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1. To adjust the idler position IMPORTANT If adjustment cannot be achieved the drive belt must be replaced 1 Shut off engine allow to cool and remove cowl 2 Ensure control cable has some slight noticeable slack when auger clutch is disengaged bail in lowered position 3 Ensure belt fingers are properly adjusted See To Adjust Belt Finger 4 Loosen idler hardware reposition idler along slot in idler arm and tighten hardware 5 Check for proper extension of control cable spring See To Adjust Auger Control Cable 6 Start engine and ensure auger does not rotate when auger clutch is disengaged 7 Shut off engine 8 Repeat the above steps until proper adjustment is achieved 9 Replace cowl NOTE Due to the need for maximum amount of belt tension to operate the single stage sno thro and the slippage that is encountered with the original belt after the break in period a new shorter replacement belt has been put into the parts system This belt has the origi nal belt number but has the letter A after the part number The new belt will allow a longer run time between adjustment intervals Bail travel should be 4 1 2 to provide proper belt tension If the 4 1 2 travel cannot be obtained the original bail may be replaced with a bail part 03806351 1 32 1 16 1 1 6 cm 1 Idler Arm Brake 2 Idler 3 Slot 4 Auger Clutch Control Cable 5 Belt Fingers Figure 6 OS00532. 4 10 ADJUST BELT FINGER 3HP units have two belt fingers 5HP units have one belt finger With the auger clutch engaged there should be 1 32 to 1 16 1 1 6 cm clearance between the belt finger and drive belt To adjust 1 Loosen bolt holding the belt finger 2 Rotate the belt finger around the bolt to the correct position 3 Tighten bolt SECTION 5 ENGINE 5 1 ENGINE TROUBLESHOOTING The following troubleshooting chart is to be used to The troubleshooting key is generic for 2 cycle engines isolate engine problems and give possible causes and corrective action responses and can be used for several types of engines Use only those possible causes and corrective actions that apply to the unit TROUBLE POSSIBLE CAUSES Refer to Key Below CORRECTIVE ACTION Black Exhaust 20 22 25 29 31 32 33 repair or replace Blue White Exhaust 4 20 25 31 33 34 repair or replace Difficult Starting 5 8 10 20 21 22 29 31 32 33 repair or replace Erratic Running 8 9 10 20 21 26 29 33 59 62 repair or replace Excessive Fuel Consumption 20 22 25 31 32 33 repair or replace Knocking 22 26 29 31 33 36 46 59 repair or replace Loss of Power or System 8 10 20 21 22 25 26 31 32 33 repair or replace Low Cranking Power 2 3 repair or replace Misfiring 10 20 25 26 28 29 32 repair or replace Overheating 19 25 63 repair or replace Poor C
3. 0 x 1 5 7 0 x 1 5 7 0 x 1 5 7 0 x 1 5 7 0 x 1 5 18 x 3 8 18 x 3 8 18 x 3 8 18 x 3 8 18 x 3 8 Discharge Distance ft m 8 30 0 9 9 1 Chute Turning Radius 220 Auger Size in cm 9 0 23 Auger RPM 1200 1220 1200 1220 1200 Auger Clutched Belt Idler Clutch Blower Housing Height in cm 13 25 33 66 Blower Housing Width in cm 22 56 Electric Starter Kit Installed Installed Installed 73700100 Installed Model Number 938012 938015 938016 938305 Engine HSK 850 HSK 600 HSK 850 Fuel to Oil Mix 50 01 50 01 50 01 Fuel Tank Capacity qt L 1 2 1 1 1 2 1 1 1 2 1 1 Fast Idle RPM 3600 4300 3600 Crank Case Capacity oz L N A Engine Oil Type 2 Cycle Spark Plug Gap in cm Type 030 RCJ84 Champion Tire Size in cm 7 0 x 1 5 7 0 x 1 5 7 0 x 1 5 18 x 3 8 18 x 3 8 18 x 3 8 Discharge Distance ft m 3 30 0 9 9 1 Chute Turning Radius 220 Auger Size in cm 9 0 23 Auger RPM 1200 1220 1200 Auger Clutched Belt Idler Clutched Blower Housing Height in cm 13 25 33 66 Blower Housing Width in cm 22 56 Electric Starter Kit Installed 73700100 Installed SECTION 4 GENERAL MAINTENANCE amp ADJUSTMENTS 4 1 CONTROLS AND FEATURES Auger Clutch Bail Recoil Starter Handle Handlebar Knob Chute Deflector Handle Exhaust Discharge Chute Deflector Discharge Chute Auger Housing Aug
4. brackets to lower handle bar You will note that too much effort is required to rotate the chute To reduce that effort remove the three bolts that hold the discharge chute onto the ring and remove the chute Then remove the four screws that attach the ring to the chute gear and remove the ring Now you can remove the detent ball and spring and replace the above parts in reverse order Check to ensure that the gear and pinion marks have not lost their alignment from step 2 Great care must be taken to ensure that the ignition switch wires primer hose and electric starter cable if applicable do not rub on or become entangled in the chute crank gears The electric start cable must be secured with the medium tie wrap to the corner of the chassis The ignition switch wires must be tie wrapped to the neck of the fuel tank with the large tie wrap The wires and primer hose must be held together with the small tie wrap Turn the crank stop to stop several times to ensure there is no rubbing or pinching possible Remove the fuel cap install the cowl and fasten in place with all 10 screws Replace fuel cap D Space and Tooth Identification Marks 1 Crank Spacer 2 Crank Gear 48T 3 Lower Handlebar 4 Recoil Starter Handle Bracket 5 Chute Crank Bracket 6 Chute Crank Assembly Figure 16 150211 Ariens Company 655 West Ryan Street P O Box 157 Brillion WI 54110 0157 920 756
5. chute deflector does not stay in set position tighten fasteners evenly until deflector stays in position Figure 8 Use a T30 Torx drive or a 3 16 19 cm wide straight screwdriver to tighten 938002 938004 938302 Adjust chute deflector control lever pivot bolt nut until the control stays in position Figure 9 When the chute deflector hits its stop for maximum down deflection the chute deflector control lever should hit its stop on housing at the same time Lock in position by adjusting and tightening nuts against bracket Figure 9 Discharge chute may freeze in extreme cold conditions and not rotate freely To correct for this condition the discharge chute handle assembly will need to be removed from the gear discharge chute segment The pocket in the handle assembly for the spring and ball detent will need to be packed with grease The metal ring in which the discharge chute is trapped will need a liberal coat of grease as well Pivot bolt nut Figure 9 6 3 UNIT UPGRADES Discharge Deflector Control Force 5HP 938002 938004 938302 The discharge deflector control force is dependent on the bolt through the compression spring in the deflector handle assembly and by the construction of the housing assembly To correct breakage of the housing alignment pins that go into the handlebar tube remove them and replace with a flat head screw The flat head screw will hold the deflector housing securely
6. order by operator SECTION 3 SPECIFICATIONS Model Number 938001 938002 938003 938004 938006 938301 938302 938301 Engine HSK 600 HSK 850 HSK 600 HSK 850 HSK 600 Fuel to Oil Mix 50 01 50 01 50 01 50 01 50 01 Fuel Tank Capacity qt L 1 2 1 1 1 2 1 1 1 2 1 1 1 2 1 1 1 2 1 1 Fast Idle RPM 4300 3600 4300 3600 4300 Crank Case Capacity oz L N A Engine Oil Type 2 Cycle Spark Plug Gap in cm Type 030 RCJ84 Champion Tire Size in cm 7 0 x 1 5 7 0 x 1 5 7 0 x 1 5 7 0 x 1 5 7 0 x 1 5 18 x 3 8 18 x 3 8 18 x 3 8 18 x 3 8 18 x 3 8 Discharge Distance ft m 3 30 0 9 9 1 Chute Turning Radius 220 Auger Size dia in cm 9 0 23 Auger RPM 1220 1200 1220 1200 1200 Auger Clutched Belt Idler Clutched Blower Housing Height in cm 13 25 33 66 Blower Housing Width in cm 22 56 Electric Starter Kit 73700100 Installed Installed Installed 73700100 Model Number 938007 938008 938009 938010 938011 938303 938004 938305 Engine HSK 850 HSK 600 HSK 850 HSK 600 HSK 850 Fuel to Oil Mix 50 01 50 01 50 01 50 01 50 01 Fuel Tank Capacity qt L 1 2 1 1 1 2 1 1 1 2 1 1 1 2 1 1 1 2 1 1 Fast Idle RPM 3600 4300 3600 4300 3600 Crank Case Capacity oz L N A Engine Oil Type 2 Cycle Spark Plug Gap in cm Type 030 RCJ84 Champion Tire Size in cm 7
7. will not tip over during maintenance Fuel is highly flammable and its vapors are explosive Handle with care Use an approved fuel container NO smoking NO sparks NO flames ALWAYS allow engine to cool before servicing NEVER fill fuel tank when engine is running or hot from operation NEVER fill or drain fuel tank indoors Replace fuel cap securely and clean up spilled fuel ALWAYS maintain unit in safe operating condition Damaged or worn out muffler can cause fire or explosion Keep all hardware properly tightened Cleaning Keep unit free of ice or other debris Clean up oil or fuel spills Storage For unit storage or extended storage NEVER store with fuel in fuel tank inside a building where any ignition sources are present Allow engine to cool completely e For extended storage clean unit thoroughly See Engine Manual for proper storage Transport Use extra care when loading or unloading unit onto trailer or truck Secure unit chassis to transport vehicle NEVER secure from rods or linkages that could be damaged DO NOT transport machine while engine is running Spark Arrester This product is equipped with an internal combustion type engine DO NOT use unit on or near any unimproved forest covered or brush covered land unless exhaust system is equipped with a spark arrester meeting applicable local state or federal laws A spark arrester if it is used must be maintained in effective working
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9. 56 Damaged valve stem oil deflector if incorrect type fitted 15 Incorrect use of cold start 36 Worn or damaged bearings 57 Coolant level too low equipment 16 Faulty cold start equipment 37 Insufficient oil in sump 58 Blocked sump strainer 17 Broken fuel injection pump 38 Bad defective oil temperature switch 59 Broken valve spring drive 18 Incorrect fuel pump timing 39 Oil pump worn 60 Exhaust or vacuum pipe leak 19 Incorrect valve timing 40 Pressure relief valve sticking open 61 Bad or defective water temperature switch 20 Poor compression 41 Pressure relief valve sticking closed 62 Bad spark plug s 21 Blocked fuel tank vent 42 Broken relief valve spring 63 Improper amount of oil in fuel mixture 5 13 5 2 STORAGE When storing unit for extended periods of time remove all fuel from tank and carburetor run dry Refer to Engine Manual 5 3 CHECK FASTENERS Keep all nuts bolts and screws properly tightened 5 4 CLEAN ENGINE COOLING SYSTEM Engine is air cooled Air must circulate freely around engine to prevent overheating Every year more often if conditions require remove cooling shrouds and clean cooling fins Clean external surfaces of engine of dust dirt and oil deposits which can contribute to improper cooling Refer to Engine Manual IMPORTANT DO NOT operate engine with cooling shrouds removed Engine overheating and damage will result The engine on the Sno Thro is a 2 cycle design The lubricating oil is mi
10. are properly adjusted See To Adjust Belt Finger EN A and To Adjust Auger Control Cable in General Maintenance amp Adjustments 10 Remove fuel cap and replace cowl 11 Replace fuel cap 1 Hub Cap 2 External Retaining Ring 3 1 32 1 16 1 1 6 cm Figure 11 1 Extension Spring 6 Auger Clutch Control 2 Idler Arm Brake Cable 3 Idler 7 Drive Belt 4 Slot 8 Auger Drive Pulley 5 Belt Fingers 9 Cap Screw Washer Auger Shaft Figure 10 sada SECTION 8 ELECTRICAL 8 1 ELECTRIC STARTER Electric starter is not equipped with a thermal cutout switch DO NOT crank engine for more than a total of 20 seconds without allowing electric starter to cool down for 10 minutes Failure to do this can severely damage electric starter 8 2 SNO THRO CABLE ROUTING IMPORTANT This procedure should be done on all units to prevent wiring from getting caught in the chute crank gears Place the Sno Thro on a raised work surface Remove ignition key and drain all fuel from the fuel tank Remove the gas cap and remove the engine cowl part 38005 Retain all hardware for reassembly later Remove the cable tie from the two green ignition wires and from fuel tank support bracket Remove the fuel tank from the unit and retain the cable tie around the tank neck Measure 10 of fuel line from carburetor and trim off excess reference A see Figure 12 Turn eyelet on top of engine containing the green ground wire to the tw
11. d position and pull recoil starter handle Auger should rotate with the turning of the engine Release the auger clutch bail If the auger clutch bail moves freely with no resistance before contacting handlebar adjust or repair NOTE The unit will require control cable and or idler adjustment after 20 hours of operation on a new unit or new drive belt See Service and Adjustments for instructions WARNING IMPROPER ADJUSTMENT could result in death or serious injury AUGER BRAKE MUST DISENGAGE when clutch is engaged BRAKE MUST STOP AUGER WITHIN 5 SECONDS of releasing auger clutch bail 4 6 ADJUST AUGER CONTROLS WARNING IMPROPER ADJUSTMENT could result in death or serious injury AUGER BRAKE MUST DISENGAGE when clutch is engaged BRAKE MUST STOP AUGER WITHIN 5 SECONDS of releasing auger clutch bail 4 7 ADJUST CLUTCH For brake to function properly there must ALWAYS be some slight noticeable slack in the control cable inner wire when the impeller clutch bail is disengaged lowered position This allows extension spring to pull idler arm brake braking belt Bail should travel 6 3 4 to 7 1 4 17 1 18 4 cm before contacting handlebars on models 938006 938012 938301 938303 If brake does not stop impeller within 5 seconds of releasing impeller clutch bail inner wire slack must be adjusted Models 938001 938009 938301 931303 There should be 1 8 to 3 16 extension of cable spring when clutch bai
12. d visibility and light Fuel is highly flammable and its vapors can explode Use ONLY approved RED fuel containers NO Smoking NO Sparks NO Flames Allow engine to cool before servicing NEVER fill fuel tank when engine is running hot or unit is indoors Abnormal Vibrations are a warning of trouble Striking a foreign object can damage unit Stop unit and engine Wait for all moving parts to stop Remove wire from spark plug Inspect unit and make any necessary repairs before restart Hazardous Slopes DO NOT operate on steep slopes Avoid operating on slopes When you must operate on a slope travel up and down the slope Never operate cross a slope Never operate on a slope greater than 10 degrees Child Safety NEVER allow children to operate or play on or near unit Be alert and shut off unit if children enter area Personal Safety Only trained adults may operate unit Training includes actual operation NEVER operate unit after or during the use of medication drugs or alcohol Safe operation requires your complete and unimpaired attention at all times NEVER allow anyone to operate the unit when their alertness or coordination is impaired DO NOT operate unit without wearing adequate outer garments Wear adequate safety gear and protective gloves Wear proper footwear to improve footing on slippery surfaces Protect eyes face and head from objects that may be thrown from unit Wear appropriate hearing pr
13. er 10 Scraper Blade 11 Discharge Chute Rotation Handle 12 Fuel Tank and Cap DNA O1 ND 13 Cowl 14 Auger Control Cable 15 Upper Handlebar 16 Lower Handlebar 17 J Bolt 18 Primer Bulb 19 lgnition Switch 20 Fuel Level Indicator 21 Starter Button optional 22 Power Cord optional 23 Choke Control Knob 050241 OS1500 Figure 2 4 9 4 2 FILLING THE FUEL TANK Check fuel level by looking at fuel level indicator on rear of unit Add fuel as required WARNING FLAMMABLE FUEL and its EXPLOSIVE VAPORS can result in death or serious injury Handle fuel with extreme care ALWAYS use an approved fuel container No Smoking No Lighted Materials No Open Flames Allow engine to cool before any service ALWAYS clean up any spilled fuel Add fuel to fuel tank IMPORTANT Two cycle engines require that oil be mixed with fuel Failure to mix oil with fuel will result in seizure and severe damage to engine DO NOT use gasohol or gasoline containing alcohol because alcohol will cause internal parts to deteriorate See Engine Manual for correct type and grade of fuel Stop engine and allow to cool See engine manual for proper fuel oil mixture Clean fuel cap and surrounding area to prevent dirt from entering fuel tank Remove cap 6 Fill fuel tank with mixture Tank capacity is 1 2 quarts 1 1 liters NOTE Fuel mixture left standing for prolonged periods wi
14. gure 12 On 938004 the electric start cable will need to be held in place with a cable tie to clear chute crank gear Drill a 1 4 hole by measuring 1 4 down and out 1 4 from recess in center of Sno Thro frame reference J see Figure 14 Attach cable ties in the proper locations shown in the photos as references K L and M Recheck cable and wiring routings before reinstalling engine cover Return machine to stock or customer ref L cable tie ref G install cable clamp ref D drill 1 8 hole Right side as of cable routing and anchor point Figure 13 ref K ref J cable io drill 1 4 hole Rear photo of cable routing and anchor points Figure 14 8 19 SECTION 9 CHUTE CRANK KIT 9 1 CHUTE CRANK KIT for use on models 938010 015 016 305 Instructions 1 WARNING FAILURE TO FOLLOW INSTRUCTIONS could result in personal injury and or damage to unit Read understand and follow all safety practices in Owner Operator Manual before beginning Remove cowl from unit by loosening 8 screws at lower front sides Remove two screws at rear corners and remove fuel cap After removing cowl replace fuel cap to avoid spills and fumes Install flange bushing in discharge chute rotation bracket with flange toward centerline of chute Then hold the 18 tooth chute pinion in place in front of the bushing by rolling it in place in mesh with the chute gear The ident
15. ification marks on pinion and gear must line up with each other see Figure 15 1 Pinion Discharge Chute 18 T 2 Flange Bushing 3 Crank Pinion 12 T 4 Chute Crank Shaft 5 Internal Hair Pin 6 Chute Assembly Crank 7 Knob 8 Crank Gear 48 T Figure 15 OS1650 3 Install the 12 tooth pinion on the transfer shaft so that the drive tang stops are seated in the notches in the pinion Insert the shaft through the hole in the chassis through the flange bushing and finally through the 18 tooth chute pinion Align the hole in the shaft with the holes in the pinion Install the small hair pin through the holes so that it seals over the hub of the pinion 4 Remove nut from bolt that holds recoil starter Handle bracket in place Install the chute crank assembly beneath the lower handlebar by starting end through hole in chassis Hold crank spacer and then 48 tooth gear in place sliding only as far as needed to get them started With crank knob straight up and discharge chute straight forward check that 48T gear meshed with 12T pinion at space and tooth identification marks Align if necessary Insert cotter pin taped to chute crank assembly through 48T gear and chute crank shaft Minor movement of the crank Shaft or discharge chute handle may be needed to align holes Rotate chute crank to access cotter pin and secure pin by bending ends over Reinstall nut securing chute crank and starter handle
16. l is held against handlebar Models 938010 938012 A properly adjusted clutch must extend control cable Spring approximately 1 4 to 3 8 before clutch bail contacts handlebar A properly adjusted clutch must show a noticeable increase in resistance caused by stretch of control cable spring before impeller clutch bail contacts handlebar As drive belt seats and wears increase in resistance will occur closer to handlebar contact If no resistance occurs inner wire slack must be adjusted 4 8 IMPELLER CONTROL CABLE ADJUSTMENT 1 Shut off engine allow to cool and remove cowl 2 Loosen locknut on threaded section of control cable adjusting feature Figures 4 and 5 3 Turn solid section to remove almost all slack in cable 4 Hold the solid section with a pliers and gently with a small wrench tighten the locknut IMPORTANT If there is still no resistance the idler position must be adjusted See Figure 6 Locknut Figure 4 os0011 5 Solid Section 1 Control Cable Spring 2 Adjusting Feature 3 Locknut 4 Threaded Section Figure 5 081220 4 9 ADJUST IDLER POSITION The idler must be as close as possible to the drive belt when the auger clutch is disengaged but not so close that it causes auger rotation WARNING ROTATING PARTS can cut off body parts Keep hands and feet away Loose clothing long hair or scarves can get caught in rotating parts and cause death or serious injury
17. lert against unsafe practices 2 3 NOTATIONS NOTE General reference information for proper oper ation and maintenance practices IMPORTANT Specific procedures or information required to prevent damage to unit or attachment 2 4 PRACTICES AND LAWS Practice usual and customary safe working precautions for the benefit of yourself and others Understand and follow all safety messages Be alert to unsafe conditions and the possibility of minor moderate or serious injury or death Learn applicable rules and laws in your area 2 5 REQUIRED OPERATOR TRAINING Original purchaser of this unit was instructed by the seller on safe and proper operation If unit is to be used by someone other than original purchaser loaned 2 7 CLEANING AND STORAGE WARNING AVOID SHARP EDGES which can cut Movement of parts can cut off fingers or a hand Wear gloves and use extreme caution when servicing IMPORTANT Never spray unit with water or store unit outdoors to help prevent sealed bearing rust or corrosion Water can seep into sealed bearings and reduce component life Bearings are sealed against dirt and debris only A unit that is excessively dirty should be cleaned before work starts Cleaning will occasionally uncover trouble sources Dirt and abrasive dust reduce the efficient work life of parts and can lead to costly replacement When taking unit out of extended storage 1 Check for any damage or loo
18. ll begin to separate thoroughly shake mixture before use BA DN O1 7 Replace fuel cap and tighten ALWAYS place unit in open or well ventilated area WARNING ACCIDENTAL ENGINE START UP can cause death or serious injury ALWAYS stop engine remove key and wait for moving parts to stop before performing maintenance or service HOT SURFACES can cause death or serious injury DO NOT touch parts which are hot from operation ALWAYS allow parts to cool CAUTION FUEL SPILLS may result in minor or moderate injury and or damage to unit If unit must be tipped remove enough fuel so that no spills will occur 4 3 SERVICE POSITION Place unit on a flat level surface 4 4 ADJUST DISCHARGE CHUTE DEFLECTOR DANGER ROTATING PARTS will cause serious injury or death NEVER reach into discharge chute or housing while engine is running If discharge chute deflector does not stay in set position during operation adjust chute by tightening fasteners evenly until deflector stays in position NOTE Use a T30 torx drive or a 3 16 19 cm wide straight screwdriver to tighten Fasteners Figure 3 OS0181 4 5 CHECK CLUTCH FUNCTION WARNING FAILURE OF CLUTCHES OR BRAKES may result in death or serious injury Check clutch and brake function before each use Repair or adjust before operation With key in STOP position squeeze auger clutch bail to Engage
19. o o clock position reference B and wrap a 2 piece of electrical tape 2 up from the eyelet taping the two wires together reference C On electric start unit the green wires should be routed over the electric start cable Measure and drill a 1 8 hole in the upper right corner of the engine blower housing 5 8 from each edge reference D Figure 13 Cover carburetor before drilling to keep particles out of carburetor throat Measure and drill a 3 8 hole for the primer hose 2 down and 5 8 out of the corner reference E Remove primer hose from carburetor and reroute through the new hole and reattach to the carburetor reference F see Figure 12 ref H ref M chute cable cable tie Figure 12 ref cable tie ref A gas line hose ref E drill 3 8 hole ref C electric tape ref B eyelet ref F primer hose Install cable clamp onto remote deflector cable 25 from handlebar and at the start of the black protective covering reference G see Figure 13 The hole for the clip should be in the down position Attach the clip to the engine blower housing with the self tapping screw Excess cable should be pulled up and out of blower behind discharge chute reference H Reinstall fuel tank into Sno Thro with hardware removed earlier place cable tie around fuel tank neck with green ignition wires Check location of green ignition wires to chute crank gear for proper clearance reference 1 see Fi
20. ompression 25 28 29 31 32 33 34 59 repair or replace Starts and Stops 6 10 62 repair or replace see electrical systems see engine service manual Vibration 20 25 26 29 33 48 49 repair or replace Will Not Crank 2 3 charge battery or replace Will Not Start 6 8 10 21 22 62 repair or replace see electrical systems see engine service manual TROUBLESHOOTING KEY 1 Restriction in air cleaner 22 Incorrect grade of fuel 43 Faulty suction pipe 2 Bad electrical connection 23 Sticking throttle restricted movement 44 Choked oil filter 3 Faulty starter motor 24 Exhaust pipe restriction 45 Bad solenoid switch 4 Incorrect grade of lubricating 25 Leaking cylinder head gasket 46 Incorrect piston height oil 5 Low cranking speed 26 Overheating 47 Damaged fan 6 Fuel tank empty 27 Cold running 48 Faulty engine mounting 7 Controls not in correct 28 Incorrect tappet adjustment 49 Incorrectly aligned flywheel and or operation position flywheel housing 8 Blocked fuel feed line 29 Sticking valves 50 Faulty thermostat 9 Faulty fuel lift pump 30 Incorrect high pressure pipes 51 Restriction in water jacket 10 Choked fuel filter 31 Worn cylinder bores 52 Loose fan belt 11 Battery capacity low 32 Pitted valves and seats 53 Choked radiator 12 Air in fuel system 33 Broken worn or sticking piston 54 Faulty water pump ring s 13 Faulty fuel injection pump 34 Worn valve stems and guides 55 Choked breather pipe 14 Faulty fuel injectors or 35 Restriction in air cleaner
21. or your safety and the safety of others always read understand and follow all DANGER WARNING and CAUTION messages found in manuals and on safety decals Directional Reference All reference to left right front or rear are given from the operator in the operator position and facing the direction of forward travel 1 2 SERVICE AND REPLACEMENT PARTS When ordering publications replacement parts or making service inquiries know the Model and Serial numbers of your unit and engine Numbers are located on the product registration form in the unit literature package They are printed on a serial number label located on the frame of your unit Serial Number Figure 1 1 3 PRODUCT REGISTRATION A warranty registration card must be filled out signed and returned at the time of purchase This card activates the warranty Claims meeting requirements during limited warranty period will be honored 1 4 UNAUTHORIZED REPLACEMENT PARTS Use only Ariens replacement parts The replacement of any part on this vehicle with anything other than an Ariens authorized replacement part may adversely affect the performance durability or safety of this unit and may void the warranty Ariens disclaims liability for any claims or damages whether warranty property damage personal injury or death arising out of the use of unauthorized replacement parts 1 5 DISCLAIMER Ariens reserves the right to discontinue make changes
22. otection Avoid Sharp Edges Sharp edges can cut Moving parts can cut or amputate fingers or a hand Wear gloves to service unit when handling sharp edges ALWAYS keep hands away from any pinch points DO NOT touch unit parts which might be hot from operation Allow parts to cool before attempting to maintain adjust or service NEVER place your hands or any part of your body or clothing inside or near any moving part while unit is running DO NOT wear loose clothing or jewelry and tie back hair that may get caught in rotating parts Keep children and people away from unit during operating Never direct discharge towards persons or property that may be injured or damaged by thrown objects Use extreme caution on gravel surfaces Stay alert for hidden hazards or traffic Deflected materials can cause injury and property damage Always stand clear of the discharge area when operating this unit 2 5 Fumes from engine exhaust can cause injury or death DO NOT run engine in an enclosed area Always provide good ventilation Allow hot parts to cool Keep unit free of dirt stones and other debris Clean up oil or fuel spills Service Before cleaning removing clogs or making any inspections repairs etc disengage clutch es stop unit and engine remove key allow moving parts to stop Allow hot parts to cool Before tipping unit up onto housing remove enough fuel so no spills will occur Ensure unit is secure and
23. riens Sno Thro Service Manual Models 938001 004 006 012 015 016 301 305 SS 00041000 06 00 Printed in USA TABLE OF CONTENTS Section 1 Introduction 1 3 Section 5 Engine 5 13 1 1 The Manual 1 3 5 1 Engine Troubleshooting 5 13 1 2 Service and Replacement Parts 1 3 5 2 Storage 5 14 1 3 Product Registration 1 3 5 3 Check Fasteners 5 14 1 4 Unauthorized Replacement Parts 1 3 5 4 Clean Engine Cooling System 5 14 1 5 Disclaimer 2222 aR ES 1 3 5 5 Remove Engine 5 14 1 6 Technical Service Communications 1 3 Section 6 Auger and Discharge Chute 6 15 Section 2 Safety 2 4 6 1 AUGER ak ne De a 6 15 2 1 Safety Alerts 2 4 6 2 Discharge Chute Deflector 6 15 2 2 Signal Words 2 4 6 3 Unit Upgrades 6 16 2 3 Notations 2 4 Section 7 Drive Train 7 17 2 4 Practices and Laws 2 4 7 1 Replace Drive Belt 7 17 2 5 Required Operator Training 2 4 7 2 Replace Wheels 7 17 SD Noha tcne Shes 24 Section 8 Electrical 8 18 Sf CS ening ANd ee ae 8 1 Electric Starter 8 18 as aloy kahe Waa pet eee P
24. s used in decals on the unit and with proper operation procedures in this manual They alert you to the existence and relative degree of hazards Understand the safety message It contains important information about personal safety on or near the unit DANGER IMMINENTLY HAZARDOUS SITUATION If not avoided WILL RESULT in death or serious injury rented or sold ALWAYS provide this manual and any needed safety training before operation 2 6 PREPARATION Before starting any removal of parts proper preparation is very important for efficient work A clean work area at the start of each job will allow you to perform service repairs easily and quickly To reduce the incidence of misplaced tools or parts place removed components with all attaching hardware in the disassembly order on a clean work surface Organization is a key part of proper reassembly Tools instruments and parts needed for the job should be gathered before work is started Interrupting a job to locate tools or parts is a needless delay A list of required special tools has been included in this manual CAUTION Remove enough fuel so that no spillage will occur Remove battery to prevent spillage of electrolyte N WARNING POTENTIALLY HAZARDOUS SITUATION If not avoided COULD RESULT in death or serious injury CAUTION POTENTIALLY HAZARDOUS SITUATION If not avoided MAY RESULT in minor or moderate injury It may also be used to a
25. se parts Repair replace or tighten hardware before operation 2 If a preservative fluid was used in fuel tank drain and discard Fill fuel tank with fresh new fuel 2 8 SAFETY RULES Walk Around Inspection Complete a walk around inspection of unit and work area to understand Work area Your unit All safety decals Work Area ALWAYS check overhead and side clearances carefully before operation ALWAYS be aware of traffic when operating along streets or curbs ALWAYS keep hands and feet within the limits of the unit Keep children people and animals away Keep children out of work area and under watchful care of a responsible adult Keep area of operation clear of all toys pets and debris Stay alert for hidden hazards DO NOT run engine in an enclosed area Always provide good ventilation Unit ALWAYS keep protective structures guards and panels in good repair in place and securely fastened NEVER modify or remove safety devices Operation Understand How to operate all controls The functions of all controls e How to STOP in an Emergency Speed ranges Before starting engine disengage auxiliary power Always back up slowly Always look down and behind before and while backing Never leave a running unit unattended ALWAYS shut off auxiliary power lower throttle setting and stop engine before leaving unit ALWAYS remove key to prevent unauthorized use ALWAYS operate unit in goo
26. t gt 8 2 Sno thro Cable Routing 8 18 Ne ee gL aga nee weal ee 3 7 Section 9 Chute Crank Kit 9 20 Section 4 General Maintenance amp 9 1 Chute Crank Kit 9 20 Adjustments 4 9 4 1 Controls and Features 4 9 4 2 Filling The Fuel Tank 4 10 4 3 Service Position 4 10 4 4 Adjust Discharge Chute Deflector 4 10 4 5 Check Clutch Function 4 10 4 6 Adjust Auger Controls 4 11 4 7 Adjust Clutch 4 11 4 8 Impeller Control Cable Adjustment 4 11 4 9 Adjust Idler Position 4 11 4 10 Adjust Belt Finger 4 12 SECTION 1 INTRODUCTION 1 1 THE MANUAL It is the purpose of this manual to provide complete instructions for service maintenance disassembly repair and installation of the mechanical components for the 932 Sno Thro Dealer trained service personnel should use this manual as a supplement to and reminder of the training sessions conducted by the company Read all information for servicing a part of system before repair work is started to avoid needless disassembly Operation Before operation of the unit carefully and completely read manuals supplied with the unit The contents will provide you with an understanding of safety instructions and controls during normal operation and maintenance Safety Messages F
27. to and add improvements upon its products at any time without public notice or obligation The descriptions and specifications contained in this manual were in effect at printing Equipment described within this manual may be optional Some illustrations may not be applicable to your unit 1 6 TECHNICAL SERVICE COMMUNICATIONS Ariens Technical Service communicates information to the field using Service Letters Service Bulletins Product Notices and Campaigns Each communication signifies a type of information and priority The dealer is responsible to carry out the directive provided in the communication The types of communication are Service Letter General technical information for the dealer Technical information on how to service the product and product improvements Service Bulletin Notification to update products to resolve certain issues or a notification of a policy change Product Notices Notification of limited product located in a certain region This is a limited distribution to only those who received the product involved Campaigns Notification of a safety related issue All product must be updated and are tracked by the factory until all units are corrected SECTION 2 SAFETY 2 1 SAFETY ALERTS Look for these symbols to point out important safety precautions They mean Attention Personal Safety Is Involved Become Alert Obey The Message 2 2 SIGNAL WORDS The safety alert symbol i
28. to the handlebar The compression spring will then only be required to control the chute deflector lever force Blower Housing Filling With Snow Snow may enter the engine compartment and get trapped inside with no exiting points To control the amount of snow that would be trapped inside the engine compartment two 3 holes will need to be added to the chassis bottom and allow the snow to exit To control the snow from entering the drive belt area use 538012 3 HP Update Kit 938001 S N 000101 006245 938003 S N 000101 002350 938301 S N 000101 000251 53801300 5HP Update Kit 938002 S N 000101 00 6280 938004 S N 000101 003900 938302 S N 000101 000241 New holes will need to be drilled for the two additional screws in the front of the blower housing where the right and left bearing support plates come into contact with the impeller housing SECTION 7 DRIVE TRAIN 7 1 REPLACE DRIVE BELT 7 2 REPLACE WHEELS 1 Remove fuel cap 1 Support unit with wheels off the ground 2 Remove cowl and replace fuel cap 2 Remove hub cap 3 Disconnect extension spring on idler arm brake 3 Pry E ring clip from shaft 4 Remove cap screw and washer from end of auger 4 Remove wheel 5 Remove old belt 6 Install new belt onto pulleys 7 Reinstall auger drive pulley and secure with washer and cap screw 8 Reconnect extension spring to idler arm brake 2 9 Ensure belt finger s and auger clutch control cable 1 x
29. xed with the gasoline Consult the engine manufacturers manual for the proper grade and mix ratio 5 5 REMOVE ENGINE 1 Remove gas cap and top cowling 2 Remove fuel line at the engine and drain fuel into a suitable container Save for reuse or dispose of properly 3 Remove drive belt from engine pulley 4 Remove bolt and washer from engine shaft and slide drive pulley halves from shaft 5 Disconnect throttle cable from engine 6 On models with recoil starters unbolt the bracket that holds the recoil handle to the lower handle bar 7 Remove wiring for key switch 8 Unscrew bolts from shaft side of engine 9 Unscrew mounting nuts on recoil side 10 Disconnect choke cable 11 Remove engine Install in reverse order 1 Hex Bolt 2 Drive Pulleys 3 Engine Mounting Bracket Figure 7 PS0034 SECTION 6 AUGER AND DISCHARGE CHUTE 6 1 AUGER The auger consists of two halves bolted together over the auger shaft To replace the auger 1 Unscrew the twelve self tapping screws 2 Remove one half 3 Rotate second half out NOTE The screws tap into a metal plate Save these for reassembly Check roll pins in auger shaft and replace as needed Assemble in reverse order 1 Discharge Chute Rotation Bracket 2 Self Tapping Bolt Plate 3 Half Auger 4 Auger Shaft Figure 8 PS0063 6 2 DISCHARGE CHUTE DEFLECTOR 938001 938003 938006 938009 938301 938303 If
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