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Workshop Manual, EHP/ FHP Lawn & Garden Service, 1999

1. L REDorBLUE G BLACK 4 CIRCUIT 6 CIRCUIT GROUND i i IGNITION IGNITION 1 CONNECTOR CONNECTOR m um e m m ee ee umo Y CLUTCH BRAKE WHITE 5 BLACK CONNECTOR 3 amp BLACK s S ELECTRIC CLUTCH 8 0 0 0 START CIRCUIT WHITE WHITE BLACK 0 O f CLUTCH CIRCUIT RED ATTACHMENT 0 ENGINE SHUTDOWN CONNECTOR CIRCUIT BLACK L www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 3 Test the Solenoid operation Using the Alligator Clip Bypass Jumper clip across the solenoid from the battery cable side to the positive coil terminal White Wire as shown in Figure 2 If the engine turns over or cranks the Solenoid is good then go procedure 4 If the engine will not turn over or crank remove the Alligator Clip Bypass Jumper and install it across the negative coil terminal black wire and the Battery Chassis Ground This is shown in Figure 3 to chassis attachment point for the black battery cable Try to turn over or crank the engine If the engine turns over or cranks repair or establish a good Ground for the Solenoid If the engine will not turn
2. Pa 1 bo t BLACK 3 oe eae ATT MENT CLUTCH GROUNDING CLUTCH OFF CONNECTOR HOUR Q9 CO meter OPTIONAL o SPARK PLUG BLACK IGNITION UNIT 2 PLUGS ON TWIN CYL ENGINES S AME DC RPM 28 VOLTS AC MIN 3600 RPM CHARGING SYSTEM DISCONNECTED Y LIGHTING SYSTEM o ORANGE 5 3600 DIODE ALTERNATOR 1 WX 1 14 VOLTS AC MIN 3600 RPM LIGHTS OFF HEADLIGHTS BROWN Pcr NOTE YOUR TRACTOR IS 79 EQUIPPED WITH SPECIAL ALTERNATOR SYSTEM THE LIGHTS ARE NOT o CONNECTED TO THE NON REMOVABLE REMOVABLE BATTERY BUT HAVE THEIR CONNECTIONS CONNECTIONS IGNITION SWITCH OWN ELECTRICAL SOURCE BECAUSE OF THIS THE MAKE BRIGHTNESS OF THE LIGHTS WIRING INSULATED CLIPS WILL CHANGE WITH ENGINE NOTE IF WIRING INSULATED SPEED AT IDLE THE LIGHTS CLIPS WERE REMOVED FOR SPEEDED UP THE LIGHTS SHOULD BE REPLACED TO vad NA WILL BECOME THEIR BRIGHTEST PROPERLY SECURE YOUR WIRING 71 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HARNESS 156442 OPERATOR PRESENCE SYSTEM A TO IGNITION SWITCII 7 BLACK uyo BLACK M TERMINAL BROWN 194 16A BLUE L TERMINAL Y TERMINAL 1A RED TERMINA
3. LE dais LHDL 11Y4 OL ce 1 OL 5 NAAND AYTAN OL T MOVIE ez SE aaa 1z 5 For Husqvarna Parts Call 606 678 9623 or 606 561 4983 6 Changes for Tractor Electrical Systems A 15 Amp Fuse is used on 1999 Lawn Tractors Lawn Tractors made before 1999 can use either the 15 Amp or 30 Amp fuse All Garden Tractors should use the 30 Amp fuse 2 A new snap in ignition switch E 163968 came into use during 1998 pro duction It was first used with the new GT Stealth aesthetic package This ignition 13 mp Fuse switch will be added to other aesthetic packages and on most FHP tractors by the year 2000 When the snap in ignition switch is used the longer ignition key must be used 30 Amp Fuse Ignition Key 140401 140403 Generic 140402 Craftsman 0 CRAFTSMAN IGNITION SWITCH FHP wire harnesses have had red tape on the red wire from the battery In 1999 this will change to a white tape with a red This will make the wire easier to find and will better explain the purpose of the tape If the wires to the ammeter are reversed it will read in reverse discharg ing when charging www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TRACTOR FRAME SECTION CLUTCH BRAKE KIT FRONT SUSPENSION KIT FRAME KIT Clutch bracket replacement kit 71 917 137329 Front suspens
4. i TAS L ME oo BLUE i B i tg 1 FUEL SHUT OFF 50 LENOIC FF G M L NONE er TAUNAIGHT E L EL 60 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Hn NEW OPERATOR PRESENCE SYSTEMS for 1998 The Operator Presence System is designed to protect the operator of the tractor This system will short the engine ignition for the engine to die and the mower blades to stop when the operator is off the seat and the mower or ground drive is engaged When the operator is in the safe position the tractor and mower will work The operator presence standards define the safe position as the operator in the tractor seat The operator presence will be disengaged and the engine ignition system will function when The mower Engagement Lever must be disengaged or the mower PTO Switch must be off The Clutch Brake Pedal must be down The Ignition Switch should be in the Start or positions Be sure ALL safety devices the Operator Presence System electrical harnesses and interlock switches are in place and functional when you are done working on the customers product Parts which are worn modified or damaged should be repaired or replaced or the product should be made non functional until repairs are completed New ANSI standards went into effect on July 1 1997 that mak
5. B7 l 30 E dn fonce E EUH f occ OPERATOR C meter O pium OPTIONAL ENGINE _ 2 C iGNITER 68 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 ELECTRICAL HARNESS WIRE COLORS for SOURCE 917 TRACTORS RED may be HOT whether or not the key is in ON position WHITE wires in the starting circuit BLACK to Ground they are often in circuits that ground engine ignition GREEN hot wires to Seat Switch in operator presence circuit with relay BLUE wires to Carburetor Solenoid Hourmeter or switched accessories ORANGE power wire to Headlight Switch BROWN power wire from Headlight Switch to the Headlights or Taillights YELLOW from Engine Alternator to Regulator Relay to Stator Brake Use this chart as a general guide on current tractors Wire colors on older tractors may vary where they are now Blue or Yellow EVX Electric Clutch for Lawn Tractors F H P Part Number Engine Clutch Model Resistance 145028 Single Cylinder EVX 60 6 46 7 10 Ohms 160899 Twin Cylinder EVX 80 4 35 4 75 Ohms 1 Check resistance of windings 2 Check to see if windings are grounded 3 Check for 12 Volts DC at clutch connector 4 Use Burnishing Procedure on new or replaced electric clutch Burnishing Procedure This procedure should be performed with the mower or snowthrower attached NOTE Do not add additional load e g cutting grass or blowing snow 1 Run engine at full throttle and enga
6. 5 Z LS e 0 623 or 606 561 4983 E A EM an n y 1 Wee PON CN SS N A www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TABLE OF CONTENTS GENERAL SECTION 1 Model Plate Parts Stock Training Books Bolt Torques Lubrication Spark Plug RPM Settings TRACTOR BRAKE ADJUSTMENTS ne SECTION 2 Lawn Yard And Garden Tractors TRANSAXLES AND HYDRO INFORMATION SECTION 3 Hydro Oil Filter Change Hydro Troubleshooting Charts MOWER DECKS BLADES BAGGER INFORMATION SECTION 4 Deck Leveling Deck Belts Replacing Deck Safety Guards Deck Repairing And Service Tips Blade Listing BELT INFORMATION SECTION 5 ELECTRICAL AND BATTERIES SECTION 6 Battery Testing And Charging Troubleshooting Starter Circuits Electric Clutch Adjusting Operator Presents System E TRACTOR FRAME AND STEERING eeees SECTION 7 Tractor Frame And Steering Repairs E BE ENGINE INFORMATION pu Rota SECTION 8 GCRETILEERS a edades Dd Ur tSt iM SECTION 9 SPECIALTY TOOLS AND TEST EQUIPMENT SECTION 10 1 Part No 163578 REV 4 www mymowerparts com For Husqvarna Parts Call
7. Check the electrolyte level If the cell at negative post of the battery has less than 3 inches of electrolyte dispose of battery properly If electrolyte is not 1 4 inch over battery plates in any cell of the battery add water to the proper level Cut Away View Battery Vent Cap Air Space Battery Cell NOTE Checking the electrolyte is not possible with Maintenance Free Sealed Batteries If vent plugs are not easily removable skip this step Correct Liquid Level 49 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Clean the battery exterior Use a solution of one cup baking soda to 1 gallon of water and stir Do not get cleaning solution in the battery cells Use disposable wipes to clean and dry battery 72 Ss BAKING Charge the batteries Use a CONSTANT CURRENT CHARGER set at 8 to 10 amps for 2 to 4 hours It may be necessary to adjust charge rate up after 30 minutes Testthe batteries with a Load Tester likethe MILTON BT1260 Connectthe Test Leads to the appropriate battery terminals Actuate the Load for 2 3 seconds to eliminate any surface charge If voltage drops below 7 2 volts discontinue test immediately and properly dispose of battery for internal failure Note the Open Circuit Voltage for the battery state of charge Actuate the load for 15 seconds and note the voltage at the end Testers are designed for automobiles and trucks with larger capacity batteries Lawn and garde
8. Run or the Run and Lights position e Operator Presence Relay 1 is energized opening the contacts that otherwise would kill the ignition e Operator Presence Relay 2 is energized opening the contact that normally engages the Stator Brake e The Stator Brake a magnetic field brake is actuated e The Fuel Shut off Solenoid is energized letting fuel into the carburetor This circuit also supplies current to the S A M on Kohler Command Engines with this ignition system Operator Presence Relay 3 disconnects the engine charging system from the tractor 62 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 NO SEAT SWITCH 71 917 160784 NC SEAT SWITCH OLIVE GREEN 121305X GRAY COLOR BLACK WIRES A Gray Interlock Switch 71 917 153664 NO NO Black Gray Interlock Switch 71 917 161343 NO NO TURNING OFF THE ENGINE and THE OPERATOR PRESENCE SYSTEM To understand how operator presence works we start with how the engine stops running The engines we use from Briggs amp Stratton Kohler and Tecumseh have a MAGNETO IGNITION SYSTEM This system has an armature assembly next to the flywheel When the magnet on the flywheel moves past the armature current flow is created and at the specified moment a switch closes and the spark plug fires To turn off the engine the ignition must be killed To kill the ignition you close switches that ground out the armature E
9. BRIGGS amp STRATTON Heat Shield Tubing KOHLER CV18 25HP BREATHER ANTTI ICING PART NUMBER 71 501 54 755 17 During the winter of 1996 97 we received some re ports of icing in the breather hose on CV18 25 engines Anew anti icing kit 71 501 54 755 17 has been devel oped to alleviate the problem The kit includes a manual two way valve for rerouting the breather in cold weather 101 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 New Products KOHLER Breather Anti Icing Kit CV18 25 During the winter of 1996 97 we received some reports of icing in the breather hose on CV18 25 engines A new anti icing kit 54 755 17 has been developed to alleviate the problem The kit in cludes a manual two way valve for rerouting the breather in cold weather The installation instruc tions are included elsewhere in this manual Hydraulic Lifters Update KOHLER has been using hydraulic lifters in the Command engines since they were introduced in 1988 The lifters have proven themselves under field conditions in thousands of engines for millions of hours Occasionally however we get a report of noisy lifters where the problem is persistent or reappears following corrective action A task force has been formed to study any recurrent reports and determine if there is any remedial action that can be taken The task force is still meeting and we anticipate further results but their research has
10. 7 Follow purge procedures as described in step 7 on previous page of this manual Q 277 CHECK 8 If tractor functions properly check oil level and rs top off with recommended oil if needed THESE 9 If tractor still won t drive replace hydro pump ay or defective component and follow recommended start up purge procedures 21 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 E TROUBLESHOOTING CHART GARDEN TRACTOR WITH HYDRO GEAR TRANSAXLE INSPECT INLET FILTER HOSES AND FITTINGS CHECK OIL CONDITION OPERATES IN ONE DIRECTION ONLY DEFECTIVE U REPAIR OR REPLACE INSPECT CHECK BRAKE DEFECTIVE DEFECTIVE DEFECTIVE ADJUST ADJUST TO PROPER BYPASS VALVE SETTING LINKAGE CHECK DEFECTIVE OK CHECK HOUSING FOR EXCESSIVE Ie DEBRIS BUILDUP CHECK VEHICLE LOAD DEFECTIVE OK CLEAN OFF DEBRIS VEHICLE LOAD REPAIR OR REPLACE TRANSMISSION INSPECT INLET FILTER HOSES AND FITTINGS DEFECTIVE CHANGE OIL NOISY UNDER LOAD CHECK OK BRAKE OK SETTINGS DEFECTIVE CHECK FOR EXCESSIVE VEHICLE LOAD HIGH ADJUST BRAKE TO PROPER SETTING CHECK FOR LOOSE REPAIR OR a LINKAGES AND TRANSMISSION TO METAL CONTACT POINTS REPLACE OR REPAIR LOOSE PARTS 22 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HYDRO TRANSAX
11. Check for a seized engine After eliminating or correcting the above mechanical reasons for no crank condition and if engine does turn over freely by hand follow the test procedures found on the following pages 96 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 SYMPTOM ENGINE TURNS OVER BUT WON T START 1 Talk to the Customer Get a complete description of the problem e Let the customer help you isolate the problem by describing the symptom 2 Verify the symptom Operate the product if possible to verify complaint Determine what may already be known about the problem from past experience service flashes etc 3 Verify all controls are in the proper position for starting Clutch pedal e PTO switch Ignition switch 4 If engine still does not start check fuel Check the quality and quantity of fuel eliminate bad fuel as a factor by using the smell and volatility tests A varnish odor indicates that the fuel has deteiorated and should be replaced an inspection and cleaning of the fuel system may be necessary The volatility test will determine the combustibility of the fuel Wet your finger with fuel from the fuel tank then wave your finger in the air If the fuel is good it will evaporate quickly and feel cool on your finger which indicates that the fuel has a good amount of volatility If bad fuel is found replace with fresh fuel and try to start tractor NOTE Fuel can
12. average Hydro transaxle has a different sound level 1 Check oil level as previously described using a ruler for LT tractor and oil level port for GT 2 Check cooling fan if applicable for obstruction and or broken fins if fan blade is broken re place to keep the transaxle running at optimum performance keep the area clean It s recom mended to use air to clean off debris Although using a garden hose low pressure with water is acceptable as long as the transaxle is completely cooled down for example clean with water before the customer cuts the grass or after as long as the tractor has sufficient time to cool down 3 Check brake setting to ensure that it has the proper clearance and that the puck is not giving resistance during freewheel To check brake clearance place a feeler gauge between the two outer discs if the clearance is out of range 020 040 for LT tractor and 020 025 for GT tractors adjust the break retainer as needed to bring clearance into this range 4 Check bypass valve linkage to insure that the bypass valve is fully opening and closing when the actuator is activated 5 Verify axle key is in place and in one piece HYDRO TRANSAXLES LT TROUBLESHOOTING SYMPTOM ENGINE RUNS TRACTOR WON T DRIVE 1 Check bypass actuator to insure that it is in the Drive position 2 Check belt integrity and that there is not excessive slippage on the input pulley If the belt is worn dry rotten broken etc r
13. EA 74980612 KT 43g KA 191 doni At the end of the pittman shaft a bolt and washer replace the clip ring 84 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 1997 FEDERAL EMISSIONS REGULATIONS AND NEW FEDERAL E P A EMISSIONS CERTIFIED ENGINE WARRANTY STATEMENT ON PRODUCTS SOLD IN USA MODEL NUMBERS engines produced after August 1 1997 and sold in U S A are to be in compliance ISSUE New utility lawn amp garden equipment engines built after August 1 1997 must be designed built and equipped to meet the Environmental Protection Agency EPA emission standards The fol lowing parts and warranty considerations are part of this new law PARTS Emission related parts as defined below are covered for 2 years parts and labor terminology varies by engine manufacturer refer to emission Warranty statement for specifics 1 Fuel Metering System 4 Catalytic Muffler if so equipped Carburetor assembly and internal components Exhaust manifold Cold start enrichment system primer choke Muffler gasket Fuel Pump Air injection system or pulse valve Fuel filter Carburetor Gaskets 5 Crankcase Breather assembly amp its components Intake pipe Breather connection tube 2 Air Induction System 6 Miscellaneous Items Used in Above Systems Air cleaner filter element Vacuum temperature position time sensitive 3 Ignition System valves and switches Spark plug Connectors and assemblies I
14. C System C will be used on Source 917 tractors with a Kohler Command Single Cylinder engine and manual mower engagement on a 42 Mower deck In this system electrical current flows from the Ignition Switch through either the Seat Switch NO or the Clutch Brake and Attachment Switches to energize two Operator Presence Relays Operator Presence Relay 1 when de energized grounds the ignition to stop the engine Operator Presence Relay 2 when de energized connects to short circuit the engine alternator stator The shorted stator creates the maximum potential opposition to the charging magnets The increased drag of the charging system helps oppose the flywheel momentum and stop the engine faster This is a Stator Brake There is a Stator Brake with the 5 Amp charging system with two relays in the harness There is a different Stator Brake with the 15 Amp charging system with three relays in the harness With the 15 Amp system Relay 3 disconnects the charging system from the tractor This directs all the current from the alternator to the Stator Brake In this system the Seat Switch is Olive Green and normally open when the operator is off the seat The operator may actuate the Operator Presence Relay two ways e Both the Clutch Brake and Attachment Interlock Switches are closed in the safe position e The operator is on the seat closing the Seat Switch When either of these conditions are met and the Ignition Switch is in the Start
15. SF71 297 071 917 151786 Ring Kit SEARS STEALTH HOOD TRACTOR MANUALS IN 1998 OMITTED THE HEADLIGHT SOCKET 71 917 163996 4152J 8 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 DIV O92 092 092 092 092 092 092 092 O92 PLS 192 192 192 192 192 192 192 192 192 PART 81010C 84010C 85010C 87010C 88010C 89010C 81410C 82010C 86010C Grbureerk Chest Cleaner CarbForce by Pneumat 1 Multipurpose Carburetor amp Choke Chaner Carbyresor inene Cleaners and Lubricants Sold in Case Lots Only DESCRIPTION SIZE CASE SIZE Multi Purpose Cleaners amp Degreaser Biodegradable Citrus Force Multi Purpose Penetrant Lubricant Corrosion Preventive amp Moisture Displacer Fourway Force Case Multi Purpose White Lithium Grease Lithium Force Multi Purpose Carburetor amp Choke Cleaner Carb Force Multi Purpose Battery Spray Protection Battery Protection Contact Cleaners Elec Components Refrigeration Dry Teflon Lubricant Multi Purpose Cleaner and Degreaser Clean Force Multi Purpose Hand Cleaner and Skin Softener Hand Force Battery Protectant Vegreaser rs CitrusForce 0 09 Biodegradable Degreaser Prevents Corrosion TNT deed te aedet eraud setata iite aru eo mig 9 www mymowerpart
16. sight smell sound and touch taste not recommended Use available tools and test equipment 4 Replace or repair failed component 5 Verify proper operation and you re done Troubleshooting is a systematic approach to problem solving that requires the technician to have a set process in mind By using this approach on every service call the chances of the technician overlooking a valuable piece of information is greatly reduced SYMPTOM ENGINE WILL NOT TURN OVER CRANK 1 Talk to the Customer Get a complete description of the problem Let the customer help you isolate the problem by describing the symptom 2 Verify the symptom Operate the product if possible to verify complaint Determine what may already be known about the problem from past experience service flashes etc 3 Verify all controls are in the proper position for starting e Clutch pedal PTO switch Ignition switch 4 If engine still does not crank Listen for audible click of the starter solenoid closing Manually turn the engine by hand to verify that the engine turns free to eliminate the possibility of the starter drive jammed into the flywheel 5 If the engine does not turn over by hand Check for starter drive jammed into the flywheel Check oil level if overfilled remove spark plug s clean oil from cylinder s drain crankcase and refill with correct amount of oil to insure the engine is not experiencing a hydraulic lock
17. to step b b Trace the red lead from the SAM to its power source connection Test for bat tery voltage at connection with key switch in start and run positions At least 7 volts must be present If voltage is low trace the green ground lead from the SAM and check for a good connection to ground If available voltage is good and resistance of modules was good step a replace the SAM and retest modules for spark 111 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Procedure 2 Intermittent Spark If a misfire or intermittent misfire is noticed follow this procedure 1 Start engine and warm up for 10 minutes Stop engine 2 Disconnect one spark plug lead and attach it to spark tester 92 15024 455 02 Attach a tester clip to a good ground where it will not vibrate loose during test running DO NOT attach clip to spark plug 3 Be sure drive is in neutral and disengage any external loads 4 Start engine and run on one cylinder 5 With engine running at 1200 1800 RPM observe tester for consistent firing for 10 15 seconds 6 Accelerate engine to 2800 3000 RPM and observe tester for consistent firing for 10 15 seconds 7 Stop engine and repeat procedure for opposite cylinder 8 If intermittent spark was observed at any time replace the inconsistent module s Intermittent Spark Complaints on KOHLER 22HP amp 25 HP with Smart Spark Ignition We have received isolated reports of
18. 0 5 ohms from the wiring harness stator winding is OK Measure the resistance from the If resistance is O ohms stator winding lighting lead to ground using an is shorted Replace stator ohmmeter If resistance is infinity ohms stator winding or lead is open Replace stator 1 Make sure the lights are not burned 1 Replace burned out lights out 2 Disconnect the lighting lead yellow 2 If voltage is 13 volts or more stator is from the wiring harness OK Check for loose connections or shorts in wiring harness With engine running at 3400 RPM measure voltage from lighting lead If voltage is less than 13 volts test to ground using an AC voltmeter stator using an ohmmeter Test 3 3 With engine stopped measure the 3 If resistance is approximately 15 ohms resistance of stator from lighting lead stator is OK to ground using an ohmmeter If resistance is O ohms stator is shorted Replace stator If resistance is infinity ohms stator or lighting lead is open Replace stator 106 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 1 Make sure lights are not burned out 1 Replace burned out lights 2 Disconnect the braking lead green 2 If voltage is 35 volts or more stator is No from the wiring harness OK Circuitry on unit that grounds braking Lights lead is shorted Or With engine running at 3400 RPM Battery measure voltage from braking lead to If voltage is less than 35 vol
19. 3 WHILE HOLDING AND SQUEEZING THE AXLE BRACES TOGETHER RETIGHTEN ALL FOUR AXLE BRACE BOLTS ITEM 1 4 REPEAT THIS PROCEDURE ON LEFT HAND SIDE GT steering on garden tractors with hori zontal engine becomes very hard to turn or freezes up Solution remove steering bell crank and lubricate the bell crank shaft Replace bell crank assembly VGTH GROUND DRIVE BELT KEEPER KIT 71 917 156109 Gt Hydro s main drive V Belt comes off to the inside of the input pulley between the LOCKNUT pulley and the hydro transaxle Solution install bolt belt keeper kit number 71 917 156109 1 16 to 1 4 TRANSMISSION INPUT PULLEY 82 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TRACTOR FRAME SECTION CLUTCH BRAKE KIT FRONT SUSPENSION KIT FRAME KIT Customer reports side to side play in the steering wheel 1 Make sure the steering shaft extension adapter nut and bolt were tighten securely during tractor set up to 18 22 FT LBS SEE 1 2 Check to see if the steering assembly needs to be repaired by watching the small pinion gear as the steering shaft is turned If the small pinion gear and large sector gear turn at the same time when rotating the steering shaft the unit is ok If the small pinion gear moves before the larger sector gear the steering assembly needs to have shim washer added Tractor should have from 3 to 5 Shim washer s on the pittman shaft before the
20. Afterfire Solenoids MA SOLENOID NOZZLE FIXED JET This type of Anti Afterfire system works by shutting off fuel flow through the main jet The sole noid is energized when the ignition switch is turned to the on position when the switch is turned to the off position the spring loaded plunger is pushed into the jet This system works best when the throttle control is in the mid to full position This reduces the amount of fuel in the idle circuit of the carburetor Very little fuel will be available to burn in the muffler and afterfire Engines Without Anti Afterfire Solenoids VP ur A 7744 Before shutting the engine off move the throttle to the slow position for 30 45 seconds This allows the engine to coast the least amount of time and muffler to cool internally 99 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 UNDERSTANDING ENGINE HUNTING amp SURGING Hunting and Surging at True Idle Engine hunting and surging at true idle is caused by a fuel delivery problem or an air leak True idle is the carburetor setting when the throttle plate linkage is against the idle speed adjusting screw after idle mixture adjustment Because the throttle plate is held stationary during true idle hunting and surging must be caused by an improper air fuel mixture related to an air leak or an obstruction in the idle circuit At true idle the governor spring applies no force on the throttle plat
21. Assembly from transmission 20 Remove the long Bolt that holds the top rear of belt guard to the transmission and install on new transmission Instructions are from Standing at the operating position of the tiller On DRT models remove both depth stakes at the same time 117 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Rear Tine Tiller Transmission Replacement Assemble Tiller 1 Install Engine and engine Reinforcement Brackets on transmission and tighten all bolts 2 Install Counter Weight onto transmission and tighten bolts 3 Install Idler Bracket Assembly to the transmission and tighten 4 Install Transmission Pulley and route V Belt around transmission pulley and engine pulley 5 Install Handle Assembly hook up Control Cable to idler bracket install Shift Indicator and Shift Rod to shift lever and hook up Throttle Control Adjust Control Cable Spring for 5 8 stretch 6 Add top rear belt guard Bolt and Spacers put long Spacer on first then add Pinch Guard then the Short Spacer and Washer Place the spacer and washer onto the rear lower belt guard bolt 7 Install Belt Guard add Flat Washer and Cap Nut to front and top back studs at bottom of belt guard use flat washer and regular nut 8 Install Tine Shield and front Tines Shield Brackets as an assembly Place all bolts and nuts before tightening 9 Install right and left Tine Assembles Use recommended Shear Pins 10 Inst
22. Call 606 678 9623 or 606 561 4983 OPERATOR PRESENCE SYSTEM System will be used on Source 917 tractors with a Kohler Command Single Cylinder engine and manual mower engagement on a 42 Mower deck In this system electrical current flows from the Ignition Switch through either the Seat Switch NO or the Clutch Brake and Attachment Switches to energize two Operator Presence Relays Operator Presence Relay 1 when de energized grounds the ignition to stop the engine Operator Presence Relay 2 when de energized connects to short circuit the engine alternator stator The shorted stator creates the maximum potential opposition to the charging magnets The increased drag of the charging system helps oppose the flywheel momentum and stop the engine faster This is a Stator Brake There is a Stator Brake with the 5 Amp charging system with two relays in the harness There is a different Stator Brake with the 15 Amp charging system with three relays in the harness With the 15 Amp system Relay 3 disconnects the charging system from the tractor This directs all the current from the alternator to the Stator Brake In this system the Seat Switch is Olive Green and normally open when the operator is off the seat The operator may actuate the Operator Presence Relay two ways e Both the Clutch Brake and Attachment Interlock Switches are closed in the safe position e The operator is on the seat closing the Seat Switch When either of the
23. Ionization of the gap occurs resulting in an arc at the plug electrodes This spark ignites the fuel air mixture in the combustion chamber The CH CV22 25 amp CV16 engines are equipped with an electronic capacitive discharge ignition system with electronic spark advance A typical application Figure 3 consists of the following components A magnet assembly which is permanently affixed to the flywheel One CV16 or two electronic capacitive discharge ignition modules which mount on the enginecrankcase Figure 2 A spark advance module SAM which mounts to the engine shrouding Figure 4 A 12 volt battery which supplies current to the SAM A kill switch or key switch which grounds the SAM to stop the engine One CV16 or two spark plugs 1 12 Volt Battery Interlock Switch or Off Position at Key Switch park Avante Module 008 012 Air Gap 108 www mymowerparts com FIG 3 For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Figure 3 Capacitive Discharge Ignition System with Spark Advance The timing of the spark is controlled by the position of the flywheel magnet group relative to the engine top dead center and the delay created by the spark advance module Do not attempt to convert engines from Smart Spark to fixed timing by changing the ignition modules Br 12VDC CONDITIONING NE DELAY CIRCUIT CIRCUIT TO PULSE YE LEON SEMI CONDUCTOR COMPARATOR GENERATOR SWITCH CHARGE RES
24. MOD MINI DMAAMIND OL 431 11934 OL O3 B62 0 uy oeasna 1HOUYN3H 01 7 O38 9 ALIKA co QION3TOS D gt E AMALIVE OL t 2 gi ar amw QIONS S 01 ah ve E AV OL XW B are ILIM UNNIMH3L V INYO 881 962 3H Sa 3LIEA V X XNE vrl d BE v92 MOTTA E TWNIVRL L8 02H 01 OL HOLIMS NOILINOI OL vl CTRL WO a 578 CNN URL POUR VL e vi 98 HOLIAS NOILINDI OL For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HARNESS 163845 OPERATOR PRESENCE SYSTEM C 8 o N OG 861 JB Eme E 03 ESI v RA gi ALIMA OOD SISS 52 ve G34 HO19NNOO NINA OL w NERO 0 vel V6 N33 vil ne OL D d HOLIAS 1935 76 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HARNESS 160735 OPERATOR PRESENCE SYSTEM ELE FUSE 30 AMP p OPTIONAL 0 d ee li i STARTER MOTOR c M O Om PaT d ELECTRIC CLUTCH De eel et ice ey CLUTCH BRAKE 0 PEDAL UP ot Ba i 1 Qa D Echo m lcm J PTO DIS
25. RED 228 15 9 0 BLACK 25 mao BLACK 16 GREEN 184 TO SEAT SWITCH ea LL GREEN 17B 12B RED TO ELECTRIC CLUTCH 19 27 BLACK BROWN 9 TO HEADLIGHT HARNESS 1 BLACK H 4B RED BLACK 19A BLUE TO ENGINE SHORTING TO REGULATOR 198 BLUE TO AFTERFIRE TO ENGINE CONNECTOR TO 4 V TO HOURMETER 23B BLACK BLUE 6B TO HOURMETER ORANGE 24 14B BLACK WHITE 5 3 TO PTO SWITCH 28A BLACK RED EAR 16A BLACK BROWN Y TERMINAL 20B TERMINAL TO IGNITION SWITCH 1 BLACK AA RED TGA RED L TERMINAL 24 RED B TERMINAL 5A WHITE S TERMINAL 18B GREEN TERMINAL 24B ORANGE TO IGNITION SWITCH BLACK g 14A BLACK G TERMINAL IGNITION SWITCH 163968 FOR HARNESS 164083 9A BROWN L TERMINAL TERMINAL 14A WHETE S TERMINAL 2 RED BY TERMINAL nus YARED AI TERMINAL 188 GREEN AQ TERMINAL N 208 M TERMINAL www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HARNESS 163845 OPERATOR PRESENCE SYSTEM C RED BLACK o o BATTERY SOLENO
26. Set Small Engine see note Adjustable Wrench Set 3 piece Allen Wrench Set 11piece Standard Allen Wrench Set 11piece Metric T Handle Hex Keys 8 pieces Ball Pein Hammer 12 oz Claw Hammer Fiberglass Dead Blow Hammer 3 lb Diagonal Cutting Pliers 7 Drill 9 6Volt Reversible Ear Protection or use ear plugs Flair Nut Tubing Wrench Set Flex Handle 1 2 Dr breakerbar Flex Spout Oiler 16 oz Gasket Scraper putty knife 1 1 4 wide GasketScraper general purpose w 3 blades Goggles Grease Gun Hack Saw 12 Hex Driver Set 8 piece Impact Socket Set 6pt 13pc 7 16 to 11 4 Locking Pliers 7 curved vice grip Metal File Half Round Needle Nose Pliers Nut Drive Set 7piece 3 16 to 1 2 Oil Filter Wrench Pipe Wrench 14 Punch Chisel Set 5 piece Rolling Wedge Bar 16 Screwdriver Power Set 5 phillips 5 STD Socket Wrench Set 1 2 Drive Socket Wrench Set Metric 1 4 amp 3 8 Dr Socket Wrench Set SAE 1 4 amp 3 8 Dr Tool Box flat top Torx Bit Set 7 pieces Wire Brush 1 1 16 x 10 Wrench Set Box and Open End Wrench Set Metric Box Open End 11 pcs Division 71 Supplies Continued Description Tire Sealant Pneumaseal 10 oz caulking tube Tire Sealant Pneumaseal 16 oz bottle Tire Sealant Pneumaseal 32 oz bottle Tire Sealant Pneumaseal 5 gallon pail Tire Sealant Pump for 5 gallon pail Many listed tools will not be needed if this is ordered See Industrial Tool Catalog 121 www m
27. already uncovered some significant findings A Priming Based on information supplied by the lifter supplier we have been recommending that new replace ment lifters or lifters that had been removed for service or cleaning should be manually primed with engine oil before being installed The task force has determined that this procedure is not worth the effort In timed tests there was no significant difference in pump up time between lifters which had been pre primed and those that had not As a result KOHLER will remove the priming procedure from service literature as it comes up for revision B Pump Up Time When an engine is started it usually takes just one or two minutes for the lifters to pump up If it was out of service for some time and the lifter chamber is full of air or replacement or serviced lifters have been installed that time may be extended while the air is being purged Originally we believed 20 30 minutes of running was adequate time to allow for purging any trapped air The timed tests conducted by the task force indicated it could take 30 60 minutes before the lifters fi nally quieted down If you get a report of lifters that are noisy after start up tell the customer to make sure the oil level is in the proper operating range Also check that he is using the multi viscosity oil Although the lifters may be noisy it doesn t harm the engine in any way Usually within 15 minutes the noise will disappear If it is s
28. be checked Turn ignition switch and PTO switch off unplug the spark plug Use TECUMSEH air gap gauge part number 670297 and cut into 3 strips or use a 0 12 feeler gauge Insert into each window and tighten the three adjustments nuts one at a time rotating until the air gap gauges feeler gauges slide out of each window with a little resistance Note This is the preferred method The clutch can also be adjusted by doing one window at a time Check compliance Check to be sure that the mower blades stop within 5 seconds after the PTO switch has been disengaged If the blades do not stop within 5 seconds recheck air gap If they still do not stop replace clutch Note It s not common for the brakes to wear out on a clutch the problem is usually the air gap ELECTRIC CLUTCH 71 917 140923 012 WASHER 71 917 126197X LOCKWASHER 71 917 RR 5 BOLT 71 917 150280 7 16 20 X 4 1 4 WINDOW GRADE 5 W MINIMUM THREAD LENGTH 1 3 8 ADJUSTMENT ctam MEET NL USE LOCKTITE ON THE BOLT TORQUE BOLT TO 50 FT LB 58 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Hn THE TRACTOR SYSTEM for ENGINE STARTING When the tractor starting circuit is energized the engine starter motor will turn For the engine to crank 1 the clutch brake pedal must be depressed down 2 the mower engagement lever or PTO switch must be in the disengaged or off position 3 the battery should test at 1
29. both square axle keys are installed in each wheel hub 5 Verify shift lever linkage is secure all fasteners are tight 6 Check brakes clutch dwell setting for proper adjustment verify brake return spring is installed 7 If transaxle is still locked up you have a internal problem in the transaxle repair or replace 8 Note 30 of all transaxles returned to the rebuild center have nothing wrong with them Set Parking Brake Check the brake clearance it should be 019 024 between the brake disc and the outside friction puck while the brake lever contacts the brake jaw Compliance brake test tractor on level ground at full speed in highest gear must stop within six 6 feet or less If unit fails follow brake adjustment procedures on page 16 17 and 18 of this manual BRAKE DISC OUTSIDE FRICTION PACK 019 BRAKE PUCK CLEARANCE 024 WITH LEVER CONTACTING BRAKE JAW BOSS DRIVE BELT DISENGAGED CLUTCH BRAKE PEDAL DEPRESSED BELT BLOSSOM WITH C AWAY FROM BRAKE PEDAL WITH CLUTCH PULLEY N E RELEASED BRAKE PEDAL DEPRESSED 19 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HYDRO TRANSAXLES GT OIL FILTER CHANGE Oil and filter change should occur approximately every 200 hours of operation or when oil condi tion results in loss of power More frequent oil and filter changes are recommended if operation conditions are severe or adverse such as pulling a plow or a ti
30. com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TESTING OF SMART SPARK IGNITION SYSTEMS ON COMMAND 22 amp 25 HP ENGINES The following procedures are provided for troubleshooting ignition problems on Command 22 amp 25 HP engines They will allow you to isolate and pinpoint the failed components Three types of ignition problems have been identified 1 No fire 2 Intermittent fire 3 Incorrect timing or advance Separate troubleshooting procedures are provided for each type of problem Perform the preliminary test first then follow the procedure that matches the symptoms Special Tools Required Hand Tachometer Tester 92 150 24 455 02 Automotive timing light Multi meter digital Specifications Required Spark plug gap 030 Ignition module air gap 008 012 010 nominal NOTE Ignition tester 92 150 24 455 02 must be used to test ignition on 22 25 HP engines Use of any other tester can result in inaccurate findings Battery on unit must be fully charged and properly connected before making any of these tests a battery that is hooked up or charged backward will crank the engine but it won t have spark Be sure drive is in neutral and all external loads are disconnected PRELIMINARY TEST To be certain the reported problem is in the engine ignition system it should be isolated from the unit 1 Locate the plug connectors where the wiring harnesses from the engine and unit are joined Separat
31. fast enough for the ignition to work When the opera tor releases the ignition switch back to the Run position the solenoid de activates and the current flow to the Starter stops ATTACHMENT INTERLOCK or PTO SWITCH T Carburetor Solenoid Some tractors have a solenoid on the carburetor This solenoid has a plunger that goes into the fixed main jet to stop the flow of fuel when the engine is turned off This plunger is retracted when the carburetor solenoid is energized to let fuel pass into the venturi It is activated when the ignition switch is in the Start and On positions on the tractors that have this feature Also read in the ENGINE section about Reduce Engine UU EE ENGINE STARTER MOTOR gt D IGNITION SWITCH CARBURETOR Afterfire SOLENOID CONTINUED FROM PAGE 65 BATTERY TO ALS FUSE 30 AMP TE STARTER AMMETER ge iy n OPTIONAL cir rol e 9 OF at Ge vedi Qu rec E E CLUTCH BRAKE a L PEDAL UP E IGNITION x SWITCH E 1 eC ware f 1 i ai EAM d E see ATTMENT GROUNDING aT CLUTCH OFF CONNECTOR G GPTIONAL c i IGNITION US e l 4 SSeS Sasa UNIT D SIN ra f eee TWIN CYL ENGINES
32. frame if no voltage is noted on the meter Repair the connection between the black battery cable and the chassis and re test until a voltage reading is acceptable Component Ground Test Put meter on R x 1 resistance scale Connect meter negative or black Lead Probe to the Negative Battery Terminal Turn the Ignition Switch and other switches to OFF position so that the component being tested has NO electrical power Touch the positive or red Lead Probe to the Ground or Ground Terminal of the component being tested If resistance is over 0 7 Ohms the ground to this component must be repaired and re tested If resistance is 0 7 Ohms or below the component is grounded Use electrical schematics and wire harness layouts on the next few pages to find component grounds The number for the newest electrical schematics book for Source 917 tractors can be found on the page for Service Information Books 70 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HARNESS 156442 OPERATOR PRESENCE SYSTEM A Hn fee hts RED 2002 255 AMMETER FUSE W STARTER OPTIONAL Parte HI e c q BLACK OTO RED O WHITE i Er ones SOLENOID T CE 1 CLUTCH BRAKE PEDAL UP WHITE SEAT SWITCH S IGNITION NOT OCCUPIED z SWITCH EE a N
33. grade without the mower deck engaged The loss of power experienced should be approximately 20 This is considered normal If the loss of power is approximately 50 this would be considered excessive 5 Bring the unit to neutral shift into forward and note the response Care should be taken to move the lever slowly to avoid an abrupt wheel lift To detemmine if the problem is with the hydro unit all external problem possibilities must be eliminated Here are some potential problem areas 1 Overheating Heat can cause a breakdown in the viscosity of the oil which reduces the pressure used to move the motor Remove any grass debris or dirt buildup on the transaxle cover and or between the cooling fins and fan Buildup of material will reduce the cooling efficiency 2 Belt slippage A belt that is worn stretched or the wrong belt too large or wide can cause belt slippage This condition may have the same loss of power symptom as overheating Typically the unit which has a slipping belt will exhibit a pulsatina type motion of the mower This can be verified visually by watching the beTt and pulley relationship It the belt is slipping the belt will chatter or jump on the pulley If the belt is good a smooth rotation will be seen Replace the belt and inspect the pulley for damage 26 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 3 Leakage The VST and 1800 Series have two oil reservoirs which can b
34. grove replace v belt and replace dam aged V pulley The pulley groove should not be rough rusty or worn V belt Abrasion from idler locked up The v belt will be worn across the width of the belt The material will be carbonized and show cracks www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Spin Burn section of v belt The V belt is tightly held by pulleys and idler spring tension when engaged against the engine pulley A mower in tall grass in a lowered position may experience a spin burn when the v belt is engaged Or check for a long v belt Ifa newly installed v belt is too short it may spin burn when disengaged V belt Rubbing on a v belt guide A v belt worn on one side will usually be caused by a v belt guard or too close to the v belt This can also be caused by a stick or rock in a v belt guide In some cases the fabric cover way be frayed P nn x Vabelbtumeddnalitve le gt gt The entire v belt can be deformed when the belt turns in a drive The belt cross section will appear deformed and instead of the belt being an oval it will be like a potato chip If this belt is reinstalled it will quickly turn in the drive again Vibration in v belt drive system If there is vibration in the drive system footpedal motion or mower deck motion check the v pulleys A pulley can cause vibra tion from a cam action if it is deformed wider or
35. intact with the wires and the connectors Check for pinched or broken wires which could be located between the switches tested Insure the engine is grounded to the chaises Use the Battery Ground Solenoid By Pass Cable for this test 8 UPON COMPLETION OF TROUBLESHOOTING remove all test jumper wires and replace the tractor 30 AMP fuse 56 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 IGNITION SWITCHIDENTIFICATION CHART IGNITION SWITCH OFF MeG ON Bet START METAL GRAY BACK 71 917 158913 REPLACEMENT SWITCH FOR PLASTIC SWITCHING IGNITION SWITCH cimcum OFF MeG START METAL WHITE BACK 4406R 98 980 STD365402 BRIGGS AND TECUMSEH ENGINES UP TO 1993 S 1 cop oD oo R A IGNITION SWITCH Ceosmow cimcum GE oe e B Ii R A START B 1 R S METAL WHITE BACK 71 917 2683R USED WITH ONAN ENGINE ONLY IGNITION SWITCH RUN est NONE 5 _ 1 5 NONE METAL WHITE BACK 71 917 140301 CHRISTMAS TREE HEAD LIGHT IN IGNITION SWITCH www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Symptom Electric Clutch Doesn t Engage Engages Intermittently Drains Battery Blows Fuses Talk to the customer Get a complete description of the problem Let the customer help you to isolate the problem by describing the symptom Verif
36. or counterclockwise until the rear tires stop turning the engine and remove the key Tighten jam nuts and retest for creeping with fastest engine rpm from both forward and reverse O BALLJOINT SHIFT MODEL 0750 SU LINKAGE TRANSAXLE T M JAM NUT ADJUST CONNECT MENT Sel ING LINK JAM NUT MODEL 0500 TRANSAXLE FIG 2 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 NEUTRAL ADJUSTMENT FOR AUTOMATIC DRIVE CONTROL LEVER Place the tractor on a smooth paved level surface Loosen Adjustment Bolt in front of the right rear wheel and lightly tighten using 1 2 wrench Start Engine and move Lever until tractor does not move forward or backward Hold Control Lever in that position and do not move Turn the engine off While holding the Control Lever to keep it from moving loosen theAdjustment Bolt Move the Control Lever to the position indicated for Neutral on the fender Tighten Adjustment Bolt securely FINE TUNE THE NEUTRAL ADJUSTMENT ON AUTOMATIC DRIVE Place the tractor on a smooth paved level surface Loosen the Adjustment Bolt using a 1 2 wrench Ifthe tractor is creeping forward move the Control Lever forward 1 4 to 1 2 inch Move the Control Lever rearward 1 4 to 1 2 inch if the tractor is creeping backwards Tighten the Adjustment Bolt securely Start engine and test from both forward and reverse 4 If tractor sti
37. order kit 71 917 149049 FIG 2 Mower engagement lever binding and or not completely disengaging on mechanical clutch 42 decks Solution install brake cam roller kit 71 917 151785 FIG 3 Idler suspension bracket breaks Avoid replacing 44 amp 50 mower housing order kit 71 917 150021 KIT 71 917 150021 RH SUSPENSION WASHER YT 13 32 3 4 12 XE RA INCLUDED HEX BOLT 5 16 18x1 1 4 TENSION ARM INCLUDED AND REIN FORCEMENT PLATE ASSY 39 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 36 THRU 50 BLADE LISTING BY RETAINER HOLE CHARACTERISTICS PART DECK CONSTRUC TYPE DECK HOLE S BLADE RETAIL NUMBER SIZE TION TYPE BOLT S NUMBER 25645 36 REGULAR STANDARD 1 1 138970 38 PREMIUM HI LIFT STAR 1 71 24651 138497 38 REGULAR HI LIFT STAR 1 71 24671 139774 38 PREMIUM MULCH STAR 1 71 24654 134148 38 REGULAR MULCH STAR 1 71 24692 121263X 38 REGULAR BAGGER 1 1 71 24673 25036 38 REGULAR STANDARD 1 1 71 24691 104418X 38 REGULAR CROSS BAGGER 1 1 25 41 38 REGULAR STANDARD 3 2 134998 38 REGULAR MULCH 1 1 138971 42 PREMIUM HI LIFT STAR 1 71 24652 138498 42 REGULAR HI LIFT STAR 1 139775 42 PREMIUM MULCH STAR 1 71 24655 134149 42 REGULAR MULCH STAR 1 71 24676 130652 44 PREMIUM STANDARD STAR 1 71 24678 25034 44 REGULAR STANDARD 1 1 71 24677 25742 44 REGULAR STANDARD 2 25321 42 REGULAR STANDARD 2 25322 48 REGULAR STANDARD 2 163819 46 PREMIUM
38. over or crank remove the Alligator Clip Bypass Jumper Install the heavy duty Battery Ground Solenoid By Pass Cable across the Solenoids large copper studs If the engine turns over or cranks go to procedure 4 Install the heavy duty Battery Ground Solenoid By Pass Cable from the negative battery termi nal to the Chassis ground as shown in Figure 5 Turn the ignition key to start If the engine turns over or cranks repair the battery ground If not go to procedure 4 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 4 Check the Attachment or PTO Switch Disconnect the Attachment switch connector or the PTO connector if the tractor has an electric clutch Place a Flat Blade By Pass Jumper across terminals holding White wires as shown in Figure 6 Turn the ignition key to start If the engine turns over or cranks replace the switch If not remove the Flat Blade By Pass Jumper replace the connector on the Attachment switch or PTO switch and go to procedure 5 ELECTRIC CLUTCH ATTACHMENT PTO CONNECTOR CONNECTOR FIG 6 Se CLUTCH BRAKE CONNECTOR FIG 7 5 Check the Clutch Brake Switch Disconnect the Clutch Brake Switch Connector from the switch Place a Flat Blade By Pass Jumper across terminals holding White wires as shown in Figure 7 Turn the ignition key to start If the engine turns over or cranks replace the switch If not remove the Flat B
39. setting are as follows On tractor 1992 and newer with a vented deck 3350 RPM or 50 RPM On tractor 1991 and older with a standard deck 3550 RPM or 50 RPM INI FULL ENGINE SPEED IN T DETENT FAST Ground speed Customer should select proper travel speed for mowing conditions and shift transaxle down to a slower ground speed if necessary to achieve a desired quality of cut MOWING SPEEDS 4 3 6 2 7 A Be sure tires are properly inflated before making any adjustment to mower Inflate tires to operating PSI shown on sidewall of tires or to specification in product owners manual CHECK TIRE PRESSURE Z REAR TIRES 10 TO 12 PSI NO M FRONT TIRES PSI 14PS 31 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Gauge wheels should be assembled so they are slightly off the ground when mowing Gauge wheel should not be rolling on the ground continuously when mowing on level ground Gauge wheels adjusted too low will cause excessive rake GUAGE WHEEL lx 2 7 SHOULDER BOLT GUAGE WHEEL CLEVIS PIN Replace worn or bent blades Check blades to be sure they are straight and have a sharp edge SSD fI f bottom edge of mower deck is worn or damaged making measurements difficult make all adjustments and measurements at the tip of the blades Be sure blades tips are pos
40. shaft and fasten them together Turn the nut on the eyebolt and watch the mandrel and blade move until the blades are even It may be necessary to pull the mandrel pad past level to compensate for any spring back Be careful not to pull the mandrel pad too far past level The mandrel pad reinforcement ring should be installed to help prevent future bending FRONT DS 100 PAD STRAIGHTENING TOOL BEND AREA TYPICAL TOOL PLACEMENT LOCATION To Install Mandrel Pad Reinforcement Ring MANDREL Remove mandrel guard GUARD Remove belt from mandrel pulley Remove mandrel pulley nut and pulley Remove and discard the three 3 mandrel mounting bolts Position reinforcement ring over mandrel pad and WASHER install new mounting bolts supplied with this kit Tighten all bolts securely NEW MOUNTING BOLTS Part No 138776 Reinstall mandrel pulley and nut Tighten securely to 55 65 ft Ibs torque Reinstall mandrel guard and V belt around pulley Make sure belt is in all pulley grooves and inside all N belt keepers S MANDREL REINFORCEMENT RING 38 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 SPACER ORDER KIT 71 917 149049 TENSIONING SPRING ATTACHMENT LOCATION TENSION SPRING CAM ROLLER KIT 71 917 149049 IDLER PLATE FIG 1 FIG 1 Tensioning spring on electric clutch 44 50 decks break Solution
41. terminals with a non metalic grease or commercially available battery terminal protection product POSITIVE TO FRAME GROUND OR TO ENGINE GROUND SITE TECHNICIAN LOAD TEST The battery must pass Open Circuit Voltage Test at 12 5 volts or higher Remove spark plug wire from spark plugs Put meter D C voltage scale larger than 15 volts Attach meter test leads to battery terminals Like Open Circuit Voltage Test Watch meter while cranking the engine for 10 15 seconds If the battery voltage drops below 7 2 volts while cranking the battery requires charging or is defective If the battery holds 8 5 volts at the end of 10 15 seconds the battery is good Reattach spark plug wire to Spark Plugs CHECK FOR PROBLEMS WITH ENGINE COMPRESSION RELEASE OR CYLINDER HYDRAULIC LOCK The symptoms include The battery may only spin the engine fast enough to start when fully charged The battery may not turn the engine starter motor This may result in Batteries not fully charged will be unnecessarily replaced There will be multiple service calls resulting in unneeded battery replacement Starter Motors may also be unnecessarily replaced 47 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 CHECK FOR CYLINDER HYDRAULIC LOCK FIRST 2 Engine Starter Motor will not crank over the engine Remove engine Spark Plug If fluid comes out of spark plug opening The fluid wo
42. the control arm to the neutral position and connect the shifting linkage Adjust the friction kit by using a torque wrench beam style or needle style on the shifter shaft nut The torque required to move the shaft should be between 150 200 inch pounds If the shaft moves at less then this setting tighten the nut on the friction kit accordingly or so that the shift lever stays in position when driving up an incline CAUTION For safety reasons never operate equipment on inclines greater then 15 deg rees SELF LOCKING NUT 2 FIBER C WASE Ra CONTROL ARM Ja METAL WASHER 4 BELLVILLE WASHERS E 28 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HYDRO TRANSAXLES ADJUSTMENT TO ADJUST MOTION CONTROL LEVER The motion control lever has been preset at the factory and adjustment should not be necessary If for any reason the motion control lever will not hold its position while at a selected speed it may be adjusted at the friction pack located on the right side of trans mission e Park tractor on level surface Stop tractor by turning ignition key to OFF position and engage parking brake LT See Fig 2 e Adjust motion control lever by tightening adjust ment locknut one half 1 2 turn GT See Fig 1 e Place motion control lever in neutral position While holding locknut loosen jam nut locknut 1 4 turn While holding loc
43. this system we use the same ignition switch we use on the tractors with magneto ignition This is possible by using Operator Presence RELAYS to make and break electrical contacts for the electrical current powering the engine posi tive battery ignition In this system electrical current flows from the Ignition Switch through the Olive Green Seat Switch when the operator is on the seat to energize Operator Presence Relay 1 and contact is made to supply electrical current to power the engine ignition system Operator Presence Relay 1 when de energized closes to make contact to supply power to actuate Operator Presence Relay 2 Relay 2 is energized when either the Clutch Brake Pedal is in the up position to close that interlock switch or when the mower PTO Switch is engaged When Operator Presence Relay 2 is energized contact is broken for power to the battery ignition Operator Presence Relay 2 when de energized connects electrical current to operate the engine battery ignition There may be addi tional relays on the tractors for a Light a Low Oil Light _ BATTERY D AMMETER FUSE GO AMP r 7 2 7 OPTIONAL ese STARTER MOTOR 1 i PE B M re ELECTRIC CLUTCH QS L CLUTCH BRAKE O CY A PEDAL UP E 9 2 1 P 1 D EAT SWITCH Mir diss OPERATOR i i PRESENCE BELAY MI 85 6 1 7 l O l
44. while at a selected speed it may be adjusted as follows Park tractor on a level surface Stop tractor by turning key to OFF position and engage parking brake NOTE Transmission should not be warm when making this adjustment Allow transmission to cool to airtemperature before making this adjustment To access the transmission adjustment it will be necessary to remove the battery and the battery box from tractor Raise seat and open battery box door Disconnect BLACK battery cable first then the RED cable Remove battery and battery box from tractoras shown NOTE When reinstalling battery box ensure that battery acid drain tube is routed toward the rear and is clear of the cooling fan Locate the access plug underthe cooling fan This plug and surrounding area must be cleaned to prevent contamination of internal parts during this procedure Before removing the plug pack a cloth in the housing pocket to absorb excess oil Using needle nose pliers remove the access plug described above When the plug is removed a small quantity of oii will flow out of the transmission This is normal and will not effect transmission function Insert a 30 torx or 5 32 alien wrench into the access hole and locate the adjustment screw Adjust the screw clockwise 1 4 turn at a time to increase motion control effort An effort of 15 18 Ibs at the motion control lever knob is nommal NOTE If for any reason the effort to move the mo
45. 1 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 PLS 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 PART 25034 25036 25321 25741 59904 65139 71208 127218 128774 129895 129963 130171 130652 130759 130794 130968 130969 131006 131264 131290 131340 131494 131845 132673 133957 134148 134149 134998 136321 136420 136819 136874 136888 137153 137380 137553 137644 137646 138255 138497 138498 138971 139774 DESCRIPTION 44 STD Lift Blade 38 STD Lift Blade 42 STD Lift Blade 38 STD Lift Blade Tube 5 3 45 X 6 Valve Stem Bushing Link Front Man Housing 38 42 Bearing Washer Trunion 44 Prem Hi Lift Blade Latch Mandrel Deflector 42 Primary Deck Belt Ground Drive Belt Primary Deck Belt Primary Deck Belt Bolt shoulder Flat Idler Brake Pad Pin Clevis Shear Pin Gauge Wheel 38 Mulch Blade 42 Mulch Blade 38 Prem Mulch Blade Runner RH Mulch Cover Mandrel Sector Baffle Ground Drive Belt 50 Prem Hi Lift Blade Shaft 44 46 50 Bolt shoulder Shaft Mandrel 38 42 Primary Deck Belt 38 Hi Lift Blade 42 Hi Lift Blade 42 Prem Hi Lift Blade 38 Prem Mulch Blade O71 O71 O7
46. 1 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 6 PLS 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 PART 148698 148763 150280 151785 152443 153535 154963 155106 155132 156109 157353 157722 158818 158913 160793 12000029 12000039 17490612 17580520 71161010 DESCRIPTION Terminal Ring Primary Deck Belt Clutch Bolt Kit Cam Roller Kit 46 Prem Mulch Blade Pulley PTO Switch Bushing Kit Hood Repair Kit Belt Keeper Kit 46 Blade Hi Lift Screw Primary Deck Belt Ignition Switch Bagger Latch E Ring E Ring Screw Bolt Screw 532124029 Lens 532126938 Bumper 532132800 Knob 101342N 102403X 104239X 104418X 104445X 1044R 104757X 105709X 106085X 106412X 106578X 106729X 106888X 106909X 106932X 106933X 108597X 108824X 109310X 109553X Belt Flat Idler Bearing 38 Cross Blade Switch Washer Hub Cap Spring Ground Drive Belt Belt Brake Mandrel Ground Drive Brake Spring Screw Knob Knob Belt Fuse Key Ignition Switch www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 RECOMMENDED PARTS STOCK TRACTOR amp TILLER DIV O71 O71 O71 O
47. 18 22 qaucz O gt zz 001 u Ln 1 MOVIE RILATI 21N12813 O4 2 XVu Q 8132Yv18 i 2 cS gt TYNINHSA D CT y HOLIAS Old 01 MOVIE EGRE o aLIHA 8 ez aad U 32Y1861 EI AVIE eaaa e 2 dii HAL3MAY Ol 5 241 2 MOT13A gt fi HOLIMS NOILINDI 01 aima XX oc gi Novia C Cos U AS 6 4 N i 2 2 e 9 569 amp CZ 9 D Am NHXAGOHXSDA c AA aaa 92 311HA gC 21 aov TYNIMHSA nd ALIA 9 13 OV1d 3dY4 N CO d aes ININ ol amazi gt A Es 2000000000000 0 Cg Gy ssanave anorravan on 59 lt eT L 3 NOLLINDI OL Qu z es Meer Ne ams ame D N3349 IYNINJAL TOT 39 E as gt OO Q 160 132v1H 61 32Y18 c C ay ci N33454 21 ANAOUD SISSYHO OL NP ovid avas 01 2 H 4 Rid aLIHM g 4 K 0 e _ x do QU xoviaf HOLIMS XOOTU3INI 11 2 1 12 OL gt em ERI AHHLIYH QIONSTOS OL 2 lt A MOVIE FT 9E Oo wovig wovid 1 re 40 MOVIE OF gt ec 311HA oe x2v10 6E
48. 2 2 DC Volts or more 4 the ignition switch must be turned to the start position The electrical circuit through these compo nents is described in order Follow the compo BLACK nents along the right column a Battery Ground The Black Battery Cable goes from a ground on the chassis to the negative post of the battery If there is not a good ground the electricity in the battery will not power any thing Be sure you have a good ground for the battery and the engine The Battery The battery is a device that chemically stores electrical energy in cells The batteries used on tractors have 6 cells with 2 1 Volts DC each 8 The primary purpose of the battery is to lt A provide the electrical power to start the tractor Ss FUSE HOLDER engine If electrically powered items need more power than the charging system pro vides the battery makes up the difference cord until it is discharged m ING WHITE Solenoid Post 5 M ox Current flows from the Red Battery Cable to Cn epus M the HOT post of the Solenoid wire 43 P yy f branches off to supply electricity to the rest of J the tractor AMMETER IGNITION SWITCH Fuse Holder CONTINUED ON PAGE 66 The low control current flows through the Fuse check for a good fuse Ammeter if so equipped The low control
49. 2490 280104 291675 394018 394019 399806 491588 495878 496894 12 050 01 12 083 05 12 083 08 25 050 02 45 083 01 45 083 02 47 083 03 52 050 02 54211 55547 91178 91334 DESCRIPTION Inlet Assy Brake Pads Washer Key Air Filter Air Filter Filter Air Filter Gear Starter Seal Cartridge Cartridge Cartridge Filter Drive Air Filter Oil Filter Air Filter Precleaner Fuel Filter Precleaner Air Filter Filter Oil Filter Adapter Flange Pulley Bearing Wheel DIV PLS PART DESCRIPTION Recommended Supplies 092 192 730301 48 OZ SAE 30 OIL 092 192 25 357 06 10W30 Kohler Oil 32 OZ O92 192 144335 Tire Sealant 5 Gal Pail O92 192 100035 Pump for Tire Sealant 092 buy oil Locally in bulk Recommended Tools 092 150 DS 100 Deck Straightening tool 092 150 19435 Starter Drive install tool 092 150 19436 Starter Drive tool for Briggs 092 150 25 761 18 Starter Drive tool for Kholer Service Kit for Current Service Flashes O71 917 158739 Debris Guard SF71 364 O71 917 159258 Washer Kit SF71 365 O71 917 139573 V Belt SF71 366 O71 917 159717 Belt Kit SF71 378 Special 46 Blades for Bahia Field or Pasture type Grass O71 917 157033 46 Blade SF71 390 O71 917 159705 46 Bahia Blade SF71 390 Service Kits For High Volume Rough Service Markets O71 917 137797 Frame Kit SF71 243 071 917 140342 Bushing Kit 96 Update Book O71 917 149681 Steering SF71 297 O71 917 149684 Steering
50. 3 After installing liner instruct customer to wait 2 hours for the sealant to completely dry before use Un dx Co patr PATENT PENDING FIG 3 37 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 42 DECK MANDREL PAD REINFORCEMENT RING 4 KIT NO 151786 Before installing this mandrel pad reinforcement ring the mandrel pad should be checked to see if it is bent NOTE Blades must be checked for straightness before checking to see if the mandrel pad is bent Straighten or replace bent blades To check for bent mandrel pad rotate the blade tips around to check all four blade tips at the center of the deck There should be no more than 1 8 difference between the tips If there is more than 1 8 difference check to see if the left hand mandrel pad is bent inward toward the center of the deck If housing pad is bent you should use the deck straightening tool DS 100 to straighten the housing pad How to use the mower housing mandrel pad straightening tool Part Number DS 100 92 150 Before attempting to use this tool be sure the mower blades are straight Note the direction that the housing mandrel pad bent when the mower blade hit an object and line up the straightening toolto pull back in the opposite direction The deck will mostlikely be bentin the direction thatthe belt was pulling toward the idler pulley when the blade hit something and came to sudden stop Wrap the chain around the mandrel housing
51. 606 678 9623 or 606 561 4983 4 WEAR RESISTANT LINERS FOR 38 42 AND 46 MOWER DECKS Wear resistant deck liners have been developed for those customers who are using their mower deck under harsh sandy conditions Wear resistant deck liners help Make the mower deck housing more resistant to sand erosion Reduce buildup of materials that stick to the under side of the mower deck 38 standard and QC decks built from 1985 to 1997 use deck liner kit 4151881 71 917 42 QC decks built from 1992 to 1997 use deck liner kit 151882 71 917 46 QC decks use deck liner kit 157463 71 917 Remove deck from tractor Remove blades Thoroughly clean underside of deck using soap and water Allow deck to dry Using liner as a template drill 12 ea 7 32 inch diameter holes in deck Remove liner and clean it and deck of any drill shavings Apply beads of sealant on liner 1 4 inch outside of both circle cutouts if deck has teardrop stripper instead of round cut out section indicated on liner using scissors or tin snips then apply sealant to this new shape 1 4 inch all around See FIG 1 8 Press liner firmly in deck ensuring a good seal and that the drilled holes are lined up 9 Turn deck on its side and install steel rivets and washers provided using a standard rivet gun See FIG 2 10 Apply a bead of sealant all around the liner outer lip per illustration See FIG 3 11 Reinstall blades 12 Reinstall deck 1
52. 606 678 9623 or 606 561 4983 NOTES 4 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 FRIGIDAIRE HOME PRODUCTS MODEL AND SERIAL NUMBER DECAL PLATE HOW TO READ THE MODEL AND SERIAL DECAL PLATE TO DETERMINE THE YEAR THE PRODUCT WAS PRODUCED Model No Serial Plate Location Model Serial Plate Location OLD NEW 1993 JULIAN DATE SYSTEM CALANDER DATE SYSTEM One white bar means the Two white bars means the product has one year warranty product has two year warranty CONFORMS TO ANSI B71 1 1990 SAFETY STANDARDS CONFORMS TO ANSI B71 1 1990 SAFETY STANDARDS MODEL NO SERIAL NO MODEL NO SERIAL NO 917 255970 3155S 001227 FOR SERVICE AND PARTS ALWAYS GIVE THE MODEL NO 917 255970 012793A 001765 FOR SERVICE AND PARTS ALWAYS GIVE THE MODEL NO MODEL 315 Represents the 012793A Calendar date of production 315th day of the January 27 1993 The 917 255970 year Alpha character is Final gt Assembly Line A B C D 5 LastDigit of Year etc MODEL 1985 SOURCE 001765 The last six 6 digits S Plat Code designate the number of the units produced for a specific 1227 Number of Units model Each new unit will Produced start with 001001 and will continue in consecutive order 5 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 RECOMMENDED PARTS STOCK TRACTOR amp TILLER DIV DIV O71 O71 O71 O71 O71 O71 O7
53. 71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 PLS 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 O71 O71 O71 O71 O71 O71 O71 143 143 143 PART 4 139775 139868 140080 140218 140301 140403 144200 144959 145960 145967 145956 146077 146154 146525 146682 123796X 124085X 124085X 125907X 126847X 126875X 2029 3366R 4921H 4921H 6266H 6554 6555 6941R 7152 7631 7662 8134 9040 9180R 24101 24102 24103 24655 24694 33500 96145 34279 35403 35404 DESCRIPTION 42 Prem Mulch Blade Arm Support Bolt Ground Drive Belt Ignition Switch Key Ignition Primary Deck Belt Primary Deck Belt Primary Deck Belt Belt Belt Bumper Solenoid Kit Wing nut Spring Belt Support Shaft Belt Bushing Rivet Weld Nut Bearing Clip Retainer Retainer Ring Washer Tine CRT Tine CRT Belt Tube 18X 9 5 8 Runner Bulb Tube 16 X 6 5 7 5 8 Bearing Wheel Belt Belt Belt Belt Blade Prem Belt Fuel Stabil Battery Filter Air Cleaner Filter DIV O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O98 O98 O98 O98 O98
54. 71 917 126967X 71 917 136247 71 917 126965 71 917 126966X 71 917 144401 71 917 126963X 71 917 130939 71 917 126964 71 917 130941 71 917 136246 71 917 108521 71 917 126687 DESCRIPTION POLO GREEN Spray Paint SATIN BLACK Spray Paint DOVER GRAY Spray Paint NEW SEARS SILVER Spray Paint RED Spray Paint ORANGE Spray Paint GRAY Spray Paint GREEN Spray Paint GREEN New RALLY Spray Paint GREEN POULAN Spray Paint YELLOW POULAN PRO Spray Paint YELLOW Spray Paint BLUE Dark Spray Paint BRONZE Old Roper Spray Paint BRONZE New Roper Spray Paint CUSTOM SPRAY POLO GREEN NET WT 12 02 3400 123 www mymowerparts com PAINT CODE 558 459 478 417 505 506 394 423 412 422 410 418 550 419 419 416 421 472 473 510 511 388 425 For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Printed in U S A 163578 REV4 9 2 99 www mymowerparts com
55. ARRANTY as soon as a problem exists The customer is responsible for normal maintenance as specified in the owner s manual such as air filter spark plug replacement oil level checks or oil changes etc The customer is required by Federal Law to use ORIGINAL or APPROVED replacement parts any time emission related parts need to be replaced to assure that the engine will continue to meet the EPA emission standards The customer is required under Federal law to use unleaded regular or reformulated fuel This is the same as required by auto regulations The engines are designed to meet the emission standards using these fuels only UN APPROVED add on or modified parts may not be used to modify or repair an emission com pliant engine Any deviation from as built or approved replacement production parts will be a direct violation of Federal law COMMON QUESTIONS ASKED BY SEARS TECHNICIANS ABOUT THE FEDERAL EPA EMISSION WARRANTY STATEMENT THE EPA EMISSION REGULATIONS AND SER VICE PROCEDURES Q1 Do I need to check the emissions output on an engine that I ve just repaired Al No There is no provision in the EPA regulations for testing emission levels of engines al ready sold The requirements for emission certification are the responsibility of the engine manu facturer Your responsibility as a service technician is to repair with approved parts and proce dures Q2 What do I have to do as a service technician to stay in compliance with
56. ENGAGED o SEAT SWITCH b A OPERATOR 85 86 PRESENCE 1 i TEENS OPERATOR PRESENCE RELAY 2 HOUR CO METER OPTIONAL e TEMP LAMP ENGINE id AN IGNITER GROUND 1 OPERATOR PRESENCE Q gt TX SWITCHED 1 RELAY 3 NM CR LR 1 12V B 2227 1 85 86 TEMP SWITCH OO VOLTAGE REGULATOR cec 3 col HEADLIGHTS 6 gt YOUR TRACTOR IS EQUIPPED WITH SPECIAL TAILLIGHTS OPTIONAL ALTERNATOR SYSTEM THE LIGHTS ARE NOT GFC CONNECTED TO THE PTO SWITCH IT BATTERY BUT HAVE THEIR POSITION OWN ELECTRICAL SOURCE JE B BECAUSE OF THIS THE BRIGHTNESS OF THE LIGHTS RELAY I WILL CHANGE WITH ENGINE IGNITION SWITCH SPEED AT IDLE THE LIGHTS DA WILL DIM AS THE ENGINE IS SPEEDED UP THE LIGHTS REMOVABLE NON REMOVABLE WILL BECOME THEIR BRIGHTEST CONNECTIONS CONNECTIONS RUN LIGHT B L A Y WIRING INSULATED CLIPS RUN NOTE IF WIRING INSULATED CLIPS WERE REMOVED FOR SERVICING OF UNIT THEY SHOULD BE REPLACED TO PROPERLY SECURE YOUR WIRING 77 www mymowerparts com 28 OL 62 amp 0 113A B dau 92 1 W 9 ania 2 AO113A SS 3313 Hn0H OL gau aau 32v
57. EPA emission regulations A2 Just make sure you use the original engine manufacturer s approved component parts and repair procedures such as ordering the parts by product and engine model number and making adjustments as stated in service literature for the engine you re working just as you should already be doing now Q3 noticed that air filters are covered under the emissions warranty does this mean that I have to replace clogged air filters under warranty A3 No Theonly time an air filter or other emissions related part from the list above is re paired or replaced under the emissions system warranty is if it is defective in material or workman ship during the warranty period 4 Are parts covered that are not on thelist Such as valves piston rings head gaskets etc since if these parts fail they can cause emission levels to change A4 Other parts needed to complete a warranty repair may be covered under the normal engine warranty Q5 If parts are covered for two years but require replacement during normal maintenance by the customer are these replaced at no charge 86 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 5 owner s manual states that parts that wear during normal use are the owner s responsibility For example an air filter that becomes clogged is the customer s responsibility Q6 How do I close the service order when I replace an emiss
58. ET Zum PUMP CIRCUIT Figure 4 Block Diagram Spark Advance Module Operation The ignition module for this system operates in the same fashion as the fixed timing module except the trigger circuit for the semiconductor L2 Figure 2 is replaced by the spark advance module Figure 4 In addition to charging the capacitor C1 Figure 2 in the ignition module a pulse from the input coil of the ignition module L1 Figure 2 is fed to the input of the conditioning circuit The condi tioning circuit shapes this pulse putting it in a usable form for the additional circuits This pulse starts the charge pump which charges a capacitor in a linear fashion that can be directly related to the engine speed At the same time the pulse resets the delay circuit for length of the pulse width The comparator is off during this period and no output is generated As soon as the original pulse drops back to zero the capacitor in the delay circuit begins to charge When the charge on the delay capacitor exceeds the charge on the charge pump capacitor the com parator changes state activating the pulse generator This pulse turns ON the CD ignition mod ule semiconductor Energy is then transferred to the secondary of the output transformer T1 Fig ure 2 The high voltage pulse generated here is delivered to the spark plug causing arcing of the spark gap and igniting the fuel air mixture in the combustion chamber As the trigger pulse is generated al
59. EXTENSION SPRING NOS www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 2 Rear Tine Tiller Transmission Replacement Teardown CRT Tiller 1 Remove both front Counter Weights 2 Remove right side Outer Shield and Side Shield 3 Remove the right Tine Assembly 4 Remove right Wheel Assembly 5 Remove all bolts that hold right side of Tine Shield to the transmission 6 Remove right side engine Bolts remove engine Reinforcement Bracket and disconnect Throttle Cable from engine 7T Remove the Nut and Lock Washer that holds Idler Arm Shaft on the transmission 8 Remove control cable Clamp from the transmission and transfer to the new transmission 9 Change to the left side of the tiller Remove the Outer Shield and Side Shield 10 Remove the left the Tine Assembly 11 Remove left Wheel Assembly 12 Remove one Bolt that holds the Latch Bracket Assembly to the transmission 13 Remove the Bolt at the top of Depth Stake and remove the Depth Stake 14 Remove all bolts holding Tine Shield on left side of the transmission 15 Remove the Belt Guard 16 Disconnect the Control Cable from the idler bracket Remove the Idler Arm Bracket with Pulley and Arm Shaft as a complete Assembly 17 Remove the Pulley from transmission 18 Remove left side engine Bolts remove Engine and Engine Reinforcement Bracket from the transmission 19 Remove Shift Indicator Shift Rod and remove Handle
60. ID A eg S ELE FUSE 30 AMP lt BLACK OPTIONAL O lt e CLUTCH BRAKE NE Rs PEDAL UP ERE c on 1 T 1 WHITE MESS BLUE O BLUES E FUEL Mcr MES RS uiris ATTMENT CLUTCH _ IGNITION 1 CLUTCH OFF SWITCH GREEN i A e GREEN FUEL SHUT OFF Rm AS SOLENOID SEAT SWITCH NOT OCCUPIED e B JE o OPERATOR M NEL PED PRESENCE RELAY 1 Se 185 86 OOO 87 30 1 OO lan N M veuLow 87A l SPARK IGNITION PLUG 2 gt UNIT 6 PLUGS ON PRESENCE RELAY 2 TWIN CYL ENGINES BLACK TEAME DG S600 RPM 4 e REGULATOR ALTERNATOR BROWN gt gt 28 VOLTS AC 3600 RPM REGULATOR DISCONNECTED BROWN bY gt BLACK e OPERATOR 2 PRESENCE RELAY 3 85 86 79 TE BLUE 1 BLACK HEADLIGHTS RED 87 i 301 gt STATOR i BRAKE i WIRING INSULATED CLIPS NON REMOVABLE CONNECTIONS NOTE IF WIRING INSULATED CLIPS WERE REMOVED FOR SERVICING OF UNIT THEY SHOULD BE REPLACED TO O PROPERLY SECURE YOUR WIRING REMOVABLE CONNECTIONS IGNITION SWITCH Feosmo orcun make RUN B L NONE 75 www mymowerparts com DNA 1 OL QIONETOS eo 01 821 ava ati
61. L TO ATTACHMENT INTERLOCK TO IGNITION SWITCH 4A WHITE S TERMINAL BLACK ep m 18B ORANGE A TERMINAL TO SOLENOID GROUND igp BLACK 2 RED um 4B BLACK 14 BLACK 154 BLACK A TO AMMETER BLACK 124 5B WHITE 1B RED ACK OA IM TO SOLENOID BATTERY AY SJ lt 3B RED gt WHITE 8l E TO SEAT SWITCH A jy TO SOLENOID COIL 15B BLACK mM m 5 C EU BLACK 104 1 19 BROWN Se WHITE 4B 12B BLACK A B RED 2B 3A RED WHITE 54 118 BLACK FUSEHOLDER TO START INTERLOCK TO ENGINE CONNECTOR TO CHASSIS GROUND OB BLACK 134 BLACK ui 18B BLUE TO NGINE SHORTING BLACK EE plugt T RECTIFIER TO AC COIL ORANGE 184 17B BLUE TO CARB SOLENOID 72 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HARNESS 160732 OPERATOR PRESENCE SYSTEM B Hn BLACK ORC OM AMP AMMETER FUSE 30 STARTER OPTIONAL ic O WHITE FK 2 0525 7 2 0 OQ ELECTRIC CLUTCH 810 om a CLUTCH BRAKE O PEDALUP k BLACK OPERATOR PRESENCE RELAY 1 SEAT SWITCH NOT OCCUPIED SPARK PLUGS GAP SEN 2 PLUGS ON TWIN CYL ENGINES SHUT OFF SOL SMART SPARK ELECTRONICS O REGULATOR YELLOW ALTERNATOR 28 VOLTS AC 3800 APM REGULATOR DISCONNECTED CHAAGING
62. LES LT REPLACEMENT WHAT YOU SHOULD CHECK BEFORE YOU REPLACE THE TRANSAXLE Symptom Tractor has loss of drive No forward reverse motion 1 Check to see that the freeweel control is DISENGAGED position 2 Make sure the motion drive belt is not worn damaged or broken 3 Vehicle should be on level ground before performing adjustments 4 Verify that square axle key are installed in each wheel hub 5 Was air trapped in hydro transaxle during shipment PURGE TRANSAXLE 6 Adjust the neutral position Make sure shift lever linkage is tight 7 Does hydro transaxle have enough oil Check oil level and add if needed 8 Check the parking brake setting Set Parking Brake 1 Adjust the nut onto brake bolt until tight or until the brake arm will not move CAUTION do not over tighten the nut or damage may occur to the brake assembly 2 Back nut off 2 3 turn 4 to 5 flats place a 0 030 feeler gauge between the two outer discs to set air gap 3 Reinstall the cotter pin or second new nylon insert locking nut to lock the brake setting Bolt without hole requires use of Spring and 2 Locknuts Bolt with hole requires the use of Spring and Cotter Pin E L c Back off nut 4 to 5 flats Pp 2 3 of one turn 0 030 23 Place 0 030 Feeler Gauge here www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HYDRO TRANSAXLES TROUBLESHOOTING SYMPTOM TRANSAXLE NOISY Note
63. MBER WHEN REPLACING A BELT 4 Any time you are replacing a broken belt try to determine the root cause of the belt failure Failure to determine the root cause of the belt failure and correcting it may cause repeated service calls Are you installing the correct belt number for the model you are working on s there grass build up sticks or trash on top of the mower deck that is causing the belt to jump off the pulley or break Instruct the customer to keep the deck top free from build up of debris Are the Mandrel or Idler pulleys Damaged or Worn Inspect the Mandrel pulleys to make sure the pulley grooves are not bent or damaged Inspect all Idler pulleys to be sure they are not damaged or the idler bearings are not bad or frozen up and need to be replaced The mower drive belt is stretched and slipping when mowing Each deck has an adjust trunion on the mower deck engagement lever that can be adjusted to extend the belt life on a stretched belt s the Mower Deck set with excessive deck rake that is causing short mower belt life Excessive Deck rake on a mower will cause the belt to run at much higher than normal belt angles which will cause the belt to wear out or fail prematurely All Decks should have a slight rake angle front to back 1 8 to 1 2 lower at the front blade tip than at the rear of the blade with an optimum or best setting at 1 4 rake To loosen a tight belt turn the clutch rod trunion in clockwise CLU
64. MULCH STAR 1 71 24004 157033 46 PREMIUM HI LIFT STAR 1 71 24006 159705 46 PREMIUM BAHIA STAR 1 137380 50 PREMIUM STANDARD STAR 1 71 24005 156468 50 PREMIUM STANDARD THICK STAR 1 121798X 50 REGULAR STANDARD 1 1 25743 50 REGULAR STANDARD 3 2 BLADE PART NUMBERS WITHIN SHADED AREAS ARE INTERCHANGABLE CONSTRUCTION BLADES INDICATED AS PREMIUM ARE MADE OF BETTER STEEL WITH A BETTER HEAT TREAT PROCESS TO RESIST SAND ABRASION 40 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 OPTIONAL TRACTOR MOWING BLADES THAT CAN BE USED IN PLACE OF ORIGINAL EQUIPPED BLADES TO IMPROVE QUALITY OF CUT UN DER DIFFERENT MOWING CONDITIONS HI LIFT BLADE 3IN 1 MULCHING BLADE 38 BLADE 42 BLADE 46 Blade 50 Blade Part Number 134148 Original Equipped 38 Standard 3 in one mulch blade 1 Use 139774 Premium 3 in one mulching blade for better wear when mulching 2 Use 138497 Standard Hi lift blade for better bagging especially in wet conditions 3 Use 138970 Premium Hi lift blade for better wear when bagging in heavy or wet condition Part number 134149 Original Equipped 42 Standard 3 in one MULCH blade 1 Use 139775 Premium 3 in one Mulching for better wear when mulching 2 Use 138498 Standard Hi lift blade for better bagging especially in wet condition 3 Use 138971 Premium Hi lift blade for better wear when bagging in heavy or wet condition Part Number 152443 Original Equipped 46 Premi
65. NOTE IF WIRING INSULATED CLIPS WERE REMOVED FOR SERVICING OF UNIT THEY i87 30 SHOULD BE REPLACED TO PROPERLY SECURE YOUR wid i SPARK WIRING NA IGNITION 0 PLUG OPERATOR ONI 2 PLUGS ON e PRESENCE RELAY 2 TWIN CYL ENGINES NON REMOVABLE BLACK CONNECTIONS 0 REMOVABLE CONNECTIONS I do 87 85 HOS On HEADLIGHTS 30 neo o i STATOR RELAY C BRAKE ea 66 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 System D will be used on Source 917 tractors with a Kohler Command Single Cylinder engine and a 46 Mower with manual engagement deck It is similar to System C except it does not have Operator Presence Relay 2 and does NOT have the engine Stator Brake OPERATOR PRESENCE SYSTEM D In this system electrical current flows from the Ignition Switch through either the Seat Switch NO or the Clutch Brake and Attachment Switches to energize two Operator Presence Relays The Operator Presence Relay when de energized grounds the ignition to stop the engine In this system the Seat Switch is Olive Green and normally open when the operator is off the seat The operator actuates the Operator Presence Relay when Both the Clutch Brake and Attachment Interlock Switches are closed in the safe position the operator is on the seat closing th
66. O kK LIGHTING SYSTEM 1 ALTERNATOR 1 AMP AC 3600 RPM DIODE YOUR TRACTOR IS 1 EQUIPPED WITH A SPECIAL croco or ALTERNATOR SYSTEM E 14 VOLTS AC MIN 3600 RPM LIGHTS OFF THE LIGHTS ARE NOT HEADLIGHTS IF SO EQUIPPED CONNECTED TO THE 0 eer A BATTERY BUT HAVE THEIR BROWN 79 BLACK ey OWN ELECTRICAL SOURCE 5 7 T IGNITION SWITCH SWITCH GNITIONSWITE WILL CHANGE WITH ENGINE OFF POSITION CIRCUIT SPEED AT IDLE THE LIGHTS OFF M G WILL DIM AS THE ENGINE IS WIRING INSULATED CLIPS SPEEDED UP THE LIGHTS oN Bet WILL BECOME THEIR BRIGHTEST NOTE IF WIRING INSULATED 77 START B S L CLIPS WERE REMOVED FOR NON REMOVABLE REMOVABLE CONNECTIONS 9 Verify Switch operation CONNECTIONS EAM pest OF UNIT THEY SHOULD BE REPLAGED TO PROPERLY SECURE YOUR WIRING Begin testing these switches by disconnecting the ignition then the clutch brake switch and run a jumper from WHITE to WHITE If engine starts or you now get spark replace switch If tractor still will not start or spark replace the switch and perform the same procedure for the PTO switch 10 Inspect flywheel key The flywheel key should be inspected to determine if it has been sheared or damaged As sheared or fractured key will cause the magnets to move away from the optimal alignment and the voltage produced may not be sufficient to jump the spark plug s gap A slightly damaged key will produ
67. O98 O98 O98 O98 O98 O98 O98 O98 O98 7 PLS 917 917 917 917 917 917 917 917 917 917 917 917 917 917 917 502 502 502 502 502 502 502 502 536 536 661 661 661 661 661 661 661 661 661 661 661 980 980 980 PART 109808X 109816X 110452X 110485X 110883X 110884X 120951X 120961X 121263X 121687X 121748X 121749X 121798X 123549X 123713X 91954 424285 456246 492574 DESCRIPTION Hood Latch Nyliner T Push Nut Bearing Belt Belt Brake Puck Brake Puck 38 High Lift Mandrel Washer Washer 50 STD Lift Fuel Cap Spring Bulb Solenoid 30 Blade Housing 54390E701 Blade 91742E701 Blade 91871E701 Blade 40 92117E701 Blade 330278 Blade 339093 Belt Spark Plugs H10C H10C 216 J17LM J17LM 245 PM 4 J19LM 458 RC12YC PLUG RJ12C RJ12C 308 RJ12YC 2 85 RL86C L86C RL86C DP26 RV154C NAC PLUG RJ1I9LM PLUG RV17YC PLUG Standard Parts STD365402Switch STD624010Hitch Pin STD560907PIN 8 PK www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 RECOMMENDED PARTS STOCK TRACTOR amp TILLER DIV O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 O71 PLS 143 143 247 500 500 500 500 500 500 500 500 500 500 500 500 500 501 501 501 501 501 501 501 501 502 502 502 502 PART 632633 799021 736 0242 222698 270843 271962 272403 27
68. OUND BASE HELIX SPRING 4 WASHER oT RETURN Mae SPRING M PINION GEAR BRIGGS amp STRATTON CORPORATION 92 Distribution Sales amp Service Division www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Starter Drive Retaining Ring Removal Tool The inertia drive electric starters used on Current production engines have a retaining ring in a grcove near the end of the armature shaft to retain the drive components This tool is used for easy safe removal and reinstallation of the retaining ring when servicing or replacing the starter drive To Use The Tool Retaining Ring Removal 1 The rubber dust cover has a molded lip on the 2 Disassemble the removal tool by loosening the inside that snaps into a groove in the dust cover center screw one or two turns and removing the spacer See Figure 1 Turn the drive pinion outer coliar clockwise until it reaches the fuily extended position While holding it in the extended position 3 Again referring to Figure 1 grasp the spring grasp the tip of the dust cover with a pliers or vise retainer and push it toward the starter grip and pull it free from the spacer compressing the anti drift spring and exposing the retaining ring 4 Holding the spring retainer in the retracted position assemble the inner halves cf the removal tool around the armature shaft with the retaining ring in the inner groove See Figure 2 Slid
69. R LT Hydro IHT Service amp Repair Manual HYDRO GEAR GT Hydro 3010L Service amp Repair Manual KAWASAKI Engine Model FD590V 18HP Service Manual Description from BRIGGS amp STRATTON Training amp Ref Mtl D92 192 Troubleshooting Magnetron Ignition Systems 1985 Update Quick Check an Effective Troubleshooting Tool 1986 Update Systematically Troubleshooting Ignition Carbureton and Compression Troubleshooting Carburetion Systems 1988 Update Troubleshooting Ignition Starting and Charging Systems 1991Update Carburetor Problem Solving Chart page 10 1991Update Troubleshooting Governor Systems 1993 Update Float Style Carburetor Leakage page 27 1994 Update Troubleshooting Ignition Tester DC Shunt Leakdown Tester 1995 Update Troubleshooting Carburetors 1996 Update OHV Gasket Chart V Twin OHV Gasket Chart Alternator Chart Air Filter Charts 2 Handy Repair Check Chart Single Cylinder L Head Gasket Chart Opposed Twin Gasket Chart Single Cylinder L Head Engine MANUAL Opposed Twin Engine MANUAL Description from TECUMSEH Source 143 Training amp Ref Mtl order D92 192 3 to 10 HP 4 Cycle L Head Engine MANUAL 8 to 18 HP Cast iron Engine MANUAL PEERLESS PowerTrain Components MANUAL 4 Cycle Overhead Valve Engines MANUAL Carburetor Troubleshooting Booklet 4 Cycle Engine Failure Analysis Booklet Quick Reference Chart Booklet Special Tools Booklet Description from KOHLER Source 501 Training amp Re
70. RS REMOVE NECESSARY WASHERS FROM THE RIGHT SIDE ONLY 2 REPLACE THE GROUND DRIVE SPRING PART 138364 WITH NEW HIGHER TENSION SPRING PART 71 917 149412 3 REMOVE CLUTCH ARM AND LUBRICATE THE IDLER BEARING PART 71 917 105706 WITH ANTI SEIZE REASSEMBLE AND VERIFY CLUTCH ARM IS MOVING FREELY IF STEPS 1 THROUGH 3 DO NOT CORRECT THE INSUFFICIENT GROUND DRIVE CONDI TION REFER TO SERVICE FLASH ON GT HYDRO TRANSAXLE OIL FILTER CHANGE CHANGE OIL WITH SYNTHETIC 1 15W50 MOBIL 1 ENGINE OIL NOTE TRACTORS OPERATING IN COLD CONDITIONS BELOW 10 F CHANGE OIL USING SYNTHETIC 5W30 MOBIL 1 ENGINE OIL GT Hydro s foot brake pedal shaft binding on unit built before July 31 1995 Solution Foot brake pedal shaft should have a total of 4 washers only The washer may be on either end of shaft Remove excess washer from right side of shaft Install tension spring 149412 FOOT BRAKE SHAFT MAY OR MAY NOT HAVE PEDAL SHAFT WASHERS AL LEFT SIDE OF TRACTOR d RIGHT SIDE OF TRACTOR Ht www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TRACTOR FRAME SECTION CLUTCH BRAKE KIT FRONT SUSPENSION KIT FRAME KIT Steering bellcrank bushing kit 71 917 140342 1 LOOSEN FOUR BOLTS HOLDING THE FRONT AXLE BRACES ON RIGHT HAND SIDE OF THE TRACTOR ITEM 1 DO NOT LOOSEN BOLT ITEM 2 2 USING CHANNEL LOCKS SQUEEZE THE AXLE BRACES ITEM 3 TOGETHER AS SHOWN IN FIG 1
71. Recommended for D 71 road technicians Using pail and pump it is possible to install sealant without fully deflating tires The pump is pur chased seperately and is required to install pneumaseal from the 5 gallon pail Order Information See Tips bulletin board D92 150 Part QE 6 TINY TACH Sy D92 150 P N DS 100 ue orum for proper factory carb adjustment Maintains safe RPM for PRO CPSC compliance Required for 1995 C A R B standard tune up D92 150 Part 2CRWC 120 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Div Src 92 309 92 309 92 309 92 309 92 9 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 92 309 Div Src 92 192 71 500 71 500 92 192 92 192 SPECIALTY TOOLS AND TEST EQUIPMENT HAND TOOLS AND SUPPLIES FOR ON SITE TECHNICIANS Part No 9 800130 9 44664 9 46802 9 46803 9 AL56161 9 38464 9 38126 9 38112 9 45076 9 11189 9 18503 9 44565 9 44202 9 LB11 220 9 42024 9 47725 9 18579 9 LB11145 9 3559 BH10633 9 WR415 9 45964 9 NF04927 9 82558 9 4196 9 KD3082 9 30842 9 4301 9 42892 9 41144 9 34790 9 34789 9 34788 9 6513 9 34323 9 3669 9 49661 9 49671 Part No 144334 100032 100033 144335 100035 Hand Tools Description Tool
72. SYSTEM OUTPUT 15 AMP OC 3600 RPM PURPLE YOUR THACTOR 15 EQUIPPED WITH A SPECIAL ALTERNATOR SYSTEM THE LIGHTS ARE NOT CONNECTED TO THE RELAY HEADLIGHTS Geo BATTERY BUT HAVE THEIR OWN ELECTRICAL SOURCE PTO SWITCH BECAUSE OF THIS THE Bae ANGE WITHENGINE TCH WI CHA ewe SPEED AT IDLE THE LIGHTS IG F B EAD I WILL DIM AS THE ENGINE IS DA ore lose tT None SPEEDED UP THE LIGHTS WILL BECOME THEIR BRIGHTEST REMOVABLE NON REMOVABLE B L NONE CONNECTIONS CONNECTIONS 5 _ 1 8 ENGINE CONNECTOR TRACTOR CONNECTOR WIRING INSULATED CLIPS REGULATOR ENGINE ee ENGINES BATTERY NOS WERE REMOVED FOR RED WIRE HIE WIRE SHORTING RED WIRE SHOULD BE REPLACED TO SOLENOID OIL SENTRY SWITCHED PROPERLY SECURE YOUR RED WIRE OILSEMTRY vetLOW WIRE BLUE WIRE WIRING BLUE WIRE GREEN WIRE m LIGHT 73 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HARNESS 160732 OPERATOR PRESENCE SYSTEM B TO SOLENOID BATTERY 224 RED 4279 e 6B RED TO CHASSIS GROUND TO AMMETER R a 23A BLACK WJ N BLACK 13B SN TO SOLENOID COIL BLACK 3B TO SOLENOID GROUND ip eJ TO OPC RELAY BLACK vB WHITE TO LIFT KIT WIRING OD BLACK BLACK 26 10B RED BLACK 218 T 11 RED 7A GREEN RED i15A TO FUSEHOLDER BLACK 268 7B BLACK O CLUTCH INTERLOCK WHITE 6B e E 2 WHITE 74
73. T 148706 FUSE AUTOMOTIVE TYPE 30 AMP CONNECTOR SEAT SWITCH ORDER PART 148698 ORDER PART 148707 H8 TERMINAL RING CONNECTOR MAIN 6 GAGE COMM HARNESS ORDER PART 148699 ORDER PART 148708 CONNECTOR IGNITION CONNECTOR ELEC CLUTCH SWITCH CLUTCH SIDE ORDER PART 148700 ORDER PART 148709 CONNECTOR INTERLOCK LIGHT SOCKET DOUBLE POLE SNAP IN 51 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 USE OF THE 150834 JUMPER DIAGNOSIS KIT 6 PURPOSE Instructions on use of the 150834 Jumper Diagnosis Kit for simple troubleshooting of the circuits for starting the tractor KIT CONTAINS 1 EACH OF Battery Ground Solenoid Bypass Cable Circuit Breaker Test Unit Flat Blade Bypass Jumper Alligator Clip Bypass Jumper INFORMATION It is IMPORTANT before attempting any tests described to do the following 1 Lock the Clutch Brake Pedal in the PARK position 2 Verify the mower Blade Engagement is OFF 3 Verify the battery is good and charged at 12 2 DC Volts or higher or for testing install a known good battery that is charged 4 Place the Ignition Switch in the ON or Run position 5 Tractors equipped with a carburetor solenoid may not run during these procedures If the engine turns over cranks the purpose of the test has been complete
74. TCH ROD ASSY To tighten a loose belt turn the clutch rod trunion out counter clockwise A Clutch Rod Length 38 clutch rod 10 00 42 clutch rod 10 40 46 clutch rod 9 38 FIG 2 34 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 IDLER ELECTRIC PULLEYS CLUTCH MANDREL PULLEY MANDREL PULLEY MANDREL PULLEY IDLER PULLEY RETAINER CLUTCH ROD SPRING SUSPENSION POLLEN ARMS RETAINER SPRING ANTI SWAY BAR RETAINER SPRINGS BOTH SIDES 35 42 mower deck 1992 TO 1993 OLD STYLE ARCH SUSPENSION TEE PATH BELT ROUTE WITH TWO IDLER PULLEY USE DECK BELT 71 917 130969 SIZE 1 2 X 11 32 X 92 41 42 mower deck 1994 NEW STYLE SUSPEN SION TRI PATH BELT ROUTE WITH ONLY ONE IDLER PULLEY USE DECK BELT 71 917 140067 SIZE 1 2 X 11 32 X 86 62 EA er QU xS 42 mower deck 1995 to 1998 NEW STYLE SUSPENSION TEE PATH BELT ROUTE WITH TWO IDLER PULLEY USE DECK BELT 71 917 144200 SIZE 1 2 X 3 8 X 88 38 TRACTOR WITH 42 DECK BUILT FROM 1992 THRU 1994 THAT REQUIRE THE DECK HOUSING TO BE REPLACED WILL BE UPDATED WITH OUR CURRENT 42 BELT 144200 WHICH IS SUPPLIED IN THE HOUSING KIT www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 sure ALL safety devices belt guards mower deflector shields mower mandrel guards the Operator Presence System electrical harnesses and interlock swi
75. The wires going to the seat switch in this system are green Trace through the schematic In the position the Ignition Switch connects terminals from the battery to L for the light and charging circuit In some harnesses the circuit from the L terminal is tied to the circuit from the A terminal Current flows from the Ignition Switch to the Seat Switch When the seat switch is closed the Operator Presence Relay is energized In this position the Electric Clutch circuit is completed from Terminals 87 to 30 in the relay When the operator gets off the seat the Operator Presence Relay is disengaged connecting Terminals 87A to 30 When 87A is connected to 30 the engine ignition can be grounded through either the Clutch Brake Switch or the PTO Switch for the mower deck The engine and blades stop within 5 seconds aum Ille BLACK BATTERY SOLENOID FUSE 30 AMP WHITE IwHTE 201 icy plc Fu Eu cu per l 1 5 9 E ps L 5 O PEDALUP 7 3 x IGNITION MM 3 SWITCH gy as 1 85 86 DISENGAGED 9 ET eu n GREEN i TS OPERATOR Q O HE PRESENCE RELAY 1 SEAT SWITCH BLACK NOT OCCUPIED mp SPARK PLUGS MEA O 2 PLUGS ON TWIN CYL ENGINES 65 www mymowerparts com For Husqvarna Parts
76. all right and left inner Side Shields and tighten nuts 11 Install right and left outer Side Shields 12 Install both Wheel Assembles 13 Lift up and slide Depth Stake into slot in transmission Secure Depth Stake with Bolt Nut and Rubber Tip Adjust to lowest position On DRT models install both depth stakes at the same time 118 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 RELOCATE THE CLUTCH CONTROL CABLE ON THE TOP OF THE TILLER TRANSMISSION SEE FIG 1 AND MOVE THE CONTROL CABLE SPRING ON THE IDLER BRACKET FROM NUMBER ONE LOCATION TO NUMBER TWO LOCATION SEE FIG 2 CHECK SPRING EX TENSION FOR PROPER BELT TENSION SEE OWNERS MANUAL FOR DETAILS FRONT OF TILLER DRIVE CONTROL CABLE A NEW POSITION CLIP B OLD POSITION IDLER BRACKET IDLER PULLEY FiG 2 FIG 119 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 PNEUMASEAL TIRE CHANGER Changes tires in minutes Lawn or Garden tires on 4 to 12 rims Includes Carry Bag Order Information 10 OZ CAULKING TUBE D92 150 Part QE 10 92 192 P N 144334 PULLER FOR REAR WHEELS _ AND ENGINE STACK PULLEY Designed to install quickly and easily in to all tires Order Information See Tips bulletin board 092 150 Part QE 3 STRAP WRENCH FOR ENGINE STACK PULLEY PUMP FOR PAIL 92 192 P N 100035 5 GALLON PAIL 92 192 P N 144335
77. all wiring Be certain all ignition related wires are connected including the spark plug leads Be certain all terminal connections fit snugly Make sure the ignition switch is in the run position NOTE The CD ignition systems are sensitive to excessive load on the kill lead If a customer complains of hard starting low power or misfire under load it may be due to excessive draw on the kill circuit Disconnect any auxiliary kill wires or interlock switches connected to the kill circuit and operate the engine to determine if the reported problem is gone NOTE The spark advance module SAM used with Smart Spark requires an external power source of at least 7 volts DC If you are installing a replacement battery on a unit that has an engine with Smart Spark be certain the battery is fully charged before attempting to start the engine Testing Of CD Ignition Systems The following procedures are provided for troubleshooting CD ignition problems on Command engines They will allow you to isolate and pinpoint the failed component s For engines with the standard fixed timing CD system C17 20 disregard procedure 3 and use only steps 1 4 in proce dure 1 For CV16 engines disregard all references to opposite second spark plug or cylinder Three types of ignition problems have been identified 1 No fire 2 Intermittent fire 3 Incorrect timing or advance Separate troubleshooting procedures are provided for each type of problem Perf
78. an OEM v belt in a place other than its designated application There are different belt cords that can be used The is cord selected for the load or force the v belt will transfer in a specific application Kevlar is the strongest cord which will normally be a Yellow color Kevlar is by weight stronger than steel and will not stretch It is widely used in products that require strength and light weight such as bullet proof vests 42 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Fiberglass cord may be used where the maximum strength will not be needed but without stretch The fiberglass cord will be a reddish brown on source 917 tractors Polyester filament cord may be used where there should be a moderate force The Polyester fila ment is dyed and may be different colors from different manufacturers On source 917 tractors and tillers the Polyester filament is a cream white color Polyester filament cords will shrink if they get hot and can stretch Polyester is a good shock absorber and may be used in applications where there are high shock loads and length stability is not critical Polyester staple cord or rayon cord are used in lesser quality v belts and are often found in after market belts These cords are not used on source 917 tractors The v belt cover must also be matched to the application A White Cover is specified for increased slippage or less front end lift off wheelies The White Cover
79. and check the wires and connections between the SAM and modules If the wiring and connections are good replace the SAM 5 If the modules are firing and advancing properly but the engine still acts like it s out of time make the following checks on the flywheel a Check the two magnets on the outside of the flywheel for equal charge by comparing magnetic pull with a steel rule or small screwdriver If a significant difference is noted replace the flywheel b Remove the flywheel and check for a sheared key NOTE If the engine starts or runs during any of the testing you may need to ground the kill lead to shut it down Because you have interrupted the kill circuit it may not stop with the switch Reinstall the kill lead into the connector when the ignition problem has been diagnosed and cor rected If your testing has not revealed a problem with the ignition system refer to Section 3 in the appropriate KOLHER service manual and troubleshoot other possibilities 115 www mymowerparts com TILLER TROUBLESHOOTING For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Symptom Engine runs but tiller won t move Tiller transmission hard to shift or won t go into gear Tiller moves but tine won t turn What should you do before you replace a transmission on a CRT Counter Rotating Tiller Verify the shift indicator roll pin is installed connecting the shift lever to the shift arm on the transmission The transmission won t shift
80. ap between the two connections to forma a solid bridge of compound and prevent any possibility of arcing between them Do not put any compound inside the connectors 6 Check for spark on both cylinders with ignition tester 92 150 24 455 02 If spark is good reinstall the blower housing 7 Test run the unit and check if any misfire is still present 112 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Ignition Failures on KOHLER 22HP and 25 HP Command Engines There have been reports that engine ignition has no spark while cranking but when the key is released one spark is noticed The tendency has been to replace the SAM first and if that does not correct the problem the SAM and both ignition modules are changed Most of these reports can be traced to one faulty ignition module and many parts are being changed unnecessarily Depending on the failure mode a faulty ignition module can pull down the entire system and prevent both sides from firing If you encounter the above symptoms test the system as follows Test Conclusion 1 Remove the blower housing and disconnect 1 If either module had spark that module and the yellow and brown leads from one ignition the SAM are working Perform step 2 on any module Test for spark on the other module ignition module that did not have spark with tester 24 455 02 Reverse the test procedure 2 Disconnect the yellow lead and test resistance 2 Resistance shoul
81. be stale and make an engine hard to start after only 30 days of storage Verify that choke is operating properly 5 Good Fuel still won t start Check fuel delivery system to ensure fuel is making it to the carburetor Clamp off fuel line and check for clogged fuel lines no air getting into tank plugged fuel filter plugged or restricted fuel tank screen etc Listen for audible click of afterfire solenoid if equipped opening and closing when ignition is turned on and off If no click is heard remove solenoid from carburetor and clean plunger with carb cleaner by spraying while moving plunger up and down Make sure solenoid is grounded and check for 12 volts 7 9 volts minimum for Kohler engines If solenoid is still inoperative replace solenoid 6 Fuel to carburetor still won t start Remove air filter and spray WD40 into the air intake of the carburetor Reinstall air filter and try to start If engine runs for a short time and then dies remove and inspect the carburetor bowl If you find brown gummy deposits oil or water clean the carburetor If green particles or white deposits are found or if bowl is heavily gummed up replace the carburetor 7 Dirty Air Filter Clean foam element of air cleaner if equipped by washing it with soap and water Dry off element and add one tablespoon of 30 weight motor oil to the element A small amount of oil on the foam element will trap dirt before it gets to the paper air fi
82. ce a good spark but an out of kilter timing will cause the engine to run rough or not start at all 11 Test ignition module Disconect the kill tab from ground on the ignition module If you still get no spark replace the ignition module See pages 39 40 12 Test ignition module on Kohler engines The ignition system on the Kohler Command 22 25 HP will not operate properly without at least 7 volts and will not operate at all with no voltage If you have proper voltage and tight connections and both spark plugs fail to fire then replace the S A M Speed Advanced Module If just one spark plug fails to fire then replace that coil only IMPORTANT Cranking the Command 22 25 HP engines without grounding the spark plug will damage the module and or S A M in a very short time Seepages 40 41 98 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Afterfire occurs when the ignition switch is turned to the off position and the engine is coasting to a stop During this coasting time air and fuel are drawn into the com bustion chamber Because there is no ignition to burn this charge it is pushed into the muffler The high temperature of the muffler may ignite this charge causing a loud noise Some carburetors have a anti afterfire solenoid and others do not each system has a different procedure to stop the engine and reduce the chance of afterfire HOW TO REDUCE ENGINE AFTERFIRE Engines With Anti
83. charging system ignition spark plug throttle amp choke controls clean engine cooling fins replace air filter change oil oil filter and fuel filter Check amp adjust tires for proper inflation Lubricate moving parts steering linkage and grease all fittings Test overall operation of equipment and ensure that all safety features are operating properly Check electrical system and clean battery terminals Sharpen or replace cutting blades Check blade mounting bolt Torque with Torque wrench 30 to 35 ft Ibs Check and adjust brakes amp do brake test See brake adjustment section for brake test Compliance check operator present system and blade brake system blades stop within 5 seconds when disengaged Check belts amp pulleys Adjust guage wheels off of ground Check deck rake and level Tillers Remove fuel from tank amp bowl Tune engine Check rpm engine speed Ignition carburetor clean or replace air filter and change oil Lubricate moving parts pivot point and cable Inspect adjust or replace as needed all belts and chains as applicable Test overall operation of equipment and ensure that all safety features are fully operational Snow Throwers PREVENT OIL FROM SPILLING ALL OVER THE WHEN CHANGING FILTER POKING A HOLE INTHETOPOFTHEFILTERWILL VENTSYSTEM AND ALLOW OIL TO DRAIN OUT THROUGH ENGINE SUMP Tune engine Check rpm engine speed Ignition system carburetor battery replace spark
84. chometer 3500 Place meter on D C Voltage scale 15 volts or higher Attach the meter test leads to the battery like in Open Circuit Voltage Test If voltage when the engine is running at full speed exceeds voltage when the engine is off Open Circuit Voltage and if the voltage exceeds 12 6 and is rising after 1 minute the charging system is good Additional diagnostic information on engine charging systems is in last years book BACK TO BASICS I 48 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 BATTERY RECYCLING Why Recycle batteries Many batteries are replaced so the service call can be completed Most replaced batteries are only discharged and only need a good charging to be serviceable Why throw away functional parts that can be recycled Recycled batteries can be used on MA calls and can reduce parts costs to your service center Battery plates are made from lead alloy Lead is toxic Recycling batteries reduces environmental pollution PROCEDURES FOR RECYCLING BATTERIES Wear protective equipment when working with batteries Gogglesorglasses with face shield should be used to protect eyes anytime you are handling batteries A plastic apron or lab coat will protect your clothes Rubber gloves should be worn when handling batteries 1 Do a visual check of the battery case and the battery terminals for damage If damage is found dispose of the battery following E P A regulations
85. crew will tell 2 Becertain the drive components are installed in you when the retaining ring has popped out of the correct sequence onto the armature shaft groove in the armature shaft 3 Slip the tool over the end of the armature shaft so the retaining ring inside is resting on the end of the shaft Hold the with one hand exerting slight pressure toward the starter Tap the top of the tool with a hammer until you feel the retaining ring snap into the groove Disassemble and remove the tool 4 Pinch the retaining ring with a pliers to compress it in the groove 5 Pullthe spring retainer up around the retaining ring so the ring is seated in the recess in the top of the retainer see Figure 1 sectional inset 6 Reinstall the dust cover Figure 3 Holding Tool and Turning Center Screw Clockwise to Remove Retaining Ring 5 Remove the drive components from the armature shaft paying attention to the sequence If the splines are dirty clean them with solvent 7 The splines should have a light film of lubricant Relubricate as necessary with Kohler bendix starter lubricant 92 192 52 357 01 Reinstall or replace the drive components assembling them in the same sequence as they were removed 94 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TESTING FUEL PUMPS Test for fuel delivery to the pump Before proceeding be sure the fuel tank has clean fresh fuel and fuel cap vent
86. current flows through the Ammeter Check to see if both wires are hooked up to the Am meter Ifthe Ammeter is known to operate backwards reverse the wires on the back Ignition Switch in Start position In the Start position the ignition switch will send current out the S terminal and depending on the model L terminal The Ignition Switch can be tested for continuity or for resistance In the Start position check continuity between contacts 57 and L Check legend of the ignition switch on the electrical schematic for the correct path Clutch Brake Switch This switch is closed when the foot pedal is depressed to complete its portion of the start circuit 59 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Attachment Interlock or PTO Switch The Attachment Interlock Switch on manual engagement models and the PTO Switch on electric clutch models will only be closed to complete the start circuit if the mower is disengaged Solenoid If all the above connections are made the solenoid is now actuated This closes the contacts between the posts on the solenoid for the heavy current to pass to the engine starter motor Engine Starter Motor The Engine Starter Motor needs to spin the crankshaft at more than 400 rpm to generate enough voltage or current through the magneto coil to fire the spark plugs A battery that is low on charge may not allow the engine to spin
87. d 6 This Schematic will help you trace the circuits as we go through the procedures PROCEDURE 1 Check the fuse Remove it from the holder and check visually If the fuse is bad replace the 30 Amp Fuse and test crank the engine If the engine fails to crank or the fuse was good replace it with the CIRCUIT BREAKER TEST UNIT in the fuse holder as shown in Figure 1 2 Test the Engine Starter Motor Install the heavy duty Battery Ground Solenoid By Pass Cable from the engine Starter Motor Electrical Post to the HOT post of the Solenoid If the starter motor cranks we know the starter motor is good for this test If the Starter Motor does not crank install the Battery Ground Solenoid By Pass Cable from the engine Starter Motor Electrical Post and the Positive Post of the Battery If it still does not work remove the spark plug and cover the hole actuate the starter motor as before If it does not work check the Battery Ground and the Battery The Starter Motor must work before going to Procedure f 3 52 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 SCHEMATIC T STARTER FUSE HOLDER IGNITION SWITCH ORANGE or BROWN RED amp M BLACK S WHITE e iex LY ORANGE or BROWN G BLACK L RED or BLUE RED 3 M BLACK 1
88. d be 900 1000 ohms If resis from the narrow terminal to the laminations tance is below 300 ohms module is definitely with a good digital ohmmeter faulty and must be replaced If neither module had spark but the resistance on both is good refer to previous section on Intermittent Spark Remove graphite insulator washers described in the next section Remove Ignition Module Insulator Washer 24 468 12 A graphite insulator washer part number 24 468 12 was being used between the ignition modules and the mounting bosses on Command 22 and 25 HP engines Following further testing and evalua tion the washer has been discontinued effective at serial number 2629700007 Ignition module kit 24 757 23 was implemented for servicing engines with the insulator washers Due to the preseason order program there is a substantial quantity of the kits in the field When using one of these kits use only the ignition module Discard the screws and washers and disregard steps 9 and 20 of the instruction sheet TT436 A Remove and discard all old graphite washers from the engine before mounting the new module including those behind the other ignition module that hasn t failed Upon depletion of stock the kit will supercede back to bare ignition module 24 584 03 113 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Procedure 3 Incorrect Timing or Advance If incorrect timing or advance is suspected a timing light tes
89. d has polyester cords Lawn and Garden aftermarket replacement v belts normally have kevlar cords and an aggressive v belt cover These v belts may or may not give a good service life The aggressive v belt cover will usually grab in the drive system This may result in front end lift off wheelies or may result in the drive pulley burning a section of the drive cover off The aftermarket v belts are normally found in one inch increments If a v belt is too long it s life is shortened If the aftermarket v belt is too short the v belt may not declutch when needed Agricultural aftermarket replacement v belts are similar to the Lawn and Garden replacement v belts but with larger cross section and are designed for larger pulley diameters F H P uses only OEM v belts which have the correct length v belt cover and cord construction The correct length maximizes the service life of the v belt The v belt cover specified gives the slippage or traction required for the drive The v belt cords are appropriate for the force the v belt will transfer and the shock loads expected How are OEM v belts customized OEM v belts are designed for that specific drive application Many things can be changed The v belt is a wedge The power is transmitted through the angled sides of the v belt The angle of the side walls is different on some OEM v belts This is done to achieve a desired drive characteristic For this reason it is not a good idea to use
90. e Seat Switch When either of these conditions are met and the Ignition Switch is in the Start or and Lights position The Operator Presence Relay is energized opening the contacts that otherwise would kill the engine ignition system The Fuel Shut off Solenoid is energized letting fuel into the carburetor 1ED BLACK BATTERY SOLENOID FUSE 30 AMP CLUTCH BRAKE PEDAL UP i e ATTMENT CLUT ATT MENT CLUTCH IGNITION 4 CLUTCH OFF SWITCH E 1 1 GREEN FUEL SHUT OFF SOLENOID SEAT SWITCH NOT OCCUPIED S BLACK BLACK gt AALT OPERATOR PRESENCE RELAY 1 SPARK PLUG GAP 2 PLUGS ON BLACK TWIN CYL ENGINES 67 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 OPERATOR PRESENCE SYSTEM E System E will be used on Source 917 tractors with a Battery Ignition engine like a car engine ignition Currently a tractor with a Kawasaki 18 HP Liquid Cooled Engine will be available This engine has a Positive BATTERY IGNITION instead of a magneto ignition Electrical current from the battery powers a battery ignition To stop an engine with Battery Ignition a contact is broken that supplies current from the battery to the ignition system In the past we had a different Ignition Switch that was open in the Off position With
91. e and has no effect on the idle characteristics of the engine Hunting and Surging at Governed Idle An engine hunting and surging only at governed idle and equipped with an idle mixture adjust ment has a governor system or carburetor problem The idle mixture must be adjusted correctly Hold the throttle plate linkage against the idle speed adjusting screw and increase the idle speed to the specified governed idle speed If the engine operates without hunting or surging the problem is the governed idle spring or linkage If the engine continues to hunt and surge the problem is in the carburetor After testing return the engine to the correct idle speed Hunting and Surging at Top No Load Speed Troubleshoot hunting and surging at top no load speed using the same sequential steps used to isolate a governor system or carburetor problem during true idle and governed idle Once the idle mixture is adjusted and the engine idles smoothly increase the engine speed using the idle speed adjusting screw Hold the throttle plate linkage against the idle speed adjusting screw until the engine reaches the specified top no load speed Without any appreciable load fuel is provided by the idle circuit If the engine continues to hunt and surge the carburetor is the probable cause In this test condition the governor system has no effect on engine speed The idle speed adjusting screw controls the throttle plate position which affects engine speed If the engi
92. e aren t asking that you write an extensive description just why you did what you did 7 Emissions warranty states that the diagnosis parts and labor are covered for two years Does this include only the diagnosis needed to find a failed emissions related part from the list or does this include all diagnosis for the entire engine product A7 Only the diagnosis to find the failed emission warranted part is included in the emission warranty Other diagnosis is separate and should be handled just as you do now Q8 Can the customer request that a part be sent to their home for self installation under the emission warranty or can the customer receive a free part over the counter A8 No The product must be diagnosed and repaired by a technician to be covered under the emission warranty Q9 If a service bulletin or service flash states to replace an emissions part with another part number not originally found on the product what is the right thing to do A9 It is Sears policy to follow manufacturer s recommendations for repair procedures By following the manufacturer s bulletin or issuing our service flash we are following their recom mended repair procedure including part substitutions approved by the engine manufacturer 87 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 SERVICE TIP IGNITION SYSTEM TESTING In the early 1980s when Solid State Ignition replaced the breaker point styl
93. e checked for diagnostic purposes The first is the pump and motor expansion bellows With a small diameter blunt or round nose probe check the bellows depth through the center vent hole Proper depth from the edge of that hole is 3 1 4 3 1 2 inches 8 25 8 9 cm The second chamber is for the output gears including the differential FIRST make sure the tractor is level then remove the drain fill plug NOTE Some units that do not have differential disconnect will have two plugs We recommend using only the primary plug With a small pocket rule insert until you touch bottom of case You can then remove it and check for 1 4 3 8 inches 6 5 9 5 mm contact This is full at its 8 oz capacity of SAE EP 80W90 oil 4 Low ground speed If the linkage is not synchronized to absolute neutral or the shift lever is not properly fastened to the tapered control shaft full forward travel may not be achieved This may cause a false reading and be misdiagnosed as a low power condition This also could be caused by the brake not releasing To detemmine absolute neutral the hole in the tapered control shaft must face straight up and down at this point make sure the OEM linkage is in neutral To properly fasten the control lever to the shaft torque the nut to 25 35 ft Ibs 34 48 3 NM of torque with the shaft and the lever in neutral When attaching the shifter arm to the shaft you must prevent any rotation during torquing This can be done by placin
94. e ignition systems air cooled engines the subject of ignition gained an air of mystery The working reality is anything but mysterious It s easier to understand once you have a few handy tips plus a bit of background on the topic First the background Ina point style system the flywheel magnets rotate past the legs of the ignition armature The armature itself is made up of two separate windings of copper wire the primary and secondary one wound on top of the other Add a set of breaker points and a condenser to the primary circuit and you ve got the whole ball of wax Basic physics tells us that when a magnetic field flywheel magnet cuts through moves past a conductor copper wire a flow of electrons electricity is created However electron flow only occurs when we have a complete circuit This means that the points must be closed It s also a fact that the faster the movement between the field and the conductor the greater the output Remember science class in grade school At one point in your school career an enterprising teacher wrapped a length of copper wire around a nail and hooked the wire ends to a drycell battery A handful of paper clips was instantly attracted tothenailandfellaway when the battery was disconnected Electron flow through a conductor then causes a magnetic field When the points are closed electron flow through the primary causes a magnetic field to be created around it This field also envelopes the seco
95. e it mandatory for the operator presence system to stop mower blade in five 5 seconds or less For clarity in this discussion we will label these systems with letters System will be used on tractors with a manual mower clutch unless that tractor has a Kohler Command Single cylinder engine System is the same system all Source 917 tractors have had since January 1995 This system similar to the Operator Presence Systems back to 1987 System B will be used on most Source 917 tractors with an Electric Clutch for mower engage ment and a Magneto Ignition This system will have one 1 relay in the operator presence circuit System C will be used on tractors with a Kohler Command Single Cylinder engine and manual mower engagement This system will have two 2 relays The Kohler Command Single Cylinder engine may have a STATOR BRAKE There will also be a System D and a System E System will be used when engines have a BATTERY IGNITION Chart for Operator Presence Systems stem System System C System System Magneto Ignition Yes Yes Ys Battery Ignition pi M Manual Engagement e Ye Electric Clutch KOHLER Command Singe Ye Ye Ye StatorBrake SP Ye _ WefeeSema ac There will be different interlock switches in these systems You will need t
96. e the collar Retainer c4 Retainer Ring over the inner halves to hold them in positicn O Anti Drift 947 Sprin 22 Dust Cover Spacer e Drive Pinion Figure 1 Drive Components UTE Bonded Inertia Drive Starter Drive Nut Collar Figure 2 Assembling Inner Half of Tool Around Armature Shaft and Retaining Ring of the Year Starter Snap Ring Kit 92 150 25 761 18 The drive components on the current inertia drive starters are held in position by a snap ring that fits in a groove near the end of the armature shaft Because the ring is partially recessed in the groove removal and reinstallation can be tricky and even hazardous Our Tool of the Year is a small kit that will do the job quickly easily and safely The snap ring is enclosed within the too during removal and or installation so there is no chance of it flying off and hitting someone or getting lost 93 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 5 Thread the center screw into the removal tool until Retaining Ring Installation you feel resistance Use a wrench 1 or 1 Position tne retaining ring in the groove in one of adjustable to hold the base of the removal tool the inner halves Assemble the other half over the Use another wrench or socket 1 2 or 13 mm to top and slide on the outer collar turn the center screw clockwise see Figure 3 The resistance against the center s
97. e the connectors and remove the white kill lead from the engine connector Rejoin the connectors and position or insulate the kill lead terminal so it cannot touch ground Try to start the engine to verify whether the reported problem is still present a If the problem is gone the electrical system on the unit is suspect Check the key switch wires connections safety interlocks etc b Ifthe problem persists follow the procedure that corresponds to the observed condition Leave the kill lead isolated until all testing is completed TINY TACH Required for proper factory carb adjustment Maintains safe RPM for PRO CPSC compliance Required for 1995 C A R B standard tune up and 1997 Federal E P A emissions 092 150 Part 2CRWC 90 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 DECARBONING ENGINE COMBUSTION CHAMBERS Why do engines need to have the combustion chambers cleaned on a regular basis a Carbon on the top of the piston and valves will hit the cylinder head b C d Build up of carbon reduces the amount of fuel and air that can enter the combustion chamber reducing power Reduced engine life from carbon damaging pistons rings valves and cylinder s By design OHV engines need to be decarboned less than side valve engines Carbon is a by product of burned fuel How quickly it needs to be removed from the combustion chamber depends on several factors a Adjustmen
98. ed while the flywheel is rotating the starter pinion and flywheel ring gear may clash resulting in damage to the starter If the starter does not turn the engine over shut off starter immediately Do not make further at tempts to start the engine until the condition is corrected Check the product Owners Manual to see if jump starting is suggested for this piece of equipment If acceptable follow Owners Manual instructions on jump starting a battery and follow all safety precautions 103 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 3 For a Cold Engine Gradually return the choke control to the off position after the engine starts and warms up The engine equipment may be operated during the warm up period butit may be necessary to leave the choke partially on until the engine warms up 4 For a Warm Engine Return choke to off position as soon as engine starts Engine Stopping 1 Remove the engine load by disengaging all attachments 2a For engines without a shutdown solenoid Move the throttle to the slow or low idle position Allow the engine to run at idle for 30 60 seconds then stop the engine 2b For engines equipped with a shutdown solenoid Position the throttle control somewhere between half and full throttle then stop the engine Addressing Smoking Engine Concerns Some reports have come in of engine smoking In many cases the root causes for the smoking are not accurately d
99. eed charging before use Open Circuit Voltage Test The Open Circuit Voltage Test will tell the state of charge of the battery A battery should have a state of charge of 50 percent 12 20 Volts for accurate troubleshooting Select the meter scale for DC Volts Connect the negative meter lead to the negative battery terminal and the positive lead to the positive battery terminal DC VOLTS If 11 7 Volts or less extensive charging required to recycle this battery replace battery If 12 2 Volts or less the battery charge is marginal charge at 6 to 10 amps or exchange the battery and save for recycling If 12 2 to 12 5 Volts battery is good additional charge helps If 12 6 Volts or above the battery is fully charged 46 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 CHECK BATTERY GROUND The battery must be grounded to the frame and the engine for electrical components and charging to work Place the ignition switch in off position Use a continuity tester or Meter on OHMs scale Test for the ground to frame Place one meter lead on negative battery terminal and the other on a known good ground to the frame If no continuity correct before proceeding Test for ground to engine Place one meter lead on negative battery terminal and the other on a good ground on the engine If no continuity correct before proceeding clean battery terminals and battery cable ends until metal is bright Coat
100. el hubs 5 Verify motion control linkage is secure all fastener are tight 6 Verify proper oil level in transmission remove oil level port plug and check oil level Oil should beatthe bottom of the plug hole but not running out 7 Verify parking brake arm releases 8 Test for system leaks fitting hoses seals ect see test procedures PARKING BRAKE The brake was factory set for specific running clearance between the disc and pucks of 0 020 Place a feeler gage between the disc and one puck if the clearance is not set properly remove the cotter pin retaining the castle nut and set the cor rect clearance by adjusting the castle nut accord ingly Reinstall the cotter pin Compliance brake test Check Brakes operation tractor at full speed in high gear must stop within six 6 feet or less on level ground INSERT 0 020 FEELER GAUGE LEFT SIDE VIEW Test Procedure for System Leaks 1 Remove vent from breather hose located at the rear tractor on top of the hydro transaxle 2 Apply 5 to a maximum of 10 psi air pressure to the hose RIGHT SIDE VIEW 3 If a leak is present a puddle of oil should begin to form under the transmission in less then 2 APPLY 5 TO 10 P S I OF AIR To TO THE BREATHER HOSE minutes Determine the origin of the leak 4 If no leaks are found change filter and oil 5 If leak is found repair or replace defective components 6 Check level and top off with recommended oil
101. ents Found engine locked Oil normal no external causes found Internal component failed Replaced engine and tested C Call closed as in warranty Note The cost of an engine replacement must be supported by what you have determined caused the failure Engine Replacement Other than catastrophic internal engine failures ordering a replacement engine is not always the solution Many perfectl Y good engines have been received and inspected at the Dallas Rebuilding facility Before replacing an engine check the following items first Complaint Noisy Disconnect belt s run engine with no load Ifanengineis noisy determine where noise is coming from If engine runs normally buthas a knock pull head s and check for carbon buildup os Oil Consumption Is it leaking or burning oil Check integrity of all seals and gaskets as described in the Troubleshooting section of this manual Ensure breather is operating properly Check condition of spark plug An oil fouled plug will indicate engine is burning oil Check oil type quality and quantity e Does the engine smoke If so is the smoke black white or blue Won t Run Locked Up e Disconnect belt s run engine with no load e Check external causes e Check starter drive to ensure it is not jammed in the flywheel 15 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 BRAKE ADJUSTMENTS BRAKE TEST A brake test should be perfor
102. eplace and adjust 3 Check oil level the 310 0500 and 310 0750 holds approximately 80 ounces of 20W50 SG CD grade oil or in cold weather 15W50 Mobil One synthetic oil is recommended To check oil level remove vent hose and fitting Put tape measure inside vent hole and measure oil level On model 310 0500 the oil should be between 1 25 and 2 00 from top of housing On model 310 0650 0750 the oil should be between 1 00 and 1 75 from top of housing To add oil remove vent hose and fitting Add 5 oil until proper oil level for either type transaxle is reached Note If oil level is found low find the cause of the problem check the input seals bypass seals and axle key If needed perform the pressure test to find the leak 4 If tractor still does not move check shift linkage to be sure the shift lever is fully actu ated 5 Check brake and verify that the brake is adjusted properly and the tractor freewheels when the transaxle is in the transport position TO ADD OIL Remove breather hose and fitting Add oil until proper oil level for transaxle type is reached OIL LEVEL ADD OIL HERE RULER OR TAPE MEASURE 24 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HOW TO ADJUST MOTION CONTROL LEVER ON VST PEERLESS HYDRO The motion control lever has been preset at the factory and adjustment should not be necessary If for any reason the motion control lever will not hold its position
103. etermined and hence the repairs attempted do not remedy the smoking problem When troubleshooting a smoking engine first determine what type of smoke it is fuel or oil If the smoke has a blue tinge it is caused by oil If the smoke is black or white in color it is caused by excess fuel Below is a list of checks to be used as a guide to help troubleshoot an engine reported to be smoking Addressing Smoking Engine Concerns Possible Fault Solon 1 Is the engine able to breathe properly Are the choke and throttle settings adjusted properly Fuel Related Smoking Problems Could the spark plug be fouling out Is there too much oil in the crankcase Does the crankcase have proper vacuum Are the drain back holes functioning properly Oil Related Smoking Problems Is the breather operating properly Check crankcase vacuum If vacuum is low disassemble engine as necessary to reach breather s 1 Check for a dirty or restricted air cleaner If it appears dirty replace it Check the choke and throttle settings in the engine manufacturers service information If the choke is not set correctly it may not fully disengage when the lever is pulled off of choke Also check the crankcase oil for fuel dilution On KOHLER engines use Throttle and Choke Installation and Adjustment Guide TP 2445 Check the spark plug s and replace if there is any suspension of fouling Chech the oil leve
104. f Mti order D92 192 Command Single Cylinder CV11 CV16 Service Manual Command Twin Cylinder CV18 CV25 Service Manual Magnum Twin Cylinder MV18 MV20 Service Manual Troubleshooting Flow Chart amp Guidebook General Maintenance Video An Ounce of Prevention Product Specifications Sales Brochure on Models Specifications amp Tollerances Wallchart Gaskets Wallchart Air Cleaner Elements Wallchart 10 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 IMPORTANT BOLT TORQUES 1 5 Mandrel amp Y EON Cum 9 Bolt Blade Bolt Mandrel Nut Electric Clutch Bolt Mechanical Clutch Bolt Engine Mounting Bolts Blade Bolt to 30 35 Ft Lbs Grade 5 Bolt Grade 5 Bolt Grade 5 Bolts Mandrel Nut to 55 65 Ft Torque to 50 Ft Lbs Torque to 35 Ft Lbs Torque to 35 Ft Lbs STANDARD TORQUE VALUES BOLTS SCREWS NUTS AND FASTENERS ASSEMBLED INTO CAST IRON OR STEEL Notes on Engine Pulley Bolts for KOHLER Command Single Cylinder Engines Replacement engines use metric engine pulley bolts 8 32 in Ib 25 in Ib 10 24 in Ib 40 in lb 10 32 in Ib 40 in lb 1 4 20 in ib 115 in Ib 1 4 28 in Ib 140 in Ib 5 16 18 in lb 250 i 5 16 24 in lb 270 i 3 8 16 in Ib 35 Original engines from AYP have SAE engine pulley bolts LT with manual deck engagement M747810100 Bolt 1 5THO x 100mm GR 10 9 71170784 Bolt 7 16 20 UNC x 4 GR 5 LT with electric clutch deck enga
105. follows Engage parking brake and place freewheel control in freewheel position Sit in seat start engine and move throttle control to slow position Put motion control lever in neutral N and slowly disengage clutch brake pedal e Move motion control lever to full forward position and hold for five 5 seconds Move lever to full reverse position and hold for five 5 seconds Repeat this procedure three 3 times 8 After purging the system of air andonce tractor has been running for one minute the oil level should be rechecked Remove oil drain port hole plug and add 2 to 4 ounces or more oil if needed Reinstall oil drain port hole plug and the vent cap to oil fill tube Refer to step 6 OIL LEVEL FREEWHEEL CONTROL OIL DRAIN SWIVEL PLUG BYPASS VALVE www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 HYDRO TRANSAXLES GT TROUBLESHOOTING Symptom Hydro Garden Tractor Won t Drive Trouble shooting Cold starting for hydro below 40 degrees F after starting engine and before driving let the transmission warm up for 1 minute by placing the motion control lever in neutral N position and releasing clutch brake pedal 1 Follow purge procedures described in step 7 on page 20 of this manual 2 Place free wheel control in the drive position 3 Check for proper installation and function of motion drive belt 4 Verify that the axle engagement key is in place both rear whe
106. g a long 5 16 bolt in the hole as shown in Illustration Hold the bolt until the tapers are locked and the nut torque is correct To make sure that the brake is not binding drive the unit up a slight grade Position the speed control lever into neutral The unit should coast backwards If the unit does not coast back slowly the brake is not released from the brake disk Adjust the brake linkage to release the brake com pletely when the foot pedal is released 5 Hard to shift Typically hard to shift symptoms are not caused PRODUCT CONTAINS PATENTED FEATURES by the hydrostatic unit The shift mann ines arm should move with relative gis eal ease Approximately 40 50 inch Ibs h er 4 48 5 6 NM at the transaxle for foot pedal units or 150 200 inch Ibs 16 8 22 4 NM for hand operated FOR OIL CHECK e So RE GUTO RIN units This varies depending on the e seuRECUTO NNG di type of linkage Binding may occur in the linkage connections due to rust or moisture Lubricating these connections and checking for bent or damaged parts should resolve hard shifting EXPANSION BELLOWS CHECK COLD FOR CORRECT DEPTH MODEL and SERIAL NUMBERS HERE NOTE The above illustration is of a foot control unit with differential disconnect Consult your parts list by model and specitication number to get correct parts for your unit ALL PARTS SHOWN MAY NOT BE ON YOUR UNIT 27 www mymowerparts com For Husq
107. ge load bringing load to full speed then disengage clutch 2 Let load come to a full stop then engage again 3 Repeat this 1 and 2 10 times After burnishing procedure is complete to maximize life of the clutch and the attachment belt always engage clutch at half throttle before raising to full engine speed 69 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Electrical System Diagnosis The most common electrical problem is to not have a ground If the battery is not grounded elec tricity will not be supplied to any component If the component is not grounded other electrical items will work but not that component Test the Battery Ground before doing the Component Ground Test Examples of Electrical Schemat ics each with an accompanied Wire Harness Layout can be found the next few pages Each sche matic will be for a different operator presence system Battery Ground Test Check voltage between battery posts it must be over 12 2 D C Volts Remove black battery cable from battery terminal and clean both the battery cable end and the battery terminal Turn the Ignition Switch to the Run or On position and turn the headlights on Place one probe from the meter on the battery terminal and the other probe on the black battery cable end The battery cable ground is good if the Voltage reading is close to the battery voltage reading taken earlier The battery is not grounded to the
108. gear if this roll pin is missing Verify that the drive engagement control is adjusted and working properly Verify that the drive belt is installed and adjusted Check to see that the rivet are installed through the wheel rim and the ground drive shaft Replace broken shear pin in the tine shaft TO REPLACE GROUND DRIVE BELT Remove belt guard Loosen belt guides and B and alsonuts C and Remove old belt by slipping from engine pulley first Place new belt in groove of transmission pulley and into engine pulley BELT MUST BEIN GROOVE ON TOP OF IDLER PULLEY NOTE POSITION OF BELT TO GUIDES Tighten belt guides and B and nuts C and Check belt adjustment as described below Replace belt guard Reposition wheel and replace clevis pin and hairpin clip Replace inner and outer side shields ENGINE PULLEY IDLER PULLEY TRANSMISSION PULLEY GROUND DRIVE BELT ADJUSTMENT For proper belt tension the extension spring should have about 5 8 inch stretch when drive control ar is in EN GAGED position This tension can be attained as follows Loosen cable clip screw securing the drive control cable Slide cable forward for less tension and rearward for more tension until about 5 8 inch stretch is obtained while the drive control bar is engaged Tighten cable clip screw securely SHIFT LEVER CABLE CLIP SCREW DRIVE CONTROL CABLE MORE TEN
109. gement M747810110 Bolt 1 5THD x 110mm GR 10 9 71170708 Bolt 7 18 20 UNC x 4 1 4 GRS Lawn Rider M747810075 Bolt 1 5THD 75mm GR 10 9 71170775 Bolt 7 18 20 UNC x 2 3 4 GR5 3 8 24 in Ib 40 7116 14 lb 55 ft Ib lb Bolts Screws Nuts and Fasteners 7 16 20 Ib 75 ft th tb Assembled into Aluminum 1 2 13 Ib 80 1 2 20 9 16 12 9 16 18 5 8 11 5 8 18 3 4 10 3 4 16 8 32 in Ib 20 in Ib 10 24 in Ib 32 in Ib 1 4 20 in Ib 70 in Ib 5 16 18 in Ib 150 in Ib 11 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 SAE VISCOSITY GRADES SNMP za ALL OTHER Engines Em DE NX 20 40 p 10 29000360 ap TEMPERATURE RANGE ANTICIPATED BEFORE NEXT CHANGE TECUMSEH ENGINES OEM PLUG GAP STDPLUG OILGRADE CAPACITY 3HP thru 6 2HP L Head and HTL Rota RJ19LM 030 PMA 30W 20 0Z 5HP thru 6 6HP Hi Torque Extruded Carb RJ19LM 030 PMA 30W 27 0Z 4 5HP OHV Rotary 6HP Slant Horizontal RN4C 030 30W 20 0Z 8HP 10HP Vertical L Head RJ17LM 0430 NONE 30W 32 0Z 12HP 12 5HP Vertical Stationary Cooling Air Inlet Screen RL86C 030 NONE 30W 32 0Z 12HP 12 5HP 16 5 Vertical w Rotating Cooling Air Inlet Screen 030 30W 32 0Z BRIGGS AND STRATTON 3HP 3 5HP Classic 4HP 5HP Quantum RJ19LM 030 PMA 30W 20 0Z 5HP Horizontal L Head RJ19LM 030 PM4 30W 20 0Z 8HP Hori
110. gnition module Flywheel assembly SERVICE TECHNICIAN S RESPONSIBILITIES The technician is required by Federal law to use ORIGINAL or APPROVED replacement parts any time emission related parts need to be replaced to assure that the engine will continue to meet the EPA emission standards The technician is required under Federal law to use unleaded regular or reformulated fuel only This is the same as required by auto regulations The engines are designed to meet the emission standards using these fuels only UN APPROVED add on or modified parts may not be used to modify or repair an emission com pliant engine Any deviation from as built production parts will be a direct violation of Fed eral Law and is subject to fine EMISSION COMPLIANT ENGINE IDENTIFICATION engines built for use in the U S A after September 1997 meeting the Federal EPA emission standards must be identified as such by the engine identification label This label is on the ENGINE on equipment such as rotary lawn mowers edgers and tillers On equipment that has an enclosed engine such as a lawn tractor the ID label will be on the engine but also an identification label outside the engine compartment if the engine label is not visible when the hood is opened 85 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 CUSTOMER RESPONSIBILITIES The customer is responsible for bringing the engine product to Sears Service for repair SHOP W
111. hat corresponds to the observed condi tion Leave the kill lead isolated until all testing is completed Procedure 1 No Fire If the engine turns over but will not fire follow this procedure 1 Disconnect one spark plug lead attach it to spark tester 24 455 02 and attach tester clip to a good ground DO NOT attach clip to spark plug 2 Crank the engine over and observe tester for spark 3 Repeat steps 1 and 2 on opposite cylinder 4 If spark is observed on only one cylinder replace the ignition module that did not have spark 5 If there is no spark on either cylinder one module may be failed and pulling down the entire system The SAM spark advance module may not be getting voltage or the SAM may be faulty Remove the blower housing and proceed as follows a Disconnect the yellow and brown leads from one ignition module and test for spark on the other module Reattach yellow and brown leads Repeat the test for the opposite ignition module If either module has spark that module and the SAM are working Replace the module that has no spark A faulty mod ule can be confirmed by doing a resistance test Disconnect the yellow and brown leads and test resistance from thenarrow terminal to the laminations with a good digital ohmmeter Resistance should be 900 1000 ohms If resis tance is below 300 ohms module is faulty and must be replaced If neither module has spark test resistance on both If resistance is good on both proceed
112. ickly troubleshoot carburetor problems re lated to a lean or rich condition After making carburetor adjustments slowly close the choke plate when the engine is operating poorly If performance improves the air fuel mixture is too lean If performance worsens the air fuel mixture is too rich A primer bulb system can also be used to test for a lean or rich condition Depressing the primer bulb injects extra gas into the carburetor If the engine air fuel mixture is too lean the injection of the extra fuel should improve engine perfor mance If the engine air fuel mixture is too rich the injection of the extra fuel should worsen engine performance 100 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TRACTOR OPERATING IN COLD CONDITIONS Fuel Pump Vacuum Line Freeze Model Series Vertical Crankshaft Opposed Twins Under certain climatic conditions condensation forming in the fuel pump vacuum line can freeze causing the engine to stop To prevent this from occuring insulate the pulse line with heat shield tubing part 71 500 280866 See procedure below 1 Cut section of heat shield tubing approximately 11 1 2 long 292 mm 2 Remove clamp and vacuum line at carburetor 3 Install tubing over vacuum line Push tubing over vacuum line until it contacts cylinder Note Be sure heat shield tubing does not interfere with governed idle spring 4 Reinstall vacuum line and clamp at carburetor
113. intermittent or lost spark on Command engines with the Smart Spark ignition system Our investigation has determined that the dielectric compound used to waterproof the terminal connections on the ignition modules may be a possible cause We have learned that the original dielectric material we were using can dry out and skin over from time and heat It then forms a dark varnish like coating on the terminals which can disrupt current flow across the connection In some cases excess compound got inside the shield of the female terminal further contributing to a potential problem If a situation is encountered involving inconsistent or disrupted spark proceed as follows 1 Remove the blower housing to access the ignition modules 2 Disconnect the brown and yellow leads from the modules and carefully inspect all of the termi nals both the male spade and female shielded portions 3 If a dark coating is observed clean each of the terminal connections thoroughly with cleaning solvent specified for electrical contacts A small wire brush can be used with the solvent to remove any remaining residue from the contact surfaces When clean blow the terminals dry with com pressed air 4 Reinstall the wires back onto their respective terminals 5 Use either Fel Pro Lubri Sel or GE Novaguard G661 Kohler Part 71 501 25 357 11 silicon dielec tric compound and carefully apply a bead around the base of each terminal connection The beads should overl
114. ion bracket repair kit 71 917 140243 for LT and YT Tractors 1 LT tractors the tractor clutch pedal gets hung up halfway and will not release causing customer to pull foot pedal back with his toe of shoe to engage drive belt Solution drop the tractor motion drive clutch idler assembly and lubricate the idler pin with grease If the welded pin is rust pitted you can replace with clutch bracket kit 71 917 137329 2 LT front suspension bracket that is welded to the front of the tractor frame gets twisted or bent from the customer hitting things Solution cut off welded front suspension brackets with a hack saw and install suspension bracket kit 71 917 140243 Condition LT frame cracked behind the axle saddle nose of tractor frame bent down Solution install kit 71 917 137797 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TRACTOR FRAME SECTION LEVEL FRAME HOOD KIT FOOT BRAKE PEDAL SHAFT BINDING Level tractor frame Hood weld breaks FRAME SLOPED HOOD REPAIR KIT TRANSAXLE MOUNTING BRACKETS EM THREAD ROLLING SCREW Hood not level on lawn tractor because frame is not level Solution loosen bolts on transaxle L shape mounting brackets lift rear of tractor up and down until tractor sits level retighten bolts 1 FOOT BRAKE PEDAL SHAFT SHOULD HAVE A TOTAL OF FOUR 4 WASHERS THE WASHERS MAY BE ON EITHER END OF SHAFT IF THERE ARE MORE THAN FOUR TOTAL WASHE
115. ion warranted part A6 With the appropriate in warranty call close code as you do now for other in warranty re pairs You must get the serial number of the product and be precise in your written comment on the service order This is no different than how you should be filling out service orders now Re member in many cases the service order is the only document that gives us the information about what you and what parts have failed This helps recover in warranty costs from the manu facturer and also helps us track any quality issues CLOSING THE SERVICE ORDER WITH GOOD COMMENTS For example if a carburetor had to be replaced because of a casting flaw that caused the air fuel ratio to be incorrect and you correctly diagnosed and replaced the carburetor but the service order had the following statement in the technician s comment section INCOMPLETE TECHNICIAN COMMENT REPLACED CARB AND TESTED Not descriptive enough if you had to work with the vendor to decide WHY the carburetor needed to be replaced With just a little more detail the following statement from you would tell us clearly what you found and why you replaced the carburetor GOOD COMPLETE TECHNICIAN COMMENT FOUND CARB CASTING DEFECT AT IDLE AIR BLEED REPLACED AND TESTED Just 7 more words make it clear to us and the vendor what you found This example is just one of many that helps all of us Realizing that productivity is key to our success w
116. is open TEST 1 Check for fuel flow to the pump A Remove fuel line fuel pump inlet B Use 590 1 Primer bulb and connect to fuel line at the fuel pump inlet side 1 Check for fuel pump operation A Connect can i e coffee can to catch fuel to fuel pump outlet Place can on front tire B Crank engine 15 seconds 95 RESULT 1 If fuel flows freely go to step 2 2 If fuel does not flow check the following a Fuel filter b Kinked fuel line c Fuel tank outlet restricted 1 Volume of fuel exceeds capacity of carb float bowl Pump is OK 2 Little or no fuel a Mechanical pump replace pump b Pulse pump Check pulse line if OK change pump Camshaft Fuel Pump Diaphragm Check Vaive MECHANICAL FUEL PUMP www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TROUBLESHOOTING BASICS The definition of a competent technician is one that can identify a problem quickly and accurately with efficient use of both time and parts This trouble shooting process when applied properly is the most valuable tool you possess The following process will help in quickly diagnosing a failed component 1 Talk to the customer if present Get a complete description of the complaint times the customers description will lead to the area of the failed component 2 Verify the symptom Operate the product to observe failure 3 Isolate the problem Use 4 of your 5 senses
117. itioned appropriately for each adjustment check towards outside for side to side check and front to back when checking rake Mower should be level side to side or within 1 8 of each other and have a slight rake angle front to back 1 8 to 1 2 lower in the front than in the rear optimum setting at 1 4 Make mower adjustment in the high cut position LEVEL DECK SIDE TO SIDE NOTE DECK SHOULD NOT GO LOWER THAN 1 1 2 AT BLADE TIPS IN LOW CUT POSI TION ADJUST THESE NUTS FOR SIDE TO SIDE LEVEL OF DECK BOTH FRONT LINKS MUST BE EQUAL IN LENGTH SIDE TO SIDE SHOULD BE SET LEVEL OR WITHIN 1 8 OF EACH OTHER SLIGHT RAKE ANGLE FRONT TO BACK i FRONT OF TRACTOR ADJUSTING LINKS TO SHORTER LENGTH REDUCES DECK SET AT 1 8 TO 1 2 WITH OPTIMUM SETTING AT 1 4 RAKE NOTE EXCESSIVE DECK RAKE MAY CAUSE PREMATURE BELT ADJUSTING LINKS TO LONGER LENGTH INCREASES DECK FAILURE ALWAYS CHECK DECK RAKE WHEN REPLACING RAKE 32 THE MOWER DRIVE BELT OR WHEN LEVELING THE DECK www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 D DIFFICULT TO LEVEL MOWER DECKS 1 Verify tractor frame is level by measuring the distance from frame to the ground on level flat surface Frame should measure the same or be within 1 8 of each other If frame measures more than 1 8 try the following 2 Reduce tire pressure to correct PSI rating o
118. klip ring 3 To repair remove the fuel tank or the battery and battery support tray which ever is applicable for ease of access to the steering assembly 4 Rotate the klip ring on the end of the pittman shaft assembly as shown in FIG 2 for ease of removing the klip ring With the klip ring rotated use a long screw driver and push the klip ring off 5 Place a pry bar in the slotted part of the frame and push the welded end of the pittman arm over to allow you to add additional washers to the shaft as required SEE FIG 2 6 Install 3 to 5 shim washers as required to tighten steering assembly and reinstall klip ring shim washer kit 71 917 159258 7 Reinstall the fuel tank or the battery and battery support tray which ever is applicable Time required to make this repair is approximately 20 minutes FIG 1 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 COMPLETE STEERING ASSEMBLY KITS FITS LAWN AND YARD TRACTORS BUILT AFTER 1992 Key st Part ShaftSize ShaftLength Steering Nut Steering Kit Assembly 17 128755 3 4 20 21 1 2 20 71 917 158718 17 128758 3 4 20 83 1 2 20 71 917 156595 17 128762 3 4 22 93 1 2 20 71 917 156596 17 132614 5 8 17 71 3 8 24 71 917 156593 30 140176 5 8 15 21 Bolt 71 917 156594 1989 1998 Steering Shaft Support 1999 Steering Shaft Support 165957 1999 Steering Assembly 160395 5 S US U a Pittma 5 S e
119. knut tighten jam nut securely TURNBUCKLE LINKAGE LOCKNUT JAM NUT FREEWHEEL CONTROL ROD ROD NUTS IF EQUIPPED FREEWHEEL CONTROL ROD the motion control lever becomes too excessive reverse the above adjustment procedure by loosening locknut 1 4 to 1 2 turn Road test tractor after adjustment and repeat procedure if necessary TO ADJUST NEUTRAL POSITION The Neutral N position of the motion control lever has been preset at the factory and adjustment should not be necessary If your tractor tends to creep when the motion control lever is in the neutral N position adjust the neutral lever position as follows LT See Fig 2 eSit on the tractor in the normal operators position Start the engine and disengage the parking brake so that the foot pedal is in the full up position NOTE If for any reason the effort to move Move the motion control lever until the tractor no longer moves forward or backwards Stop the engine and remove the key Loosen the jam nuts on balljoint shift linkage and twist connecting rod clockwise or counterclockwise until motion control lever falls into the neutral slot Tighten jam nuts and retest GT See Fig 1 Place motion controllever in neutral position Locateturnbuckle linkageattop right corner of draw bar and loosen jam nuts e Place concrete block under drawbar to lift rear wheels off ground Start engine and turn linkage connecting rod clockwise
120. l associated circuits are reset their capacitors discharged The longer it takes the delay circuit to surpass the charge pump capacitor voltage the later the trigger pulse will occur retarding the timing accordingly In summary the SAM receives the pulse from the ignition module via the brown lead It determines how much spark retard is required for the operating speed and then sends a signal pulse back to the SCS in the ignition module via the yellow lead From that point on the firing sequence is the same as the fixed timing system Troubleshooting CD Ignition Systems The CD ignition systems are intended to be trouble free for the life of the engine Other than peri odically checking replacing the spark plugs no maintenance or timing adjustments are necessary or possible Mechanical systems do occasionally fail or break down however so the following troubleshooting information is provided to help you get to the root of the reported problem 109 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 CAUTION High Energy Electric Spark The CD ignition systems produce a high energy electric spark but the spark must be discharged or damage to the system can result Do NOT crank or run an engine with a spark plug lead discon nected Always provide a path for the spark to discharge to ground Reported ignition problems are most often due to poor connections Before beginning the test proce dure check
121. l to make sure it does not exceed the full mark also check oil for fuel dillution Check the crankcase vacuum using a manometer to be sure it is within the specifications listed in the service manual Remove the valve cover s and inspect the drain back holes s Check to see the holes s are in the proper location and that there is a clear obstruction free passage to the crankcase Remove breather and check the breather passage Make sure it is open to the crankcase with no obstructions Inspect the breather according to the engine manufacturers service manual On a KOHLER engine inspect the reed itself for cracks or damage and replace it if necessary Check the breather reed seating area for surface burrs or something that would prevent the reed from seating 104 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 KOHLER engine inspect the reed itself for cracks or damage and replace it if necessary Check the breather reed seating area for surface burrs or something that would prevent the reed from seating If the steps above check out good but smoking continues to occur at start up it may be necessary to install an exhaust valve guide seal If the engine is already equipped with an exhaust valve guide seal replace the seal with a new one If the engine continues to smoke the next step is to perform a leakdown test This test will help to determine if there may be a
122. lade By Pass Jumper replace the connector on the Clutch Brake Switch and go to procedure 6 55 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 6 Check the Ignition Switch Disconnect the Ignition Switch Connector from the switch Place a Flat Blade By Pass Jumper across terminals holding Red wire B from battery and White wire S to starter If the engine turns over or cranks replace the switch If not remove the Flat Blade By Pass Jumper and replace the connector on the Ignition Switch 5 CIRCUIT IGNITION I CONNECTOR 6 CIRCUIT GROUND IGNITION CONNECTOR 7 If the above tests have not identified the problem the problem is somewhere other than the starting circuits To check the following items a Volt Ohm Meter VOM may be required Re check the battery a fully charged battery will have a D C VOLTS reading of 12 6 or more Remove the white wire from the solenoid check for Battery voltage when the ignition switch is in the Start position If voltage is 0 go to procedure 4 If 12 D C Volts check resistance of sole noid coil Set the meter at R x 1 scale Touch meter probes to the terminals on the side of the solenoid The proper resistance is 5 to 6 OHMS If the resistance is significantly higher or lower replace the solenoid Insure all normal starting components are functional The Clutch Brake Pedal fully depresses the Clutch Brake Switch and all switch Terminals are
123. lectrical current is taken to ground the spark plugs will not fire and the engine slows to a stop One way this happens is to turn the Ignition Switch to the OFF position The operator presence systems we will discuss next will also kill the engine ignition Have someone explain the electrical schematic below SPARK IGNITION PLUG UNIT GAP 2 PLUGS ON TWIN CYL ENGINES IGNITION SWITCH IGNITION SWITCH Posimion cur OFF 63 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 OPERATOR PRESENCE SYSTEM A System will be used on tractors with a manual engagement mower clutch unless that tractor has a Kohler Command Single cylinder engine System will ground out the engine ignition through the interlock switches This is the type of operator presence system we have had for years The Seat Switch is Normally Closed when the operator is not in the seat The Seat Switch must be closed at the same time as one of the other interlock switches is closed to kill the engine ignition This system does not have a relay The Seat Switch is gray and on 1998 tractors so is the connector The wires to the connector are black On Source 917 tractors black wires are used for ground wires Trace through the schematic If the operator is off the seat and the mower is engaged both the Seat Switch and the Attachment Switch are in the closed position Trace
124. ll creeps repeat step 2 until satisfied NOTE If additional clearance is needed to get to adjustment bolt move mower deck height to the 1 lowest position D Es M i z 7 1 2 47 54 1 27 NEUTRAL ADJUSTMENT FOR GEAR DRIVE SHIFT LEVER Place the tractor on a level surface 2 With the engine off and the parking brake disengaged push the tractor from behind while shifting 3 gears When the tractor rear wheels move freely the transaxle is in neutral Leave in this position Loosen Adjustment Bolt in front of the right rear wheel using a 1 2 wrench Position the Lever in the position indicated for Neutral Tighten Adjustment Bolt securely NOTE If additional clearance is needed to get to adjustment bolt move mower deck height to the lowest position 30 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TRACTOR MOWER DECK LEVELING PROCEDURE COMMENTS FOR QUALITY OF CUT PROPER ADJUSTMENTS TO MOWER DECK LEVELNESS AND ENGINE RPM ARE IMPOR TANT FOR OPTIMUM MOWER PERFORMANCE AND QUALITY OF CUT WATCH OUR NEW DESK LEVELING VIDEO PART 168695 Customers should be instructed to always mow at full engine speed There is a detent in the throttle control that marks this position The throttle and carburetor should be properly adjusted to provide maximum allowable full engine speed when mowing The correct allowable full engine speed
125. ller for an extended period or operating in very dusty conditions Run tractor to heat up oil Warm oil will drain more freely Be sure tractor is on level surface and catch oil in a suitable container Lift tractor off the ground with lift at the drawbar of the tractor or block up tractor so the left rear wheel is just off the ground and remove left rear tire Be sure to keep tractor as level as possible 1 Remove oil filter 2 Remove hose from end of swivel fitting at oil drain location 3 After oil has drained completely replace hose end to swivel fitting and tighten securely 4 Put a small amount of oil on the filter rubber seal before installing Install the new filter and tighten 3 4 of one turn after the filter seal touches the filter mounting base to prevent an air leak Order the proper replacement filter from AYP 5 Remove oil level port plug 6 Remove vent cap from end of oil fill tube and refill transaxle with about 45 ounces of 15w50 Synthetic Mobil one engine oil Fill oil through the oil fill breather vent hose until just before the oil starts to come out of the oil level port hole Pour slowly do not overfill let excess oil drain out of oil level port hole Note the system holds 60 ounce of oil but you will only get out about 75 during a oil change About 25 of the oil will remain in the pump for a prime to restart the system after the oil change 7 Replace oil level plug and purge transaxle as
126. lter 8 Check Spark Verify ignition system is operating properly using Spark Tester 19368 Inspect spark plug wet dry carboned or use a known good plug Remove the high tension lead or wire attached to the spark plug terminal insert the spark tester and ground the other end If you have spark reconnect and try to start tractor If there still is no spark disconnet the electrical as close to the ignition module as possible Try tostarttractor again If you have spark after disconnecting the switches then one of the switches clutch brake PTO or Ignition is grounding out the ignition module and itmust be checked See the sample schematic on the following page www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 RED BLACK BATTERY SPAN OVO Ollo s9 o voe 1 FUSE 30 MM ne aK O i 1 qa dt BUENO m NUNG T P METAM ARE e CLUTCH BRAKE PEDAL UP SEAT SWITCH A eru m mrt NOT OCCUPIED WHITE Q Q BLACK 77 PLACK ATT MENT CLUTCH GROUNDING 7 CLUTCH OFF CONNECTOR o ELAO IGNITION O SPARK ww UNIT PLUG een 1 BLUE NND NU EWS l AA AFTER FIRE SOLENOID ARD a ARD APM T VO AGING SYSTEM DISCONNECTED RED N N
127. m For Husqvarna Parts Call 606 678 9623 or 606 561 4983 BRAKE ADJUSTMENT STEP THRU LI YT GEAR DRIVE STEP THRU HYDROGEAR TRANSAXLES PEERLESS DANA 0500 0650 SHOWN WITH SHOWN WITH PARKING BRAKE 1 PARKING BRAKE ENGAGED ENGAGED NUT A JAM NUT OPERATING JAM NUT ARM OPERATING ARM GT BRAKE BAUD BRAKE ADJUSTMENT IMPORTANT DO NOT OVER TIGHTEN BRAKE WHEN DEPRESSING CLUTCH BRAKE PEDAL THE MOTION DRIVE BELT MUST STOP MOVING DECLUTCH FROM ENGINE PULLEY BEFORE BRAKE ENGAGES IMPROPER ADJUSTMENT WILL CAUSE HARD SHIFTING AND EXCESSIVE WEAR TO BRAKE LINING e Dark and turn off the tractor on a level surface e Tighten jam nut against clevis Place gear shift lever in neutral N position Replace access hole cover Pd on h d De sure Magior Road test tractor for proper stopping distance does NOt rout P and declutching as stated above Readjust if Lower mower deck if installed on tractor necessary If proper adjustment cannot be Snap out access hole cover on left side of tractor attained replace brake band above footrest Loosenjam nut at clevis which will allow brake rod to be rotated With pliers from underside of frame unscrew brake rod from clevis four 4 to six 6 full turns e Start tractor
128. med whenever Service workis performed ona tractor Tractor traveling at high speed in highest gear must stop within 6 feet when the brakes are applied If tractor requires more than 6 feet to stop a brake adjustment should be made before returning tractor to the customer TO ADJUST BRAKE Your tractor is equipped with an adjustable brake system which is mounted on the side of the transaxle Depress clutch brake pedal and engage parking brake e Measure distance between brake operating arm and nut A on brake rod e If distance is other than dimension shown for your type tractor loosen jam nut and turn nut A until correct distance is reached Retighten jam nut against nut A VGT HYDRO TRANSAXLE AYP DISC BRAKE TRANSAXLE WITH PARKING BRAKE ENGAGED OPERATING ARM 16 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 LAWN RIDER Brake adjustments PEERLESS HYDRO Brake adjustments HYDRO GEAR 3000 Brake adjustments www mymowerparts co
129. more extensive problem If leakage is over 30 proceed with the fol lowing three checks 1 Inspect head gasket for leaks between the combustion chamber and the lifter or drainback area and replace if necessary Inspect the cylinder bore for wear glazing or deep grooves 3 Inspect the piston and rings for wear aligned end gaps or damaged oil ring expander and repair or replace if necessary Braking Stators on KOHLER Command Single CV15 16 5 As of July 1 1997 mower blades on ride on equipment must stop within 5 seconds after the seat interlock switch is activated At the request of some OEM customers Kohler has developed a sys tem which uses the charging system to make the engine stop faster so the equipment will comply with the new regulation If the operator leaves the seat an interlock circuit is activated which then short circuits the alterna tor stator The shorted stator creates maximum potential opposition to the charging magnets Since the seat switch also cuts off ignition and the engine is no longer producing power the increased drag of the charging system helps oppose the flywheel momentum and stop the engine faster Testing this System The 15 amp stator has a short pigtail lead attached to each of the AC lead terminals The seat inter lock circuit completes a path between these pigtail leads thus shorting the AC windings Testing of this system is identical to the standard 15 amp system The braking sta
130. n lead and a good engine ground Spin the engine over at least 250 RPM and watch for spark in the tester window As simple as it seems this is a fairly comprehensive test The tester electrode gap is 166 wide Those wise in the way of electrons have calculated that it takes around 13 000 volts to jump this gap We need 10 000 to jump the gap on a cold spark plug Add it all up and we have voltage to spare Engine quits while running Hook the tester up in line with the spark plug and start the engine When the engine quits monitor the window If spark is present the problem is not in your ignition coil By the way this test stresses the coil well beyond the demand it would see in operation Think about it We re asking the coil to build enough voltage to jump TWO gaps the tester as well as the plug If your engine starts and runs OK cold and hot you ve got a healthy ignition coil Note because Solid State Ignition coils depend on the flywheel magnets to operate they will function even if the flywheel key is sheared unlike breaker point systems 88 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 One additional test you can perform check the impedance resistance of the secondary circuit at room temperature Hook an ohmmeter test lead to the spark plug terminal of the high tension lead and another to the lamination stack ground Your resistance reading should range between 2 500 and 5 000 ohms If infinite no c
131. n tires 14 Ib front 10 to 12 Ib rear 3 Levelthe tractor frame Loosen do not remove the thread rolling screws and the two bolts on each L shaped transaxle mounting bracket where the bracket mounts to the tractor frame Loosen do notremove the two bolts on each torque strap where torque strap mounts to the tractor frame Lift the rear of the tractor up and down until tractor sits level Retighten thread rolling screws and all bolts previously loosened OLD HATCHET DESIGN ADJUST TIRE PRESSURE CHECK LEVEL OF TRACTOR FRAME FRAME SHOULD MEASURE SAME OR BE WITHIN 1 8 OF EACH OTHER ADJUST THESE NUTS FOR SIDE TORQUE TONGUE TO SIDE LEVEL OF DECK rd STRAP STRAPS BOLTS A 4 5 FRAME BRACKET 138441 THREAD ANTI SWAY BAR KIT ROLLING A SCREW DECK BRACKET y x d 0 Fed ll MER TRANSAXLE e MOUNTING BAL BRACKETS BOLTS THREAD ROLLING SCREW uS LEVEL THE TRACTOR FRAME 4 Lawn tractor built 1992 and 1993 with the old style hatchet design suspension system can make side to side leveling difficult Suspension kit 152287 71 917 can be installed to make side to side leveling adjustment easier by turning two adjusting nuts 5 38 and 42 mower decks built in 1992 can sway side to side when cutting This be corrected by installing Anti Sway kit 138441 71 917 33 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 WHAT TO REME
132. n tractor batteries are smaller capacity than automotive batteries At the end of the 10 second load test 8 5 volts is acceptable for Lawn amp Garden Batteries If below 7 2 volts on the load test discard the battery for an internal problem If the Load Testis below 8 5 volts and the Open Circuit voltage is below 12 5 volts charge the battery for 2 or more hours and retest the battery BATTERY REPLACEMENT CHART CASE SIZE ACME DRY P N ACME WET P N FEAST PENN WET P N 20 130 i gt LT TCR p 85 85 n ao a T E E 3 Lu un CTS a TE C us p osx T i3 A 9 LL qq ee qp 7 5 5 MILTON BATTERY TESTER 092 150 BT1260 50 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Label batteries during testing Label failed batteries as Bad to keep from charging and testing these batteries again unnecessarily Label batteries passing Load Test as GOOD and with date tested This will keep from mixing batteries and unnecessary work NOTES Do Not Mix Batteries on charger Batteries that have been charged and tested good should not be charged at the same time as batteries that have not been charged The charging system and batteries should be located in a well ventilated area When testing a battery remove it from the charging rack and away from other batteries Materials used to clean battery exterior can be di
133. narrower at one point This can also happen if the sides of the pulley are separating from the hub of the pulley It may not be noticeable unless the drive system is engaged with the engine off Shock Load fracture of V belt The v belt is broken or pulled apart It is not a smooth cut that you might get from a v belt guide The material fracture is rough and cords may be hanging out of one or both ends The cords are well defined m www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 When a battery is replaced we need to determine the reason the old battery failed The battery is often the symptom not the problem There will be additional service calls until the real problem is found And until then batteries will be unnecessarily replaced 50 percent of all replaced batteries can be charged tested and reused BATTERY SECTION ON BATTERY FAILURE DETERMINATION AND TESTING Reasons for battery replacement include bad electrical ground battery cable connections corroded battery internal problem engine hydraulic lock improper operation of the engine compression release electrical drain or short in wiring harness or component engine charging system problem engine RPM to slow during operation or the battery was not fully charged when installed All storage batteries discharge when not being charged and the discharge rate increases as the temperature rises Batteries in storage for more than 6 months will n
134. ndary As the points open the circuit breaks and collapses the field back to the primary The field caving inon itself is movement just like the rotating magnetic field of the flywheel This movement is at speeds much greater than the flywheel could spin near the speed of light The rapidly collapsing field tears through the secondary winding which has sixty turns of wire for every one turn of the primary effectively generating 60 times the voltage created in the primary The sum total of this is that the secondary winding can create up to 25 000 volts which is used to jump the gap of the spark plug and ignite the fuel air mixture in the combustion chamber So what s different about theSolidState Ignition system Mostof what you know from point style systems still applies Solid state ignition armatures in essence replace the mechanical breaker points with a transistor contained within the armature body That is we replace a mechanical switch with an electronic one no moving parts no arcing no adjustments and the reliability of solid state circuitry Now that we ve got an idea of how it all works let s look at what is required to create a good spark Flywheel The flywheel magnet must have a suffficient magnetic field to start the chain of events in motion A fair test is to hold the flywheel on edge with the magnet facing up Place the blade of a 10 3 1 4 straight blade screw driver against the magnet Release the screwdriver The mag
135. ne operates properly when controlled by the idle speed adjusting screw but hunts and surges when controlled by the governor spring the governor system is suspect Check the governor linkage for resistance and binding and replace the governed idle spring and the main governor spring Hunting and Surging Under Load Hunting and surging under load usually indicates a carburetor or fuel delivery system problem rather than a governor system problem Fuel fed under load is primarily fed through the main jet and emulsion tube Most loads are constant enough to maintain the rpm of the engine The gover nor system has very little additional effect on the performance of an engine under load except for applications with sizable varying loads such as a generator Poor Performance Under Load Poor performance under load requires first eliminating compression component problems If the problem is isolated to the fuel system the cause is usually debris in the main jet or air bleeds To isolate the problem component examine the exhaust gas when the engine is under load If black smoke is present there is an excess of fuel This condition may be caused by an incorrect float level setting a partially clogged main air bleed or debris lodged between the needle and the seat If black smoke is not present and there is no black residue on the muffler deflector the main air bleed or main jet is probably obstructed A primer bulb system or choke can also be used to qu
136. net should have enough strength to hold the screwdriver straight out If we pass this test assume the magnet is OK Rotational speed Remember speed is a factor The engine must be pulled over at a minimum speed of 250 RPM before the coil will even think about firing Thick oil on a winter day or a heavy parasitic load may cause problems Customers come into play here as well Shorter or elderly individuals may not have the leverage or strength required to reach the RPM necessary to activate the Solid State s electronics Spark Plug The spark plug is a major element of the equation A new spark plug may require around 10 000 volts to jump 030 gap when the engine is cold This drops to just 4 000 when the engine is hot as electrons are more easily emitted from a hot surface That s one of the reasons the old vacuum tubes in radios had to warm up before the radio would work Electrons are also more easily emitted from a sharp edge than a round one A spark plug begins to require more and more voltage as normal wear causes the edge of the center electrode to become less defined And finally an internal short or carbon fouled plug simply shunts the high voltage burst straight to ground resulting in insufficient spark or no spark at all Ignition Coil The ignition coil is probably the easiest thing to check and therefore the first thing to check when embarking upon ignition system troubleshooting Install the spark tester between the high tensio
137. o be aware of color which will indicate the switch is functionally different The new seat switch will be Olive Green and the color of the connector should match the switch If the interlock switch is gray and the cap on one end of the interlock switch is black it is different from a switch that is all gray 61 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Hn OPERATOR PRESENCE SYSTEM The Operator Presence System is designed to protect the operator of the tractor This system will short the ignition system for the engine to die and the mower blades to stop When the operator is in the safe position the tractor and mower will work Tractors have had an Operator Presence System since 1987 New ANSI standards went into effect on July 1 1997 that makes it mandatory for the engine and mower blade to stop in five 5 seconds or less For clarity in this discussion we will label these systems with letters System B will be used on most Source 917 tractors with an Electric Clutch for mower engagement and a Magneto Ignition This system will have one 1 relay in the operator presence circuit There have been changes to System C during 1998 Below find a rewritten explanation for System C along with a new schematic and new harness print for Ignition Harness 163845 For the com plete explanation of all 5 Operator Presence Systems see the 1998 FHP On Site Manual number 163578 OPERATOR PRESENCE SYSTEM
138. ohler 22 25 HP Jumper Wire Test Kit Manometer for crankcase pressure Micrometer 0 1 0 Mower Deck Straightener Multimeter Multimeter Fluke73 Puller Harmonic Balancer Puller rear wheels and engine stack pulley Ring Expander Seal Puller Starter Drive Install Tool Briggs amp Stratton Starter Drive Removal Tool Briggs Starter Drive Tool Kit Kohler Strap Wrench for Engine Stack Pulley Tang Bender Tap and Die set 39 piece Telescopin Gauge Timing Light Tiny Tachometer and hourmeter Tire Changer Torque Wrench Spring 0 600 inch Ib 3 8 Dr Torque Wrench Digitorkt 25 250 ft Ib Universal Socket B amp S Vanguard Starter Valve Spring Compressor Division 71 Supplies Description Adhesive gel instant 3gr tube Anti seize 1 Ib brush topcan Battery Cleaner 6OZ aerosol Battery protector and sealer 6OZ aerosol Carb amp Choke Cleaner 15OZ aerosol CarbForce Gasket Eliminator Flange Seal 50ml bottle Lubricant White Lithium multi purpose 14 oz Penetrant Lubricant Corrosion Prevenative 1507 PST Pipe Sealant 50ml bottle Quick metal press fit repair 6 ml tube RTV Silicone Ultra Blue 3Oz tube Cleaner Degreaser 32 oz bottle case Terminal Connector Kit Threadlocker 10ml locktite permanent Threadlocker242 10ml locktite removable 122 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Touch Up Paints for Lawn amp Garden PART NUMBER 71 917 150020 71 917 150131 71 917 130937
139. ompression the plug requires twice the voltage to fire This check is not an accurate test of the coil and can be misleading Anarmature air gap thatis too wide will prevent spark Not true Well sort of not true Air gaps can not be made too wide to prevent spark providing the coil is healthy and the engine is spun over fast enough A wide air gap say 030 will ever so slightly retard the ignition timing as the magnetic field takes longer to build within the coil windings A few final words Solid State Ignition coils rarely fail If one is suspect perform the outlined checks exactly as mentioned MOST IMPORTANT Be sure to isolate the coil from the equipment wiring harness as well as the engine s wiring harness That s right unhook the ignition grounding lead from the coil itself and use the spark tester Many a technician is fooled into replacing a good coil because the coil grounding lead was shorting out against a piece of sheet metal DO NOT attach the tester to the spark plug for this test The engine may start Without the grounding lead installed you won t be able to turn it off If the coil is properly grounded to the engine block engine speed is at least 250 RPM and the flywheel magnets are OK there should be spark present in the window of the tester If not repeat the test double checking your procedure Still no spark Then and only then replace the coil THICKNESS S Adjusting Air Gap 89 www mymowerparts
140. on in owner s manual 4 Dana transaxle 16 oz Shell dorina type O grease Part number 120416X Peerless transaxle 30 oz Bentonite grease NOTE on transaxle with grease only change or add grease when making repairs to the inside of transaxle IMPORTANT do not oil or grease the Pivot points which have special nylon bearings Viscous lubricants will attract dust and dirt that will shorten the life of the self lubricating bearings noe feel they must be lubricated use only a dry powdered graphite type 14 lubricant sparingly www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 SERVICE ORDER DOCUMENTATION It s important to always document the reason for failure on the service order On an in warranty product do not close the service orders as in warranty if the failure is due to customer abuse neglect or even accident Verify and document as much information as possible about a service call on the service order Especially when a major component has been replaced here are a few examples of acceptable and not acceptable service orders 1 NOT ACCEPTABLE A Service Requested Won t Run B Tech Comments Replaced Engine 2 ACCEPTABLE A Service Requested Won t Run B Tech Comments Found black dirty oil in pump connecting rod broken Customer abuse changed engine tested for safety compliance and charged customer C Call closed as collect 3 ACCEPTABLE A Service Requested Won t Run B Tech Comm
141. ontinuity an internal open circuit exists Replace the coil If infinite but the engine runs your problem is an internal break of the high tension lead a poor attachment of the spark plug terminal or improper mating of the high tension lead to the coil The lead is skewered by a pin within the coil body If the pin does not contact the wire core there will be no continuity The coil will often have enough available voltage to jump the gap so you see spark The internal arcing that occurs within the high tension lead will eventually create enough resistance that ignition system performance will suffer If your resistance reading is much lower than 2 500 ohms an internal short exists Replace the coil Now how about some of those old wives tales that just aren t true e Rust on the flywheel magnets causes a loss of spark Not true A magnetic field does not care about rust It has no effect on it bright blue spark is best A yellow orange spark signifies weak ignition Not true Spark color determines virtually nothing The hottest spark is ultraviolet which we can t see Blue spark is cold in comparison to ultraviolet Orange and yellow come from particles of sodium in the air ionizing in the high energy of the spark gap Ignition coil output can be adequately tested by laying the spark plug against the block and pulling the engine over Not true The ignition coil will only generate enough output to jump the gap of the plug When under c
142. or Husqvarna Parts Call 606 678 9623 or 606 561 4983 Instructions For Removing C Ring Tool 92 150 19436 1 Place counterbore side of tool over retainer and align drive pins with open end of C ring Important If retainer has a notch as shown DO NOT align drive pins with notch If necessary rotate notch away from open end of C ring 2 Place paim of hand over tool and push down evenly on tool to compress spring washer 3 While applying pressure turn knurled knob clockwise until C ring pops off Discard C ring 4 Use Tool 19435 to install new C ring RETAINER amp DO NOT ALIGN DRIVE PINS WITH NOTCH BRIGGS amp STRATTON CORPORATION Milwaukee Wisconsin 53201 PRINTED IN U S A FORM MS 0947 10 96 INSTALLING C RING TOOL 92 150 19435 1 Assemble starter clutch to starter shaft and rotate clutch until it drops into place 2 Apply a lithium base lubricant sparingly around base of helix then install starter gear with beveled side of teeth up Then install return spring making sure spring is in recess of starter gear Note Do not use silicon or mineral spirit based lubricants to lubricate helix 3 Install spring washer with concave side up Install retainer 4 Place C ring over chamfered end of shaft Align one of the slots of C ring installer with open end of C ring 5 Press or drive C ring on until it snaps into groove in shaft STARTER TOOL ICANT CLUTCH 419435 SPARINGLY RETAINER AR
143. orm the prelimi nary test first then follow the procedure that matches the symptoms Special Hand Tools Required Hand Tachometer Tester 24 455 02 Automotive timing light Multi meter digital Specifications Required Spark plug gap 030 Ignition module air gap 008 012 010 nominal 110 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 NOTE Ignition tester 24 455 02 must be used to test CD ignition systems Use of any other tester can result in inaccurate findings Battery on unit must be fully charged and properly connected before making any of thesetests a battery that is hooked up or charged backward will crank the engine but it won t have spark Be sure drive is in neutral and all external loads are disconnected Preliminary Test To be certain the reported problem is in the engine ignition system it should be isolated from the unit 1 Locate the plug connectors where the wiring harnesses from the engine and unit are joined Separate the connectors and remove the white kill lead from the engine connector Rejoin the connectors and position or insulate the kill lead terminal so it cannot touch ground Try to start the engine to verify whether the reported problem is still present a If the problem is gone the electrical system on the unit is suspect Check the key switch wires connections operator presence interlocks etc b If the problem persists follow the procedure t
144. ots against v belt Check for obstructions in mower decks including grass buildup 43 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Check the failed v belt for Wear patterns Deformation Cuts Burned section Oil saturation of v belt cover V belt pulled apart ILLUSTRATIONS of FAILED V BELTS Excessive Oil causes V belt Cover to swell Belt looks normal but belt feels sticky or spongy Replace v belt and correct the reason for the oil problem NS TAES V belt Slippage V belt drive lacks proper tension or v belt is worn out The belt may show glazing on the sidewalls excessive heat fabric worn from belt sidewalls or sidewall fabric polished smooth Measure v belt length and compare to dimension in newest accessories book Rupture A ruptured belt is caused by an obstruction coming between the belt and the v pulley putting excessive pressure on the cords The cords will fracture inside the belt and the belt will separate Unlike a shock load the cords will be frayed and fuzzy on both ends V belt Cut from installation by Prying v belt over pulley Replace v belt with correct instal lation procedure V belt bottoms out in Pulley or Wear from rough Pulley V belt worn away at the sides of the v Check pulley grove and v belt width Also check the v belt pulleys or small rock wedged into the pulley Worn v belt sidewalls v belt rides at bottom of the pulley
145. plug and change oil winter weight only Lubricate moving parts pivot point cables auger shaft grease zerk and chains Inspect adjust or replace as needed all drive belts belt guides Check manual starter and electric starter if so equipped Check and adjust disk drive assembly and auger cable Check chute control rod and deflector Test overall operation of the snow thrower Check for proper operation of all safety features OIL FILTER POKE HOLE IN TOP OF FILTER HERE www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TRACTOR LUBRICATION Important do not oil or grease the pivot points which have special nylon bearings Viscous lubricants will attract dust and dirt that will shorten the life of the self Iubricating bearings If you feel they must be lubricated use only a dry powdered graphite type lubricant sparingly HYDRO LUBRICATION CHART SPINDLE ZERK 2 Z sPINDLE ZERK If equipped If equipped FRONT WHEEL 2 BEARING ZERK PUMP FLUID 1 SAE 10W30 Motor Oil API SG 2 General purpose grease 3 Refer to customer responsibilities Engine section in owners manual 4 Grease shell dorina type O 20 oz 5 SAE 20W50 Motor Oil API SG CD Lawn Tractor 310 500 310 650 310 750 IHT Hydro transmission holds approximately 80 oz 20W50 motor oil Garden Tractor 210 3010L GT Hydro transmission holds 60 oz 20W50 motor oil or 10W40 or 15W50 Mobil 1 synthe
146. rfire or afterboom in the exhaust system Customers tend to get more upset about afterboom and a case of brown short syndrome than repositioning the throttle lever so KOHLER engineers have revised the recommended shutdown procedure to one that will not contribute to any afterfire As a review we are including the recom mended starting procedure along with the revised stopping procedure Engine Starting 1 Place the throttle control midway between the slow and fast positions Place the choke control into the on position 2 Start the engine activate the starter switch Release the switch soon as the engine starts NOTE Do not crank the engine continuously for more than 10 seconds at a time If the engine does not start allow a 60 second cool down period between starting attempts Failure to follow these guidelines can burn out the starter motor NOTE Upon start up a metallic ticking may occur This is caused by the hydraulic lifter leakdown during storage Run the engine for 5 minutes The noise will normally cease in the first minute If noise continues run the engine at mid throttle for at least 30 minutes If noise persists a trained service technician should diagnose the engine NOTE If the engine develops sufficient speed to disengage the starter but does not keep running a false start the engine rotation must be allowed to come to a complete stop before at tempting to restart the engine If the start is engag
147. s com 140z can 12 cans 150z can 12 cans 140z can 12 cans 150z can 12 cans 140z can 12 cans 140z can 12 cans 100z can 12 can 320z bottle12 bottles 160z bottle12 bottles Hand Cleaner Skin Prorector and Softener Tema pa nt nasi qni np ini dr oftens Clrams Protect For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TECHNICAL TRAINING and SERVICE INFORMATION BOOKS Part Number 163578 169291 169418 168830 158222 158223 158224 168695 169287 139132 BLN 50432 BLN 50334 99924 2041 01 Part Number MS 8518 MS 8798 MS 9152 MS 9557 MS 9884 MS 2285 MS 2857 MS 0279 MS 0575 MS 0981 MS 0709 MS 0710 MS 2288 MS 3957 MS 3992 MS 5437 MS 5441 270962 271172 Part Number 692509 691462A 691218 695244 695907 695590 695933 694862 Part Number TP 2339 TP 2450 TP 2289 TP 2131 ES 103 ES 2007 2372 ENS 967 TP 2067 Description from F H P Source 917 order from D92 192 Tractor amp CRT Tiller Service Information Book 1999 Craftsman amp Wizzard Tractor Mowers Tiller Accessories Book 1999 Craftsman amp Wizard Tractor Wiring Schematics Book 1999 Service Update Information Book 1997 FHP Tractor Quick Reference Book 1997 FHP Mowers Tillers Quick Reference Book 1997 FHP Tractor Wiring Schematics Book Deck Leveling Video Automatic Transmission Drive System Video Electrical amp Charging Systems Book HYDRO GEA
148. s of the following components A magnet assembly which is permanently affixed to the flywheel Two electronic capacitive discharge ignition modules which mount to the engine crankcase Figure 2 e A kill switch or key switch which grounds the modules to stop the engine Two spark plugs Kill Switch or Position of Key Switch 008 042 20 30 mm Flywheel Air Gap 107 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 The timing of the spark is controlled directly by the position of the flywheel magnet group relative to engine top dead center Figure 1 Capacitive Discharge Ignition System FIG 2 Figure 2 Capacitive Discharge Ignition Module Operation As the flywheel rotates the magnet grouping passes the input coil L1 The correspond ing magnetic field induces energy into the input coil L1 The resultant pulse is rectified by D1 and charges capacitor C1 As the magnet assembly completes its pass it activates the triggering device L2 which causes the semiconductor switch SCS to turn on With the device switch on the charging capacitor C1 is directly connected across the primary P of the output transformer T1 As the capacitor discharges the current initiates a fast rising flux field in the transformer core A high voltage pulse is generated from this action into the secondary winding of the transformer This pulse is delivered to the spark plug gap
149. se conditions are met and the Ignition Switch is in the Start or the and Lights position e Operator Presence Relay 1 is energized opening the contact that would kill the ignition e Operator Presence Relay 2 is energized opening the contact that engages the Stator Brake e The Stator Brake a magnetic field brake is actuated See page 77 e The Fuel Shut off Solenoid is energized letting fuel into the carburetor This circuit also supplies current to the 5 on Kohler Command Engines with this ignition system e S UL O SOLENOID far C imi o e e i AMMETER FUSE 30 AMP STARTER OPTIONAL BLACK Ue em e CLUTCH BRAKE i i RED PEDALUP 2 Vis t ware Exc QE EE O BLUE i FUEL Pie 7 2 M we E CLUTCH 4v LINE IGNITION 1 CLUTCH OFF IGNITION SWITCH SWITCH p i efie POSITION CIRCUIT MAKE A i SER Mc OFF G M L NONE e FURL SHUT OFE ia see LENOID RUN LIGHT B L A Y SEAT SWITCH 1 RUN B L NONE NOT OCCUPIED START B L S NONE 8 i T e i OPERATOR WIRING INSULATED CLIPS T PS PRESENCE RELAY 1
150. sposed of normally as there is no lead content from electrolyte To neutralize acid add baking soda to water and stir until there is no reaction NEW TRACTOR BATTERIES Beginning in 1995 new tractors are shipped from the factory with Maintenance free batteries This eliminates the need for setup people to fill the battery with acid There is a decal on top of these batteries with a recharge date Before or during that month it is not necessary for the battery to be charged during setup After the date on decal the battery must have a 6 10 Amp charge for a minimum of one hour Tractors with batteries that are delivered without an adequate charge will cause in warranty service calls It is expected the setup person will charge the battery if necessary attach the battery cables and properly install the battery hold down DIV 71 PLS 917 ORDER PART 148692 ORDER PART 148701 CONNECTOR ELEC CLUTCH CONNECTOR INTERLOCK TRACTOR SIDE SINGLE POLE ORDER PART 148693 ORDER PART 148702 E B TERMINAL MALE BLADE TERMINAL 250 SINGLE LEAD SINGLE LEAD ORDER PART 148694 ORDER PART 148703 T E R M L TERMINAL MALE BLADE TERMINAL 250 DOUBLE LEAD DOUBLE LEAD ENTIRE KIT PART 148691 ORDER PART 148695 ORDER PART 148704 DIV 92 PLS 192 CONNECTOR FUSEHOLDER E ON ORDER PART 148696 ORDER PART 148705 ie TERMINAL FUSEHOLDER SPLICE BUTT 16 GAGE ORDER PART 148697 ORDER PAR
151. t of carburetor mixture richer needle settings and dirty air cleaner elements b C d e f How to a oana h i Engines with higher than normal oil consumption over 1 ounce hour Engines that run at constant speed and load Engines that run with light loads and cooler combustion chamber temperatures Quality of fuel and additives Not running the engine at correct throttle speed clean the combustion chamber Spraying chemicals into the carburetor is not recommended Loose carbon in a running engine can cause major damage in a few seconds Clean the outside of the engine as best as possible Remove the shields to expose the cylinder head and bolts Remove the cylinder bolts evenly Use a wooden or plastic scrapper to remove the carbon from the top of the piston cylinder valves top of the bore and cylinder head Soaking the head in household ammonia cleaner and water will soften the carbon Clean all loose carbon particles from the combustion chamber and use aerosol carb cleaner to flush Do not try to remove all the brown stains Install new gaskets old gaskets are compressed and will not seal properly Torque head bolts in proper sequence to the recommended range Aluminum heads and cylinders will not seal if over or under torqued Lube threads with light weight grease or heavy oil Install shields and air guides This is not considered warranty 91 www mymowerparts com F
152. t will help identify the problem 1 Use a marking pen or a piece of narrow tape 1 line correction tape works very well to make a line near the edge of the flywheel screen 2 Connect an automotive timing light to monitor spark on the 1 cylinder 3 Run the engine at idle and use the timing light beam to locate the line you put on the screen Draw a line on the blower housing adjacent to the one on the screen Acceler ate to full throttle and watch the movement of the line on the screen relative to the line on the blower housing Stop the engine move the timing light to the 2 side and repeat the procedure Stop the engine when finished 4 The marks you made on the blower housing corresponding to the firing points of the cylinders should be 90 apart As you accelerated the timing should have advanced 5 to 15 and the line on the screen should have moved 1 2 to 3 4 13 16 mm counter clockwise from the mark on the blower housing 114 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 a If the marks on the housing are not 90 apart or the timing did not advance remove the blower housing and follow step 5b from Procedure 1 to test voltage to the SAM If voltage checks good replace the SAM b If the marks on the housing are at the same position one of the ignition modules is firing out of time usually indicating a wiring problem between the SAM and one of the modules Remove the lower housing
153. tches are in place and functional when you are done working on the customers product Parts which are worn modified or damaged should be repaired or the product should be made non functional until repairs are completed CAUTION Do not allow the customer to operate Always mow or mulch grass with the discharge the mower with the safety discharge guard re guard attached to the mower deck moved CAUTION Do not allow the customer to operate Always mow grass with all safety guards required a mower with any Mandrel safety guards installed on the mower deck removed Primary V Belt Kit for 46 Deck With Electric Clutch Kit 166109 1 Remove the LH Deck Mandrel Cover 145059 and the current Primary Mower V Belt 139573 from the deck Discard the v belt 148763 2 Remove the primary Drive Idler Pulley 156493 and the Threadroll Screw 17490628 3 Install the Spacer Washer 19132203 between the Primary Drive Idler Pulley 156493 and the Idler Belt Keeper 156086 Hold belt keeper in place as Threadroll Screw 17490628 is tightened to ensure correct orientation of the belt keeper 4 Route the new Primary Mower V Belt 148763 in the same path as the old Primary Mower V Belt 139573 5 Install the LH Deck Mandrel Cover 145059 back on the deck with the original hardware Installation is complete NOTE 46 manual engagement mower deck uses primary belt 158818 36 www mymowerparts com For Husqvarna Parts Call
154. the completed circuit through both switches to the black wire to the Terminal of the Ignition Switch then to the Engine Ignition Unit This grounds out the engine ignition Now trace through the schematic for the foot pedal up or drive belt engaged Clutch Brake switch closed Only the items needed for operator presence are in the schematics STARTER Tope C i BLACK SOLENOID CLUTCH BRAKE PEDAL UP SEAT SWITCH NOT OCCUPIED IGNITION SWITCH BLACK BLACK ATT MENT CLUTCH w 5 GROUNDING CLUTCH OFF CONNECTOR SPARK BLACK IGNITION PLUG e UNIT GAP 2 PLUGS ON TWIN CYL ENGINES 64 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 OPERATOR PRESENCE SYSTEM System B will be used on all Source 917 tractors with Electric Clutch mower engagement In this system the Seat Switch does NOT ground the ignition to Kill the engine Current flows from the Ignition Switch through the Seat switch to energize a relay When the Operator Presence Relay is energized the engine ignition fires When the Operator Presence Relay disengages con tacts are made to ground out the ignition stopping the engine In this system the Seat Switch is Normally Open when the operator is off the seat When the operator gets on the seat the switch closes This seat switch is Olive Green
155. tic motor oil GARDEN TRACTOR LUBRICATION CHART 8 TIE ROD BALL JOINTS SPINDLE ZERK 2 FRONT WHEEL BEARING ZERK 2 STEERIN SECTOR GEAR TEETH 1 SAE 30 Motor Oil API SF SG holds 128 oz 2 General purpose grease 3 Refer to customer responsibilities Engine section 4 Spray silicone lubricant move boots to lubricate NOTE HYDRO TRANSAXLE FLUID a 20W 50 engine oil with an API classification of SH CD is recommended for most normal operating conditions In some cases such as northern climates where temperatures commonly drop below 20 F it may be necessary to perform seasonal oil and filter changes to achieve the proper performance levels expected from a hydrostatic transmission The recommended winter fluid would then become a 10W 40 engine oil An alternative to seasonal fluid and filter changes would be to use a synthetice engine oil such as 15W 50 Mobil 1 This choice offers not only better cold weather performance but also improves high temperature protection over both of the previously mentioned fluids The volume of fluid required to refill a transaxle is approximately 2 1 2 quarts LAWN TRACTOR LUBRICATION CHART SPINDLE ZERK 2 SPINDLE ZERK If equipped If equipped FRONT WHEEL 2 FRONT WHEEL BEARING ZERK BEARING ZERK GEARSHI TQ PIVOTS 1 SAE 30 or 10W30 Motor oil API SG 2 General purpose grease 3 Refer to customer responsibilities Engine secti
156. till noisy after an hour of running make arrangements to get the engine unit in for further diagnosis C Quick Purge Lifter When the task force began analyzing and tracking reports of noisy lifters they realized that most of the complaints were on CV18 25 engines Investigation revealed that when the engine is stopped the oil gradually drains out of the pressure chamber that feeds the lifters and is replaced by air When the engine is restarted the air is forced into the lifters Until it gets purged back out the lifters especially 1 intake will be spongy and possibly noisy 102 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 To help reduce the problem we are now using quick purge lifters which have a bit more clearance between the plunger and body The extra clearance allows any air to bleed off more quickly so the lifter will pump up with oil and return to quiet operation The quick purge lifter will be used on most 1998 Command engines Starting And Stopping Procedures of our current production engines are designed to start with the throttle set anywhere between half and full throttle For customer convenience we had been recommending mid throttle for shut down also so the lever would already be in the correct position for restarting The convenience has a downside however An engine that is shut down at mid throttle pumps through more unburned fuel increasing the possibility of afte
157. tion control lever becomes too excessive reverse the above procedure by turning the adjustment screw counterclockwise 1 4 turn BATTERY ACID DRAIN TUBE Clean the access plug and insert it into position using the torx or alien wrench Clean spilled oil from transmission and ACCESS FLUE WRINDH reinstall battery box and battery into tractor When connecting battery be sure to connect the RED bat tery cable first Road test tractor after adjustment and repeat procedure if necessary HOUSING POCKET 25 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 SECTION 11 VST TROUBLESHOOTING The information on the following pages has been provided to help understand the internal opera tion of the VST Do not use this information to attempt any internal repairs Tecumseh s current policy on hydrostatic transaxles that have internal failures is to replace the complete unit This has not changed However Tecumseh would like to provide a failure checklist to assist in making an accurate evaluation of the complete tractor to eliminate any unnecessary replacements Here is a list of items to check and corrective actions to take To properly test the unit for power loss 1 Allow the unit to cool before trying the following steps 2 Put the shift lever in a position that is 1 2 of the travel distance from neutral to forward 3 Place the tractor on a 17 degree grade 4 Drive the tractor up the
158. tor for the 3 amp 70 watt system is entirely new It has an additional green lead wire that connects to the seat interlock circuit If the operator leaves the seat the interlock circuit shorts the green lead to ground The test procedure for the 3 amp 70 watt braking stator follows 105 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Troubleshooting Guide 3 Amp 70 Watt Braking Stator 1 With engine running at 3400 RPM 1 If voltage is more than 12 6 volts measure voltage across battery charging system is OK terminals using a DC voltmeter If voltage is 12 5 volts or less the stator or diode are probably faulty Test the stator and diode Test 2 3 and 4 2 Disconnect the charging lead black 2 If voltage is 5 volts or more stator from the wiring harness winding is OK No 3 With charging lead disconnected 3 If resistance is low in both directions Charge from battery and engine stopped the diode is shorted Replace the diode To measure resistance from charging Battery lead to ground using an ohmmeter Note reading Reverse the leads and measure resistance again In one direction the resistance should If resistance is high in both directions be infinity ohms open circuit With the diode or stator winding is open the leads reversed some resistance Use Test 4 should be measured about midscale on Rx1 range 4 Disconnect the lighting lead yellow 4 If resistance is approximately
159. ts test Charging ground using an AC voltmeter stator using an ohmmeter Braking 3 With the engine stopped measure the 3 If resistance is approximately 0 2 0 4 System resistance from braking lead to ground ohms stator is OK Test using an ohmmeter If resistance is 0 ohms stator is shorted Replace stator If resistance is infinity ohms stator or lighting lead is open Replace stator KOHLER Smart Spark Ignition Systems We thought the problems were behind us but At the time that last year s update book was being written we had initiated some changes that we hoped would end the component failures on Com mand 22 and 25 HP engines The changes did alleviate the earlier failure modes but a new one showed up so we have seen some continued ignition module failures Feedback from the field indicates there is still a good deal of misunderstanding and confusion about the CD ignition systems especially Smart Spark We hope the following review will help correct some of the misconceptions and afford a better understanding of the systems Operation of CD Ignition Systems Two versions of CD ignition systems are used The standard version with fixed timing is used on the 17 20 HP Command Twins The 22 and 25 HP Command Twins and the new CV16 single use Smart Spark a modified CD system which varies the ignition timing to correspond to running speed A Capacitive Discharge With Fixed Timing This system Figure 1 consist
160. uld not allow the piston to go to the top of the cylinder Check dipstick for crankcase level if high change oil and spark plug If oil smells of fuel check carburetor float needle and seat If will not start proceed with Compression Release Test COMPRESSION RELEASE TEST The battery must pass Open Circuit Voltage Test at 12 2 volts or higher Remove engine Spark Plug Place a rag over the spark plug opening If engine turns over without the spark plug installed check for proper valve clearance before you replace or repair the compression release SYMPTOMS OF WIRE HARNESS OR SWITCH ELECTRICAL CURRENT LEAKAGE PROBLEM components or wiring leak electrical current allowing the battery to discharge a discharged battery is a problem when tractor has not been used for several days multiple battery replacements due to a discharged condition ELECTRICAL LEAKAGE TEST Place meter on DC volts scale Place the tractor ignition switch in off position Place meter test leads at black battery cable and negative battery terminal If more than 1 0 volts DC shows on the meter find and repair the source of the voltage leak to ground e POSITIVE CABLE DC VOLTS _ 1 _ CHARGING SYSTEM TEST 7 The battery must pass Open Circuit Voltage Test at 12 20 volts or higher Start Engine Place at full throttle and check engine R P M s with a ta
161. um 3 in one MULCHING blade 1 Use 157033 Premium Hi lift blade for better bagging especially in wet conditions 2 Use 159705 Bahia blade for better quality of cut on pasture type grassES OR Bahia GRASS Part number 137380 Original Equipped 50 Premium Hi lift blade 1 Use 156468 Premium Hi lift thick blade FOR BETTER WEAR 41 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 Why use O E M v belts O E M stands for Original Equipment Manufacturer This is the company that made the product in this case with the v belt drive O E M v belts are designed for the characteristics of the indi vidual drive system This means the v belt will last longer and work properly v belts should be used only in the drive for which the v belt was designed Aftermarket V belts fall into four categories auto parts v belts fractional horsepower electric motor v belts lawn and garden v belts and agricultural replacement v belts Auto parts V belts are designed specifically for cars and trucks These v belts have polyester cords which are designed to shrink when the v belt gets hot as it starts to slip These v belts have mini mal covers and only a few cords They are designed for low horsepower at high RPM with NO misalignment of pulleys Fractional Horsepower Electric Motor v belts usually have designations like 4L or The L is for light duty Normally this v belt is for one 1 horsepower or less an
162. v belt is a cotton polyester blend If you find one of these v belts failed with a hard black residue in the engine pulley remove the residue or replace the pulley Never replace a white cover v belt with a black cover v belt CRT tillers must have a white cover v belt to allow the v belt drive to slip when the tines hit obstructions On CRT tillers the White Cover v belt also elimi nates tine creep and wheel creep A Salt amp Pepper Cover is used when increased v belt traction is needed A Black Cover is used on v belt drives requiring even higher traction for mower drives and tillers In operation this v belt is black and sticky from rubber in the canvas v belt cover Most aftermarket v belts have this type of cover A Cut Side V belt with no cover may be used in some applications A cut side v belt is very aggres sive engaging the pulley What to check when a v belt is replaced There are many reasons that a v belt fails If a problem caused the failure of one v belt that problem must be corrected or the new v belt will also fail in a short period of time Check v belt alignment in the drive add pulley Check mower rake to determine proper mower v belt alignment Check for a bent mower deck causing improper alignment Check for bent idler pulley brackets Check for binding idler pulleys Check mandrel shaft for bearing wear or binding Check pulleys for wear and for deformation Check v belt guards and v belt guides for worn sp
163. varna Parts Call 606 678 9623 or 606 561 4983 FRICTION PACK KIT INSTALLATION 71 143 799026 To install the friction pack kit first take these precautions 1 Park the mower on a level surface 2 Make sure the parking brake has been set Raise the rear of the mower off of the ground and rest it on a stable support Block the front wheels to prevent the mower from rolling off the support Remove the left rear wheel in the operators position to expose the shifting linkage Disconnect the turnbuckle shifting linkage at the pivot point of the control arm and turn the control arm counter clockwise until it stops To help accom plish this it may be necessary to place a 5 16 pin punch in the hole in the shifter shaft just behind the control arm Putting the punch in from the bottom side will provide increased leverage To mount the kit on the transaxle angle the bracket so that it will clear the opening in the bracket for the nut on the shifter shaft Align the two bracket mounting holes up with the axle housing thru holes Fasten the bracket to the housing securing it with the two 2 3 8 diameter self threading bolts included in your kit Place the four 4 belleville washers on the remaining bolt so that the cupped sides face each other followed by a metal washer and a fiber washer Place this assembly through the arced slot in the bracket and the second fiber washer and the control arm securing the entire assembly with the compression nut Return
164. with gear shift lever in neutral position GT BAND BRAKE TRANSAXLE e Slowly depress clutch brake pedal to the point where the motion drive belt stops moving Hold clutch brake pedal in this position and engage PCM parking brake If belt begins to move after en gaging parking brake reset parking brake by depressing clutch brake pedal slightly to next notch on parking brake e Stop engine Screw brake rod back into clevis until clevis pin is against rear edge of slot in brake arm Do not over tighten see IMPOR TANT above JAM NUT 18 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 TRANSAXLES WHAT YOU SHOULD CHECK BEFORE YOU REPLACE THE TRANSAXLE Symptom Hard Shifting Transaxle locked up Eliminate all customer issues Make sure customer is not shifting on the go or is trying to shift on a hill Shifting on the go will damage transaxle shifting on a hill is incorrect due to the gear load Jerking is caused by clutch misuse Do not replace transaxle instruct customer how to use clutch Surging happens when a tractor goes down hill and momentarily picks up speed this is normal Remember you cannot fix something on a transaxle that is normal not broken 1 Place tractor on level ground 2 Remove drive belt from transaxle input pulley 3 If transaxle shifts OK Tractor has a belt guide out of adjustment or belt guide is missing 4 Verify that
165. y the symptom Operate the product to verify complaint Determine what is already known about the problem from past experience service flashes etc Verify all controls are in the proper position PTO switch Ignition switch Checking clutch electrically Check fuse condition Remove fuse and verify the fuse is good Insert circuit breaker from test kit 150834 into fuse holder end for testing purposes Look for cut or loose wires around the clutch wiring and connector If a bad connection or loose wire is found repair using terminal kit number 148691 Note Be certain the 2 pin Molex lug is and connector are securely connected Check for 12 volts at battery Check for 12 volts at the battery and at the plug to verify the clutch PTO switch is good or bypass the switch connect jumper wire from red to red at the PTO switch connector If clutch engages replace switch If not check for 12 volts at the clutch plug Voltage at clutch plug 12 volts is present at the clutch plug then you can assume the switch and battery voltage is good If the clutch still does not engage insert meter leads into the clutch end of the connector and take an ohm s reading If the reading is between 2 40 and 2 90 ohms clutch windings are OK Note When checking amperage the electric clutch should not draw more than 4 amps if it does air gap MUST be checked Checking clutch mechanicaily Check air gap Ifohm reading is good clutch air gap must
166. ymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 SPECIALTY TOOLS AND TEST EQUIPMENT HAND TOOLS AND SUPPLIES FOR ON SITE TECHNICIANS Div 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 Div 92 92 92 92 92 92 92 92 92 92 92 92 92 92 92 Src 150 309 309 150 309 150 150 309 150 150 150 309 150 150 192 150 309 150 150 150 309 150 150 309 150 150 150 150 150 309 150 309 150 150 150 309 150 150 Src 192 192 192 192 192 192 192 192 192 192 192 192 192 192 192 670297 9 16237 9 18874 BT1260 9 51865 19359 19413 KD2424 670314 670103 670169 9 BL612 19368 24 455 02 150834 25 761 02 9 38662 DS 100 BK390 19390 9 KD2286 QE 3 19340 9 KD3245 19435 19436 25 761 18 QE 6 19352 9 52382 19404 9 2134 2CRWC QE 10 19393 9 44544 19353 19063 Part No 45404 76765 80369 80370 87010C 51831 85010C 84010C 56531 66010 58730 82010C 148691 26221 24221 Specialty Tools and Test Equipment Description Air Gap Gauge Tecumseh Air Hose Blow Gun Kit Air Impact Wrench 1 2 Drive Battery Load Tester Milton Bench Vice opens to 5 DC Shunt only works with Fluke 73 Engine Leakdown Tester Feeler Gauge set Flywheel Knock Flywheel Knock Tecumseh Flywheel Knock Tecumseh Grinder Ignition Tester Ignition Tester for K
167. zontal L Head RJ19LM 030 PMA 30W 44 0Z 12HP 12 5HP 13HP Singles Cyl RJ19LM 030 PM4 30W 48 0Z 15HP 15 5HP OHV 2 030 30W 48 0Z 14HP 16 18HP 19HP Opposed Twins RJ19LM 030 30W 48 07 20 Opposed Twin w Filter RJ19LM 030 PM4 30W 56 0Z 13HP 14HP 15HP 16HP 17HP Vanguard Single OHV Intek V RC12YC 030 30W 56 0Z 14HP 16HP 18HP 20HP 22HP Vanguard Twin OHV Intek V RC12YC 030 30W 56 0Z KOHLER ENGINES CV 12 5HP 14HP 14 5HP 15HP 15 5HP 2 040 10W30 64 0Z CV 20 5HP 22HP 22 5HP 25HP RC12YC 030 NONE 10W30 64 0Z M18HP 20HP MV18HP 18 5HP 19HP 20HP RV17YC 035 NONE 30W 56 0Z HONDA ENGINE 5HP GXV140 NGK Brand NGKBPR5ES 030 30W 20 0Z ONAN ENGINES 20HP RS14YC 0025 NONE 30W 56 0Z KAWASAKI 18HP NGK BPMRGA 025 CJ8 10W30 70 0Z NOTE Make sure the correct engine spark plug is used with correct reach and heat range as the use of a incorrect spark plug will cause damage to the customer engine Tractor 1992 and newer with vented decks 3350 RPM or 50 RPM Tractor 1991 and older with standard decks 3550 RPM or 50 RPM Tractor low RPM single cylinder 1800 RPM Tractor low RPM twin cylinder 1400 RPM Rotary mower high RPM 3200 fast Rotary mower low RPM 2600 slow 12 www mymowerparts com For Husqvarna Parts Call 606 678 9623 or 606 561 4983 MAINTENANCE M A CHECK Tractor Riding Mowers Tune engine Check rpm engine speed

Workshop Manual, EHP/ FHP Lawn & Garden Service, 1999

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Workshop Manual, EHP/ FHP Lawn &amp; Garden Service, 1999

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Workshop Manual, EHP/ FHP Lawn & Garden Service, 1999