Sears 247.79964 User's Manual
Contents
1. Drain the gasoline and oil from the chipper vacuum Tip the unit backward so that it rests on the handles Remove the frame cover by removing eight self tapping screws from underneath the chipper vacuum Refer to figure 14 Remove the idler pulley bracket as follows See figure 25 Take the tension off the belt by pivoting the idler pulley toward you and line up the holes in the idler bracket assembly Insert a or simi lar object through the holes to hold the idler pulley in this position Remove three self tapping screws and lift off the idler bracket assembly Engine Pulley 17 62 3 der Bracket Wee Ate Self Tapping Screws FIGURE 25 9 Remove the hex boit and lock washer from the engine pulley See figure 25 Slip the engine pulley off the engine shaft and remove the belt from the pulley 9 Loosen the nut on the stop bolt until there is clear ance between the support bracket and the friction wheel disc See figure 26 Slip the belt between the friction whee and friction wheel disc Remove and replace belt Reassembie following instruction in reverse order NOTE The support bracket must rest on the stop bolt after the new belt has been assembled 17 Support op Bolt Bracket rase Seel 5 Loosen ee Nut d 2 De Friction Wheel Disc FIGURE 26 CARBURETOR ADJUSTMENT WARNING IF ANY ADJUSTMENTS ARE MADE TO THE ENGINE WHILE THE EN2. a 1 4 4 sch D SEARS CRAFTSMAN 9 CHIPPER VACUUM MODEL NO 247 799640 Repair Parts ET 13 14 781 0598 BLADE FLAIL HOUSING BLADE FLAIL HOUSING COVER CHIPPER NUT HEX LOCK KNOB NUT HEX LOCK 781 0599 781 0627 1 1629 0241 HARNESS CHIPPER VAC 1 712 3010 NUT HEX GR 5 3 2 681 0059 HOUSING ASSY INNER 1 719 0326 SCREEN 1 3 681 0060 HOUSING ASSY OUTER 1 15 723 0438 SEAL RUBBER 2 4 1710 0382 SCREW HEX 2 16 725 1700 COVER SWITCH 1 5 710 0604 SCREW HEX SELF 10 725 3166 SNAP MOUNT SWITCH 1 6 710 0607 SCREW HEX SELF TAP 8 726 0272 CLAMP 1 7 SCREW HEX 3 731 1613 COVER SWITCH 1 8 SCREW HEX SELF TAP 2 736 0119 WASHER LOCK 3 9 SCREW HEX 2 736 0242 WASHER BELL 3 2 1 3 1 4 1 712 3004A 20 SEARS CRAFTSMAN 9 CHIPPER VACUUM MODEL 247 799640 Repair Parts 9 Og PART BCE ere 1 681 0078 IMPELLER ASSY COMP INCL REF NOS 2 THRU 12 710 1273 SCREW HEX 736 0217 WASHER LOCK 736 0247 WASHER FLAT 681 0078 IMPELLER ASSY 711 0833A PIN CLEVIS 710 1054 SCREW FLAT HEAD 712 0411 NUT HEX LOCK 715 0249 PIN ROLL SPRING 719 0329 BLADE FLAIL 736 0119 WASHER LOCK 742 0544 BLADE CHIPPER BPW CO AH PW wh et wt mb 2 3 4 5 6 7 8 9 0 1 2 LIM 2 79 4 E PART NO DESCRIPTION 6
3. rene 9 10 Cacher E 7 8 9 Repair Replacement Parts 19 29 Customer Responsibilities 4 12 13 Responsibilities 4 12 13 Safety Rules 222 2 2 000 00 2 3 NEE 12 Sharpening 15 Maintenance gege nent 12 13 Spark Le 13 SEG L e 11 Specifications 4 STOPPING susen 9 11 Stora ga te 14 ep 14 Table of menant G 5 EE 10 Trouble Shooting ne rente ares 18 L U Beenie 12 2 2 0 600 00 14 15 URBOGKING 2 6 W ler A ACCESSORIES These accessories were available when the chipper vacuum was purchased They are also available at most Sears retail outlets catalog and service centers Most Sears stores can order repair parts for you when you provide the model number of your chipper vacuum ENGINE Air Filter CHIPPER VACUUM ASSEMBLY INSTRUCTIONS Support Bracket Wave Washer Shoulder 7 gt lt 8 Washer d FIGURE 2 FIGURE 3 IMPORTANT This unit is shipped WITHOUT GASO LINE or OIL in the engine After assembly see opera tion section of this manual for proper f
4. Hex Boit Flat Washer Hex Nut 9 Screws FIGURE 18 Remove the two hex bolts and hex nuts which extend through the housing Lift the flail screen from inside the housing See figure 19 Screen Hex Bolts Hex Nuts FIGURE 19 Clean the screen by scraping or washing with water Reinstall the screen NOTE Be certain to reassemble the flail screen with the curved side down as shown in figure 19 SHARPENING OR REPLACING CHIPPER BLADES Disconnect the spark plug wire and move away from the spark plug Remove the screen as instructed in the previ ous section Remove the plastic belt cover on the front of the engine by removing the two self tapping screws See figure 20 15 Self Tapping Screws FIGURE 20 Remove the access plate by removing two hex lock nuts See figure 21 TT I e dees SX SOS Seege Ss Hex FIGURE 21 Locate one of the chipper blades in the access plate opening by rotating the impeller assembly by hand Remove the blade using a 3 16 allen wrench on the outside of the blade and 1 2 wrench on the impeller assembly inside the housing Torque hardware to 250 350 inch pounds Remove the other blade in the same manner Replace or sharpen blades If sharpening make certain to remove an equal amount from each blade in reverse order NOTE Make certai
5. If you need a pressure test part 759 3742 contact your central distributor This kit includes an instructional video and is available for loan or purchase You will be reimbursed for the cost of shipping and handling on a warranty job if you used a test kit on loan and include the amount on the claim form Seal kits are as follows Fisher cylinders retaining ring end cap so 753 0864 Best Metal cylinders thread end cap Procedure for Resealing Hydraulic Cylinders On Machine Fisher Cylinders Snap Ring Type NE 716 0769 719 0773 Same Par Nou ect Clean cylinder wedge beam area Fully retract cylinder rod into cylinder stop engine With engine off move control valve back and forth several times to be sure there is no pressure in system With a clean catch container in place disconnect pump to control valve hose from pump fitting and insert end into container Plug fitting on pump with plastic cap or tape This is to prevent dirt from entering fitting Remove 4 bolts securing the log dislodger and remove dislodger Remove bolt through wedge and cylinder rod Slide wedge all the way forward on the beam till it meets the base plate No need to remove wedge from beam 7 Lift rod up and place wood block under cylinder barrel to hold assembly at an angle This will allow for rod removal Place control valve into detent position Using a wood d
6. Champion J 8C or Equivalent Tire Pressure MAINTENANCE AGREEMENT A Sears Maintenance Agreement is available on this product Contact your nearest Sears store for details WARNING This unit is equipped with an internal combus tion engine and should not be used on or near any unim proved forest covered brush covered or grass covered land unless the engine s exhaust system is equipped with spark arrester meeting applicable local or state laws if any a spark arrester is used it should be maintained in effec tive working order by the operator In the State of California the above is required by law Section 4442 of the California Public Resources Code Other states may have similar laws Federal laws apply on federal lands A spark arrester for the muffler is available through your nearest Sears Authorized Service Center See the REPAIR PARTS section of this manual WARRANTY FULL ONE YEAR WARRANTY ON CRAFTSMAN GAS CHIPPER VACUUM For one year from the date of purchase when this Craftsman chipper vacuum is maintained lubricated and tuned up according to the operating and maintenance instructions in the operators manual Sears will repair free of charge any defect in material or workmanship This warranty excludes the chipper blades flails air cleaners spark plugs catcher bags and tires which are expendable parts and become worn during normal use this chipper shredder is used for commercial or
7. MANUAL MODEL NO 247 799640 315 OFF Caution Read and Follow All Safety Rules and Instructions Before Operating This Equipment inted in U S A SEAIRS OWNER S CRAFTSMAN 9 HORSEPOWER MULCHING AND BAGGING CHIPPER VACUUM Assembly Operation Customer Responsibilities Service and Adjustment Repair Parts SEARS ROEBUCK AND CO Hoffman Estates IL 60179 U S A 770 8894K 2 95 IMPORTANT SAFE OPERATION PRACTICES THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH IF NOT FOLLOWED COULD ENDANGER THE PERSONAL SAFETY AND OR PROPERTY OF YOURSELF AND OTHERS READ AND FOLLOW ALL INSTRUCTIONS IN THIS MANUAL BEFORE ATTEMPTING TO OPERATE YOUR POWER CHIPPER VACUUM FAILURE TO COMPLY WITH THESE INSTRUCTIONS MAY RESULT IN PERSONAL INJURY WHEN YOU SEE THIS SYMBOL A HEED ITS WARNING Your chippe A DANGER 1 GENERAL OPERATION Read this owner s guide carefully in its entirety before attempt ing to assemble this machine Read understand and follow all instructions on the machine and in the manual s before opera tion Be completely familiar with the controls and the proper use of the machine before operating it Keep this manual in a safe place for future and regular reference and for ordering replace ment parts Your chipper vacuum is a powerful tool not a plaything Therefore exercise extreme caution at all times Your unit has been designed to p
8. To adjust the clutch cable refer to the Clutch Cable Adjustment section of Assembly Instructions SHIFT ROD ADJUSTMENT lf the shift rod needs adjustment to obtain forward or reverse correctly proceed as follows See figure 24 Remove the bag from the unit Remove the hairpin clip and flat washer from the upper end of the shift rod Pull the ferrule out of the hole in the shift lever Make certain wave washer remains in place on the ferrule Place the shift lever in 6th position all the way to the left Push down on the shift rod Thread the ferrule up or down the shift rod until the ferrule lines up with the upper hole in the shift lever Secure ferrule to shift lever with flat washer and hairpin clip 9 if you cannot obtain proper adjustment remove the gasoline and oil from the engine Tip the unit back ward so it rests on the handle Remove the bottom frame cover Check to see that all of the rubber on the friction wheel on the aluminum plate when the shift lever is in the 6th position Adjust the ferrule on the shift rod as needed Reassemble g Shift Lever lt 6th Position Hairpin Clip Fiat Washer FIGURE 24 BELT REMOVAL AND REPLACEMENT A Remove the plastic belt cover on the front of the engine by removing two self tapping screws Refer to figure 19 WARNING Disconnect the spark wire and move away from the spark plug
9. Capacity is approximately 26 ounces Be carefui not to overfill Oil bottle provided contains 27 oz of oil Tilt chipper vacuum toward the left from behind the hopper then re level Check oil level Refill to FULL mark on dipstick if necessary Replace dipstick and tighten FIGURE 13 GAS Remove fuel cap and fuel tank with approxi mately 1 gallon of clean fresh lead free grade automotive gasoline DO NOT use Ethyl or high octane gasoline Be certain container is clean and free from rust or foreign particles Never use gaso line that may be stale from long periods of storage in the container Replace fuel cap WARNING DO NOT FILL CLOSER THAN 1 2 INCH OF TOP OF FUEL TANK TO PREVENT SPILLS AND TO ALLOW FOR FUEL EXPANSION iF GASOLINE iS ACCIDENTLY SPILLED MOVE CHIPPER VACUUM AWAY FROM AREA OF SPILL AVOID CREATING ANY SOURCE OF IGNITION UNTIL GASOLINE VAPORS HAVE DISAPPEARED Check the fuel level periodically to avoid running out of gasoline while operating the chipper vacuum If the unit runs out of gas as it is chipping it may be neces sary to unclog the unit before it can be restarted Refer to Removing the Flail Screen in SERVICE AND ADJUSTMENT section WARNING EXPERIENCE INDICATES THAT ALCO HOL BLENDED FUELS CALLED GASOHOL OR USING ETHANOL OR METHANOL CAN ATTRACT MOISTURE WHICH LEADS TO SEPARATION AND FORMATION OF ACIDS DURING STORAGE ACIDIC GAS CAN DAMAGE THE FUEL SYSTEM OF AN ENGINE WHILE IN ST
10. 1 2 Control Knob Screw Torx T 30 5 16 18 x 1 1 8 intake Pipe Gasket Screw 10 32 x 1 2 Air Cleaner Gasket Air Cleaner Body Air Cleaner Bracket Air Cleaner Filter Air Cleaner Filter Air Cleaner Cover Wing Nut 1 4 20 Blower Housin Screw 5 16 18 x 3 4 Screw Torx T 40 5 16 24 x 21 32 Screw 1 4 20 x 5 8 Cylinder Head Cover Muffler Locking Piate Screw 5 16 18 x 3 3 16 Starter Bubble Cover Screw 8 32 x 3 8 Starter Cup SEARS CRAFTSMAN 9 H P ENGINE MODEL NO 143 959003 Repair Parts KEY PART KEY PART NO DESCRIPTION DESCRIPTION Starter Screen 370 36261 Instruction Decal Nut amp Lock Washer 1 4 28 370A 35703 Throttle Decal Fuel Line 370B 35532 Logo Decal Fuel Line Clamp 370C 35274 Instruction Decal Starter Screen 380 632689 Carburetor incl 184 Oil Fill Tube 390 590671 Rewind Starter O Ring Note This engine could have been built Fill Tube Clip with 590704 starter Refer to the design of the Dipstick air intake louvers for part identification Wire Clip individual starter parts do not interchange Starter Plug Gasket Set Screw Torx T 30 1 4 20 x 1 2 Incl Part Nos 27272 27896 27915A 29673 33263 33629 34698A 35262 amp 36448 RPM Setting High Speed 3450 to 3750 9 OPTIONAL SPARK ARRESTER Part No 34479A Low Speed 1700 DESCRIPTION 632689 Carburetor Incl 184 of Engine Parts List 632243 Throttle Shaft amp Leve
11. 139 140 149 149A 150 151 169 170 171 172 173 174 178 182 184 185 186 200 203 204 206 207 209 215 223 224 238 239 240 242 245 245A 250 251 260 261 262 264A 265 275 276 277 281 282 285 650872 650814 35187 36448 36449 27878 27880 34035 34036 650691 650690 650738 650694 33636 33369 650836 27882 35862 27881 32581 27896 28423 28424 28425 35350 650128 29752 30088 33263 34707 34661 34677 31342 650549 610973 33878 650821 32410 650378 27915 28820 27272 33266 33267 33268 35881 33269 650513 333750 650788 29747 650802 33272B 34185B 31588 650729 33013 650760 35985B Solid State Mounting Stud Screw Torx T 15 10 24 x 1 Ground Wire Cylinder Head Gasket Cylinder Head Exhaust Valve Std Inci 151 Exhaust Valve 1 32 OS Incl 151 Intake Valve Std incl 151 intake Valve 1 32 OS nd 151 Washer Belleville Washer Screw 1 4 20 x 5 8 Screw 5 16 18 x 2 Resistor Spark Plug RJ17LM Governor Gear Bracket Screw 10 24 x 1 2 Valve Spring Cap Valve Spring Cap Valve Spring Valve Spring Keeper Valve Cover Gasket Breather Body Breather Element Vaive Cover Breather Tube Screw 10 24 x 1 2 Nut amp Lock Washer 1 4 28 Screw 1 4 28 x 1 Carburetor To Intake Pipe Gasket Intake Pipe Governor Link Control Bracket Incl 203 amp 204 Compression Spring Screw 5 40 x 7 16 Terminal Throttle Link Screw 10 32 x
12. Center is a good way to make certain your chipper vacuum will provide maximum performance for the next season CHIPPER VACUUM 9 Clean the chipper vacuum thoroughly Wipe unit with an oiled rag to prevent rust use a light oil or silicone ENGINE IMPORTANT IT 15 IMPORTANT TO PREVENT GUM DEPOSITS FROM FORMING IN ESSENTIAL FUEL SYSTEM PARTS SUCH AS CARBURETOR FUEL FILTER FUEL HOSE OR TANK DURING STORAGE ALSO EXPERIENCE INDICATES THAT ALCOHOL BLENDED FUELS CALLED GASOHOL OR USING ETHANOL OR METHANOL CAN ATTRACT MOISTURE WHICH LEADS TO SEPARA TION AND FORMATION OF ACIDS DURING STORAGE ACIDIC GAS CAN DAMAGE THE FUEL SYSTEM OF AN ENGINE WHILE IN STORAGE WARNING ALWAYS STOP ENGINE AND DISCONNECT SPARK PLUG WIRE AND MOVE IT AWAY FROM SPARK PLUG BEFORE PERFORMING ANY ADJUST MENTS OR REPAIRS REMOVING THE SCREEN if the discharge area becomes clogged remove the flail screen and clean area as follows Stop the engine Make certain the chipper vacuum has come to a complete stop Disconnect the spark plug wire before unclogging the discharge chute 14 STORAGE gt Drain the fuel tank Start the engine and let it run until the fuel lines and carburetor are empty Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur Use fresh fuel next season NOTE Fuel stabilizer is an acceptable alternative in minimizing the formation of fuel gum depos
13. Remove old seals bearings and o rings from rod piston and cylinder rod cap Pay attention to alignment of seals as some are directional Be very careful not to scratch the walls of the seal grooves Scratches can render the rod cap or piston unusable Using a tap and die or thread file clean threads on rod and nut Cleanliness is vital throughout reassembly Clean piston rod end cap and cylinder Lubricate seals and bearings with hydraulic oil and install them in end cap and piston Lubricate inside of cylinder rod and piston with general purpose grease and carefully install them on rod from threaded end being careful to start wiper lip onto rod and then working cylinder rod on Any attempt to instal the cap from the rod turn down end will result in seal lip damage Clean grease from exposed threads rod and install piston nut on rod using red Loctite Torque nut to 300 325 ft lbs and restake in place to prevent the nut from backing off Remove rod assembly from wedge and set aside in a clean place being careful not to damage seals Lower cylinder to angle at which rod may be reinserted Lubricate inside of cylinder with hydraulic oil and grease the end cap and piston ae Ord Insert piston into cylinder being careful to not damage seals Stide assembly in until piston is approximately 12 into barrel then slide rod cap into cylinder and tap it in just past snap ring groove Do not go farther than necessar
14. operation of any chipper vacuum can result in foreign objects being thrown into the eyes which can result in severe eye damage Always wear the safety glasses provided with the chipper vacuum or eye shields before chipping or while performing any adjustments or repairs We recommend Wide Vision Safety Mask for over spectacles or standard glasses available at Sears Retail or Catalog Stores The best height for the nozzle will vary according to the conditions Adjust the height of the nozzle to find the setting which gives the best performance for the operating conditions In general raise the nozzle to vacuum a thick layer of leaves lower the nozzle for smooth surfaces Height 72 Adjustment Knob 221 D H FIGURE 10 USING THE CHIPPER Do not attempt to chip any material other than vegeta tion found in a normal yard Oe branches leaves twigs etc Material such as stalks or heavy branches up to 3 in diameter may be fed into the chipper chute See figure 11 WARNING MATERIAL UP TO A MAXI MUM OF 3 IN DIAMETER MAY BE FED INTO THE CHIPPER CHUTE DO NOT ATTEMPT TO CHIP ANY MATERIAL LARGER THAN 3 IN DIAMETER PERSONAL INJURY OR DAMAGE TO THE MACHINE COULD RESULT necessary use the tamper plug provided to push material into the chipper chute See figure 8 NEVER PLACE HANDS INSIDE CHIPPER CHUTE Place tamper plug inside chipper chute when not in use to deaden the sound FIGURE 1
15. rental purposes this warranty applies for only 30 days from the date of purchase WARRANTY SERVICE IS AVAILABLE BY CONTACTING THE NEAREST SEARS SERVICE CENTER IN THE UNITED STATES THIS WARRANTY APPLIES ONLY WHILE THIS PRODUCT IS IN USE IN THE UNITED STATES This warranty gives you specific legal rights and you may also have other rights which vary from state to state SEARS ROEBUCK AND CO DEPT 817WA HOFFMAN ESTATES IL 60179 TABLE OF CONTENTS SAFETY RULES eske 2 3 OPERATION Ann ten 8 11 PRODUCT SPECIFICATIONS 4 CUSTOMER RESPONSIBILITIES 12 13 MAINTENANCE AGREEMENT 4 STORAGE orate aston ees 14 CUSTOMER RESPONSIBILITIES 4 12 13 SERVICE AND ADJUSTMENT 14 17 WARRANTY 4 TROUBLE le LCE 18 Asha 5 PARTS OPRDERINGISGEPWVICE 18 ACCESSORIES iranienne 5 REPAIR PARTS CHIPPER VACUUM 19 25 5 Ses RS S 6 8 REPAIR PARTS ENGINE 26 29 INDEX A M 0885 5 ANG 5 Maintenance Adjustments Agreement 4 TE 17 EE 12 Clutch Cable 7 le 12 13 Engine Speed sieurs 17 Chipper Vacuum 12 ST ROT E 16 Assembly Instructions 6 8 Qil eegene 10 Operating
16. sch sch sch sch AMY 5 M sch D sch sch M z et SEARS CRAFTSMAN 9 CHIPPER VACUUM MODEL NO 247 799640 Repair Parts DESCRIPTION 618 0168 DIFFERENTIAL ASSY COMPLETE 1 2 1710 1206 SCREW HEX 4 3 1711 1035 SHAFT CROSS 1 4 1711 1037 AXLE SHAFT 10 95 LONG 1 5 1711 1038 AXLE SHAFT 9 82 LONG 1 6 713 0445 SPROCKET 22 T 1 7 716 0232 RING RETAINING 2 PER AXLE 4 8 1717 1358 GEAR DIFFERENTIAL 14 2 9 1717 1437 GEAR DIFFERENTIAL 10 2 10 1719 0333 HOUSING DIFFERENTIAL RH 1 11 719 0334 HOUSING DIFFERENTIAL LH 1 12 1748 0383 BEARING FLANGE 2 13 737 0300 GREASE 10 14 SEALANT LOCTITE 5699 710 3008 712 3004 726 0205 751 0535 8 751 0603 751 0615 726 0209 SCREW HEX NUT HEX LOCK FLANGE CLAMP HOSE HOSE FUEL LINE 8 CAP FUEL TANK FUEL 1 GALLON CABLE TIE NOT SHOWN 0 25 SEARS CRAFTSMAN 9 ENGINE MODEL 143 959003 Repair Parts 26 SEARS CRAFTSMAN 9 H P ENGINE MODEL 143 959003 Repair Parts KEY PART KEY PART NO DESCRIPTION 1 2 4 5 15 15 158 16 100 35135 Solid State Ignition 101 610118 Spark Plug Cover 35385 27652 32678 30969 30699C 30700 650494 33454 29916 650548 34663 35319 36460 650561 30322 36283 29826 29918 29216 29642 34552 34553 34554 34329A 34330A 34331A 34332 34333 34334 27888 35373A 650908 650882
17. trained technicians professional technicians specifically trained on Sears products having the parts tools and the equipment to insure The model number for your chipper vacuum will be found on a label attached to the frame The model number for the engine will be found on the that we meet our pledge to you we service what we blower housing of the engine sell All parts listed herein may be ordered through Sears Roebuck and Co Service Genters and Retail IF YOU NEED REPAIR Stores SERVICE OR PARTS WHEN ORDERING REPAIR PARTS ALWAYS GIVE THE FOLLOWING INFORMATION REPAIR SERVICE 1 800 4 REPAIR PRODUCT 9 Chipper V 3 PRODUCT 9 ipper Vacuum 1 800 473 7247 MODEL NUMBER 247 799640 ENGINE MODEL NO 143 959003 ORDERING PARTS 1 800 366 7278 PART DESCRIPTION SEARS CRAFTSMAN 9 H P CHIPPER VACUUM MODEL 247 799640 Repair Parts A 720 0232 KNOB SHIFT 1539 019 PUSHNUT 647 0019 CONTROL ASSY 1 725 0157 CABLE TIE 735 0126 WASHER RUBBER 736 0264 WASHER FLAT 736 0300 WASHER FLAT 736 0413 WASHER SPRING 736 0451 WASHER SADDLE 738 0560 SCREW SHOULDER 738 0561 NUT SHOULDER 741 0402 BEARING FLANGE PLASTIC 746 0921 CABLE CLUTCH 747 0626 ROD SHIFT 781 0626 COVER SHIFT 784 0297 HANDLE SHIFT HANDLE ASSY UPPER HANDLE ASSY LOWER BRACKET ASSY SHIFT SCREW HEX SCREW HEX SCREW HEX SCREW HEX SCREW HEX FERRULE PIN STUD NUT HEX LOCK NUT HEX LOCK PIN COTTER
18. 1 IMPORTANT There is a flail screen located inside the housing in the discharge area If the flail screen becomes clogged remove and clean as instructed in the Service and Adjustment section on page 14 For best performance it is important to keep the chipper blades sharp the composition of the material being discharged changes becomes stringy etc or if the rate at which the material is discharged slows down considerably it is likely that the chipper blades are dull and need to be sharpened or replaced Refer to Service and Adjustments sections TO EMPTY BAG Open the large zipper on the bag to empty the bag See figure 12 Be certain the zipper is closed when operating the unit Closed FIGURE 72 10 GAS AND OIL FILL UP OIL Only use high quality detergent oil rated with API service classification SF SG or SH Select the oil s viscosity grade according to your expected operating temperature Colder lt 32 F gt Warmer 5 30 30 NOTE Although multi viscosity oils 5 30 10W30 etc improve starting in cold weather these multi viscosity oils will result in increased oil consumption when used above 32 F Check your oil level more frequently to avoid possible engine damage from running low on oil Use engine oil provided Remove oil fill dipstick See figure 13 With chipper vacuum level use a funnel to fill engine with oil to FULL mark on dipstick
19. 12 0241 712 0711 712 3004 ee 634 0100 634 0101 734 1598 711 1017 712 3005 714 0104 731 0981A 734 1793 736 0105 4 BEARING ASSY FRICTION WHEEL DIFFERENTIAL ASSY COMP DISC FRICTION WHEEL ASSY COMP DISC FRICTION WHEEL BOLT SHOULDER BEARING BALL BRACKET ASSY SUPPORT ASSY AXLE SHAFT ASSY SHIFT ARM ASSY SHIFT FRAME ASSY WHEEL ASSY FRICTION SCREW HEX SELF TAP SCREW HEX WASHER SCREW HEX WASHER SCREW HEX SCREW HEX SHAFT HEX SHAFT JACK NUT HEX NUT HEX JAM NUT HEX FLANGE LOCK DESCRIPTION D D sch sch sch sch Ware ASSY COMPLETE 4 x 0 RIM ASSY COMPLETE TIRE PNEUMATIC 4 10 PIN CLEVIS NUT HEX FLANGE PIN COTTER HUB CAP WHEEL 2 X 8 WASHER BELL WASHER WAVE SCREW SHOULDER VALVE STEM NNNNNNNNBNNNNND 24 PART NO 713 0330 713 0374 713 0415 714 0474 716 0102 716 0185 732 0264 736 0105 736 0119 736 0160 736 0267 736 0287 736 3089 738 0908 741 0563 748 0382 750 0351 750 0978 750 0979 750 0980 750 0981 781 0612 784 5590 DESCRIPTION SPROCKET amp HUB CHAIN SPROCKET 11T PIN COTTER RING SNAP RING SNAP SPRING EXTENSION WASHER BELL WASHER LOCK WASHER FLAT WASHER FLAT WASHER FLAT WASHER FLAT BOLT IDLER BEARING BALL SPACER SLEEVE SPACER SPACER SPACER SPACER COVER FRAME BRACKET SHIFT QTY sch sch sch
20. 31 0029 NOZZLE ASS Y VACUUM 731 1616 CHUTE DISCHARGE 764 0473 BAG VACUUM CHUTE ASSEMBLY SCREW HEX NUT LOCK CHUTE CHIPPER UPPER BRACKET SUPPORT TAMPER PLUG Shown 21 SEARS CRAFTSMAN 9 CHIPPER VACUUM MODEL 247 799640 Repair Parts 710 0520 710 0924 710 3008 711 1041 712 3004 712 3005 781 0605 SCREW HEX SCREW MACHINE PAN HD SCREW HEX FERRULE ADJUSTABLE NUT HEX FLANGE NUT HEX FLANGE LOCK PIN COTTER RING E KNOB PLASTIC WASHER BELL WASHER FLAT WASHER FLAT SCREW SHOULDER ROD ADJUSTABLE SPACER BRACKET HEIGHT ADJ BRKT ASSY WHEEL PIVOT sch sch AD sch sch sch zk M sch sch sch O1 SCREW HEX SCREW HEX SCREW HEX NUT HEX SHOULDER NUT HEX LOCK NUT HEX LOCK FLANGE ADAPTER MOUNTING COVER BELT SPRING TORSION WASHER LOCK BOLT IDLER V BELT IDLER FLAT PULLEY BRACKET IDLER PIVOT BRACKET IDLER 1 1 5 1 1 1 1 1 1 1 1 1 1 1 1 1 SEARS CRAFTSMAN 9 CHIPPER VACUUM MODEL 247 799640 Repair Parts SEARS CRAFTSMAN 9 CHIPPER VACUUM MODEL 247 799640 Repair Parts PART Ka 618 0063 618 0168 656 0009 1756 0564 738 0865 741 0600 681 0055 681 0058 681 0069 681 0072 681 0073 684 0042 710 0502 710 0653 710 0788 710 0896 710 3008 711 1026 711 1028 7
21. 34034 35374 36569 33273A 650128 35262A 35445A 35377 27642 35319 31845 30590A 35378 30588A 29193 650833 650832 32589 611090 650880 650881 Cylinder incl 2 amp 20 Dowel Pin Oil Drain Extension Extension Cap Governor Rod Incl 15A amp 15B Governor Yoke Screw 6 40 x 5 16 Governor Lever Governor Lever Clamp Screw 8 32 x 5 16 Speed Control Spring Oil Seal Blower Housing Baffle Screw 1 4 20 x 5 8 Lock Nut 8 32 Crankshaft Screw 10 32 x 3 4 Lock Washer Lock Nut 10 32 Retaining Ring Piston Pin amp Ring Set Std Piston Pin amp Ring Set 010 OS Piston Pin amp Ring Set 020 OS Piston amp Pin Ass y Std Incl 43 Piston amp Pin Ass y 010 OS Incl 43 Piston amp Pin Ass y 020 OS incl 43 Ring Set Std Ring Set 010 OS Ring Set 020 OS Piston Pin Retaining Ring Connecting Rod Ass y Incl 46 47 amp 49 Connecting Rod Bolt Connecting Rod Bolt Valve Lifter Oil Dipper Camshaft MCR Blower Housing Extension Screw 10 24 x 1 2 Cylinder Cover Gasket Cylinder Cover incl 71 75 amp 80 Crankshaft Bushing Oil Drain Plug Oil Seal Governor Shaft Washer Governor Gear Ass y Incl 81 Governor Spool Retaining Ring Screw 1 4 20 x 1 3 16 Screw 1 4 20 x 1 11 16 Flywheel Key Flywheel Lock Washer Flywheel Nut 27 102 103 110 119 120 125 125 126 126 127 128 129 130 135
22. AR YOUR FORESIGHT 1 BETTER THAN NO SIGHT TO STOP ENGINE Move throttle control lever to STOP position See figure 9 Disconnect spark plug wire and move away from spark plug to prevent accidental starting while equipment is unattended HOW TO USE YOUR CHIPPER VACUUM WARNING YOUR CHIPPER VACUUM IS EQUIPPED WITH A SAFETY SWITCH ON THE FRONT OF THE HOUSING NOZZLE OR HOSE ATTACHMENT MUST BE IN PLACE ON THE CHIPPER VACUUM BEFORE THE ENGINE CAN BE STARTED TO ENGAGE DRIVE IMPORTANT Always release the drive clutch handle before moving the shift lever With the engine running near top speed move shift lever into one of the six FORWARD positions or two REVERSE positions Select a speed appropri ate for the conditions that exist Use the slower speeds until you are familiar with the operation of the chipper vacuum To engage the wheel drive hold the drive clutch handle against the chipper vacuum handle Releasing the drive clutch handie stops the wheels from driving Release the drive clutch handle to slow down when negotiating an obstacle making a turn or stopping Engage slowly to prevent front wheels from lifting up NOZZLE HEIGHT ADJUSTMENT The height adjustment knob is located on the right hand side of the chipper vacuum See figure 10 Turn the knob clockwise to raise the nozzle Turn the knob counterclockwise to lower Be careful not to turn knob too far rod could come out of ferrule The
23. GINE IS RUNNING E G CARBURE TOR KEEP CLEAR OF ALL MOVING PARTS BE CAREFUL OF HEATED SUR FACES AND MUFFLER The carburetor has been pre set at the factory and should not require adjustment However if your engine does not operate properly due to suspected carburetor problems take your chipper vacuum to your nearest SEARS Service Center ENGINE SPEED Your engine speed has been factory set Do not attempt to increase engine speed or it may result in personal injury If you believe the engine is running too fast or too slow take your chipper vacuum to the nearest SEARS Service Center for repair and adjust ment TROUBLE SHOOTING Engine fails to start Fuel tank empty or stale fuel Fill tank with clean fresh fuel Spark plug wire disconnected Connect wire to spark plug Faulty spark plug Clean adjust gap or replace Nozzle safety switch not depressed Adjust metal tab so it depresses the safety switch Spark piug wire loose Connect and tighten spark plug wire Unit running on CHOKE Move choke lever to OFF position Blocked fuel line or stale fuel Clean fuel line fill tank with clean fresh gasoline Disconnect fuel line at carburetor to drain fuel tank Refill with fresh fuel Adjust carburetor or contact your SEARS Service Center Service air cleaner See Customer Responsibilities section of this manual Engine overheats Carburetor not adjusted Con
24. ORAGE TO AVOID ENGINE PROBLEMS THE FUEL SYSTEM SHOULD BE EMPTIED OR TREATED WITH FUEL STABILIZER BEFORE STORAGE FOR 30 DAYS OR LONGER USE FRESH FUEL NEXT SEASON SEE STORAGE SECTION FOR ADDITIONAL INFORMATION NEVER USE ENGINE OR CARBURETOR CLEAN ER PRODUCTS IN THE FUEL TANK OR PERMA NENT DAMAGE MAY OCCUR TO START ENGINE IMPORTANT IF UNIT SHOWS ANY SIGN OF MOTION WITH THE CLUTCH HANDLE DISEN GAGED SHUT ENGINE OFF IMMEDIATELY READJUST AS INSTRUCTED IN THE FINAL ADJUSTMENTS SECTION OF THE ASSEMBLY INSTRUCTIONS WARNING BE SURE NO ONE OTHER THAN THE OPERATOR IS STANDING NEAR THE CHIPPER VACUUM WHILE STARTING OR OPERATING DO NOT OPERATE THIS CHIPPER VACUUM UNLESS THE NOZZLE DISCHARGE CHUTE AND BAG HAVE BEEN PROPER LY INSTALLED Attach spark plug wire and rubber boot to spark plug if necessary See figure 9 Place the throttle control lever in FAST position Move choke lever to CHOKE position See figure 14 9 one foot on left rear wheel to prevent the unit from skidding while starting Grasp starter handie and pull rope out slowly until engine reaches start of compression cycle rope will pull slightly harder at this point Let the rope rewind siowly 11 NOTE A noise will be heard when finding the start of the compression cycle This noise is caused by the flails and fingers which are part of the shredding mech anism falling into place and should be expected in add
25. Refer to GAS AND OIL FILL UP section Replace dipstick CLEANER The air cleaner prevents damaging dirt dust etc from entering the carburetor and being forced into the engine and is important to engine life and per formance Never run your engine without air cleaner com pletely assembled To Service Air Cieaner Service pre cleaner after every 25 hours of use or at least once a season Replace filter every 100 hours of use or at least once a season Service pre cieaner and filter more often under dusty conditions Remove wing nut and cover See figure 15 Slide pre cleaner off filter Clean the inside of base and cover thoroughly Clean pre cleaner as follows Wash in water and detergent solution and squeeze do not twist until all dirt is removed Rinse thoroughly in clear water Wrap in a clean cloth and squeeze do not twist until completely dry or allow to air dry if necessary replace filter do not attempt to clean Install new filter on base Slide pre cleaner over filter Install cover and wing nut Tighten wing nut securely Base Filter Pre Cleaner Cover FIGURE 15 CLEAN ENGINE Clean engine periodically Remove dirt and debris with a cloth or brush Cleaning with a forceful spray of water is not recommended as water could coniami nate the fuel system Yearly or every 25 hours whichever occurs first remove the air intake screen and blower housing an
26. d clean the areas shown in figure 16 to avoid over Speeding overheating and engine damage Clean more often if necessary FLER AREA TO REMOVE ALL GRASS WARNING PERIODICALLY CLEAN MUF A DIRT AND COMBUSTIBLE DEBRIS gt t FIGURE 16 SPARK PLUG The spark plug should be cleaned and the gap reset to 030 at least once a season or every 50 hours of operation See figure 17 Spark plug replacement is recommended at the start of each season Refer to engine parts list for correct spark plug type NOTE Do not sandblast spark plug Spark plug Should be cleaned by scraping or wire brushing and washing with a commercial soivent FIGURE 17 MUFFLER Do not operate the chipper vacuum without a muffler or tamper with the exhaust system Damaged mufflers or spark arresters could create a fire hazard Inspect periodically and replace if necessary If your engine is equipped with a spark arrester screen assembly remove every 50 hours for cleaning and inspection Replace if damaged Prepare your chipper vacuum for storage at the end of the season or if the unit will not be used for 30 days or more WARNING NEVER STORE MACHINE WITH FUEL IN THE FUEL TANK INSIDE OF BUILDING WHERE FUMES MAY REACH AN OPEN FLAME OR SPARK OR WHERE IGNITION SOURCES ARE PRESENT SUCH AS HOT WATER AND SPACE HEATERS FURNACES CLOTHES DRYERS STOVES ELECTRIC MOTORS ETC NOTE A yearly check up by your local Sears Service
27. e at all times A Never place your hands or any part of your body or clothing near or under rotating parts Keep clear of the discharge opening at all times Never insert your hands or any part of your body or clothing into the nozzle chipper chute or discharge opening as the rotating impeller can cause serious injury fit is necessary for any reason to unclog the feed intake or dis charge openings or to inspect or repair any part of the machine where a moving part can come in contact with your body or clothing stop the machine allow it to cool disconnect the spark plug wire from the spark plug and move it away from ihe spark plug before attempting to unclog inspect or repair Never operate unit without vacuum bag and discharge chute properly affixed to unit Large zippered end of bag must be closed to prevent objects from being blown out r vacuum was built to be operated according to the rules for safe operation in this manual As with any type of power equipment carelessness or error on the part of the operator can result in serious injury This unit is capable of amputating fingers and hands and throwing objects Failure to observe the following safety instructions could result in Never operate unit without either the inlet nozzle or optional hose attachment properly affixed to unit These devices shield the operator from accidental contact with the rotating impeller Never attempt to convert the unit from nozzle t
28. e in an enclosed area as the exhaust from the engine contains carbon monoxide which is a 00011658 tasteless and deadly poisonous gas To reduce fire hazard keep engine and muffler free of leaves grass and other debris build up Clean up fuel and oil spillage Allow unit to cool at least 5 minutes before storing Before cleaning repairing or inspecting make certain the impeller and all moving parts have stopped Disconnect the spark plug wire and keep wire away from spark plug to prevent accidental starting Do not use flammable solutions to clean air filter OWNER S MANUAL SAFETY LABEL Keep all nuts bolts and screws tight to be sure the equipment is in safe working condition Never tamper with safety devices Check their proper operation regularly After striking a foreign object immediately stop the engine dis connect the spark plug wire from the spark plug and thoroughly inspect the unit for any damage Repair damage before starting and operating unit Do not alter or tamper with the engine s governor setting The governor controls the maximum safe operating speed of the engine Over speeding the engine is dangerous and will cause damage to the engine and to other moving parts of the machine Check the vacuum bag frequently for wear Replace if worn or damaged Keep vacuum bag free of debris when not in use A WARNING YOUR RESPONSIBILITY Restrict the use of t
29. erform two jobs to chip and vacuum vegeta tion found in a normal yard Do not use it for any other purpose Never allow children under 16 to operate the unit Children 16 years and older should only operate under close parental super vision Only responsible individuals who are familiar with these rules of safe operation should be allowed to use your unit Keep the area of operation clear of all persons particularly small children and pets Stop the engine when they are in the vicinity of the unit When feeding material into this equipment be extremely careful that pieces of metal rocks bottles cans or other foreign objects are not included Personal injury or damage to the machine could result Aiways wear safety glasses or safety goggles during operation and while performing an adjustment or repair to protect eyes from foreign objects that may be thrown from the machine Wear sturdy rough soled work shoes and close fitting slacks and shirt Shirt and slacks that cover the arms and legs and steel toed shoes are recommended Do not wear loose fitting clothes or jewelry and secure hair so it above shoulder length They can be caught in moving parts Never operate a unit in bare feet sandals or sneakers Wear gloves when feeding mate rial in the chipper chute Do not operate the unit while under the influence of alcohol or drugs serious injury or death Do not over reach Keep proper footing and balanc
30. f the shoulder bolt through the flat side of the wheel Assemble wheel to outside of wheel bracket Secure with cupped washer cupped side of washer goes against the bracket and hex lock nut Tighten Align the four tabs on the hub caps with the four holes in the wheel Press in each tab until it locks in place The hub cap edges must be flush with the wheel rim when installed properly ATTACHING THE NOZZLE See figure 3 Remove the three plastic wing nuts from the front of the chipper vacuum Place the nozzle in position over the three weld studs Secure with the wing nuts just removed NOTE The metal tab in the nozzle must depress the safety switch on the front of the chipper vacuum or the engine will not start Set unit in upright position Hex Bolts Flat Upper Handle Washers and Nuts ATTACHING THE CHIPPER CHUTE AND Chipper a 5 16 Hex Nuts SUPPORT BRACKET See figure 4 Remove the two hex lock nuts from the hex bolts which secure the right side of the upper handle to the lower Leave bolts and washers in place 9 Remove three cupped washers and 5 16 hex nuts from the weld studs beside the opening on the right side of the chipper vacuum Place the chipper chute in position over the weld studs slot goes at the bottom Secure with cupped washers and hex nuts just removed NOTE Only tighten the three nuts one or two threads for ease of further assembly N NOTE Cupped side of t
31. he washer goes against the 2 9 chipper chute See figure 2 to identify cupped side of Lower Handle Nuts washer FIGURE 4 9 Remove the iwo hex bolts flat washers and nuts which are attached to the support bracket Attach the support bracket to the bottom of the Drive chipper chute loosely using the hardware removed Clutch previously HEADS OF THE HEX BOLTS AND Handle WASHERS GO TO THE INSIDE OF THE 4 CHIPPER CHUTE 7 Place the support bracket over the two bolts the Pushing UP on the chipper chute will aid 2 the alignment of the holes in the support bracket with the bolts in the handle Tighten all hardware securely on the chipper chute support bracket and handle ATTACHING THE CLUTCH CABLE The clutch cable has been assembled at the factory Loosen the hex nuts at the cable bracket Hook the 2 end of the cable into the drive clutch handle from the outside to the inside as shown in figure 5A Pliers will aid in assembly CLUTCH CABLE ADJUSTMENT Adjust the hex nuts at the cable bracket so there is Handle slack in the cable but the cable is NOT tight Do not overtighten the cable See figure 5B To check the clutch adjustment proceed as follows Discharge 2 lt Push the chipper vacuum backward and forward Ch with the drive clutch handle released It should move freely Se Drawstring Hole in D
32. hipper chute whenever the chipper chute is not in use OPERATION READ THIS OWNER S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR CHIPPER VACUUM Compare the illustrations with your chipper vacuum to familiarize yourself with the location of various controls and adjustments Save this manual for future reference Chipper Chute FIGURE 9 Spark Plug Oil Fill Wire and Boot Dipstick 0 Starter Handle Fast MEETS ANSI SAFETY STANDARDS Sears chipper vacuums conform to the safety standards of the American National Standards Institute OPERATING CONTROLS See figure 9 SHIFT LEVER The shift lever determines ground speed It may be placed in of eight positions Forward one of six speeds Position number one 1 is the slowest Position number six 6 is the fastest Reverse two reverse speeds all the way to the right is the faster of the two DRIVE CLUTCH HANDLE BAIL Squeezing the drive clutch handle against the upper handie engages the wheel drive Release the drive clutch handle to stop the forward drive CHOKE LEVER Used to enrich the fuel mixture in the carburetor when starting cold engine STARTER HANDLE Used to manually start the engine THROTTLE CONTROL Controls engine speed and stops the engine BEFORE USING YOUR CHIPPER VACUUM AGAIN REFER TO THE SAFETY RULES AS SHOWN ON PAGE 2 OF THIS MANUAL ALWAYS BE CAREFUL WE
33. his power machine to persons who read understand and follow the warnings and instructions in this manual and an the machine CONGRATULATIONS on your purchase of Sears Craftsman Chipper Vacuum It has been designed engineered and manufactured to give you the best possible dependability and performance Should you experience any problem you cannot easily rem edy please contact your nearest Sears Service Center Department in the United States We have competent well trained technicians and the proper tools to service or repair this unit Please read and retain this manual The instructions will enable you to assemble and maintain your chipper vacuum properly Always observe the SAFETY RULES MODEL NUMBER 247 799640 SERIAL NUMBER DATE OF PURCHASE THE MODEL AND SERIAL NUMBERS WILL BE FOUND ON A LABEL ATTACHED TO THE FRAME OF THE CHIPPER VACUUM YOU SHOULD RECORD BOTH SERIAL NUMBER AND DATE OF PURCHASE AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE CUSTOMER RESPONSIBILITIES Read and observe the safety rules Follow a regular schedule in maintaining caring for and using your chipper vacuum Follow the instructions under Customer Respon sibilities and Storage sections of this Owner s Manual PRODUCT SPECIFICATIONS Horsepower SAE 30 26 Ounces Engine Oil Capacity API Classification SF SG or SH Fuel Capacity Approximately 1 Gallon Unleaded Spark Plug Gap 030 in
34. ition the flails and fingers will be noisy after the engine is started until the impeller reaches full speed Pull rope with a rapid continuous full arm stroke Keep a firm grip on start handle Let rope rewind slowly Do not let starter handle snap back against starter Repeat preceding two instructions until engine fires When engine starts move choke lever on engine halfway between CHOKE and OFF NOTE if engine does not fire after three attempts move choke lever halfway between CHOKE and OFF position and try again Move throttle control to IDLE position for a few min utes warm up Move choke lever to OFF position as engine warms up NOTE In order to idle smoothly a new engine may require 3 to 5 minutes running above slow idle speed Idle speed has been adjusted to be correct after this break in period Full Choke Position Off Position FIGURE 14 TO STOP ENGINE 9 Move throttle control lever to STOP position Disconnect spark plug wire and move away from spark plug to prevent accidental starting while equipment is unattended CUSTOMER RESPONSIBILITIES MAINTENANCE SCHEDULE FILL IN DATES AS YOU COMPLETE REGULAR SERVICE 1 o Pivot Points tue GENERAL RECOMMENDATIONS WARNING ALWAYS STOP THE ENGINE AND DISCONNECT THE SPARK PLUG WIRE BEFORE PERFORMING ANY MAINTENANCE OR ADJUSTMENTS Periodically check all fasteners and be sure they are tight Follow the Main
35. its during storage Add stabilizer to gasoline in fuel tank or stor age container Always follow the mix ratio found on stabilizer container Run engine at least 10 minutes after adding stabilizer to allow the stabilizer to reach the carburetor Do not drain the gas tank and carbure tor if using fuel stabilizer Drain all the oil from crankcase this should be done after the engine has been operated and is still warm and refill the crankcase with fresh oil If you have drained the fuel tank protect the inside of the engine as follows Remove spark plug pour approximately 1 2 ounce approximately one table spoon of engine oil into cylinder and crank slowly to distribute oil Replace spark plug OTHER Do not store gasoline from one season to another 9 Replace your gasoline can if your can starts to rust Rust and or dirt in your gasoline will cause problems Store unit in a clean dry area Do not store next to corrosive materials such as fertilizer NOTE If storing in an unventilated or metal storage shed be certain to rustproof the equipment by coating with a light or silicone Remove the vacuum bag from the unit Remove the four self tapping screws from the bottom of the discharge chute and the hex flat washer and hex nut from the top Be careful not to drop the hardware into the chute Remove the dis charge chute assembly See figure 18 Discharge Chute Assembly
36. n blades are reassembled with the sharp edge facing upward as viewed from the access opening CHANGING THE FRICTION WHEEL RUBBER The rubber on the friction wheel is subject to wear and should be checked after 50 hours of operation and periodically thereafter Replace friction wheel rubber if any signs of wear or cracking are found Drain the gasoline and oil from the chipper vacuum Tip the unit backward so it rests on the handles amp Remove the frame cover by removing eight self tapping screws from underneath the chipper vacuum See figure 22 Frame Cover FIGURE 22 amp Remove the gear shaft from the unit by removing the hex bolts lock washers and flat washers from each side of the frame See figure 23 Hold the fric tion wheel assembly and slide the gear shaft out of the unit toward the right side Friction Wheel Hex Bolt Lock Washer Flat Washer FIGURE 23 Remove the six screws from the friction wheel assembly three from each side Remove the fric tion wheel rubber from between the friction wheel plate Reassemble new friction wheel rubber to the fric tion wheel assembly tightening the six screws in rotation and with equal force Slide the friction wheel assembly up onto the shift mechanism then slide the gear shaft back into the unit in reverse order Readjust the clutch cable Refer to adjustment sec tion CLUTCH CABLE ADJUSTMENT
37. ng Ass y 590456 Starter Rope 114 x 11 64 Dia 590387 Starter Handle 1 2 3 4 5 6 7 8 11 12 13 PARTS LIST FOR RECOIL STARTER OPTIONAL DESCRIPTION 590704 Recoil Starter 1 590599 Spring Pin Incl 4 2 590600 Washer 3 590696 Retainer 4 590601 Washer 5 590697 Brake Spring 6 590698 Starter Dog 7 590699 Dog Spring 8 590700 Pulley amp Rewind Spring Ass y 11 590705 Starter Housing Ass y 12 590535 Starter Rope 98 x 9 64 Dia 13 590701 Starter Handle Seal kits for the new cylinders are the same as for the old cylinders as all the internal components are the same diam old cylinder new cylinder seal kit 4 0 718 0307 718 0773 753 0490 4 5 718 0306 718 0769 753 0563 To DISTRIBUTORS amp AUTHORIZED SERVICE DEALERS Re LOG SPLITTER SEAL KITS of February 1 1999 log splitter cylinders under warranty capable of being repaired with a seal kit must be repaired Any cylinders replaced under warranty will be called back for inspection Any cylinder found to be repairable will be returned to the dealer and the dealer will be charged back the amount paid on the claim for the cylinder Labor already paid will not be charged back If replacement is determined to have been the only solution to the problem no action will be taken If you have any questions regarding this policy or how to handle situation please contact MTD service
38. o hose mode or vice versa with the engine running Never attempt to remove or empty vacuum bag when engine is running Shut the engine off and wait for the impeller to come to a complete stop before removing the bag The impelier contin ues to rotate for a few seconds afier the engine is shut off Never place any part of the body in the impeller area until you are sure the impeller has stopped rotating Keep all guards and safety devices in place and operating erly Do not allow an accumulation of processed material fo build up in the discharge area as this will prevent proper discharge and can result in kick back from the chipper chute Keep your face and body back from chipper chute to avoid dental bounce back of any material If the cutting mechanism strikes a foreign object or if your machine should start making an unusual noise or vibration immediately stop the engine disconnect the spark plug wire and move the wire away from the spark plug Allow the machine to stop and take the following steps Inspect for damage Repair or replace any damaged paris Check for any loose parts and tighten to assure continued safe operation Muffler and engine become hot and can cause burn Do not touch Do not allow leaves or other debris to build up on engine s muf fler The debris could ignite and cause a fire Do not operate engine if air cleaner or cover over carburetor air intake is
39. owel or a hammer handle tap cylinder rod cap into cylinder just beyond the snap ring Do not go any farther than necessary as it will make further disassembly very difficult Remove snap ring from groove being careful not to scratch groove or bore If you do you must polish scratched area with fine emery so scratch won t damage new seals as they pass the area It is an easy job if you tap one end of snap ring into the cylinder first and then get a medium screwdriver under the ring to pry it out PEN 10 Reconnect and tighten hose to pump 11 Very Important You must clean any paint or rust in the bore area by sanding it off The paint will be from the snap ring groove outward After removing ALL paint and rust leaving a smooth surface coat exposed area inside cylinder with grease If you do not do this further disassembly will be difficult and damage may result during reassembly 12 13 14 15 16 17 18 19 20 21 22 23 24 31 32 USE EXTREME CAUTION DURING NEXT STEP Put control lever in neutral and start engine Set engine at low idle speed and use control valve lever to extend rod out of cylinder until cylinder rod cap just starts to move Put control lever in neutral shut off engine and disconnect spark plug wire Have someone hold control lever extend position and pull engine starter rope to extend rod slowly until the cylinder rod cap can be pulled f
40. r Assembly 632244 Throttle Return Spring 631184 Dust Seal Washer 631183 Dust Seal Throttle 632517 Throttle Shutter 650506 Shutter Screw 632249 Choke Shaft amp Lever Assembly 632043 Choke Return Spring 7 631184 Dust Seal Washer 18 631183 Dust Seal Choke 632248 Choke Shutter 630735 Choke Positioning Spring 632164 Fuel Fitting 650417 Throttle Crack Screw idle Speed Screw 630766 Tension Spring 632281 idle Mixture Screw 630766 Tension Spring 630739 Idle Mixture Screw Washer 630740 Idle Mixture Screw O Ring 631867 Float Bowl 631024 Float Shaft 632019 Float 631028 Float Bowl O Ring 631021 Inlet Needle Seat amp Clip Incl 31 631022 Spring Clip 632239 Main Adj Screw Ass y Incl 41 thru 44 630740 High Speed Mixture Screw O Ring 630739 High Speed Mixture Screw Washer 630738 High Speed Mixture Screw Tension Spring 27110 Bow Nut Washer 630748 Weich Plug idle Mixture Well 631027 Welch Plug Atmospheric Vent 632347 Repair incl Items Marked PK in Notes 28 SEARS CRAFTSMAN 9 ENGINE MODEL 143 959003 Repair Parts PARTS LIST FOR RECOIL STARTER DESCRIPTION 590671 Recoil Starter 590599 Spring Pin Incl 4 590600 Washer 590679 Retainer 590601 Washer 590678 Brake Spring 590680 Starter Dog 90412 Dog Spring 590681 Pulley amp Rewind Spring Ass y 590683 Starter Housi
41. ree of the cylinder Do not remove end from rod Remove steel tube from fitting at end of cylinder and attach I D hose to fitting on the cylinder using a hose clamp Place other end of hose into catch container Push rod into cylinder using cylinder rod cap as a guide This will force oil out of cylinder through hose and into container Do not push tum down of rod into cylinder rod cap as damage to cap may result Remove hose from cylinder You are now ready to pull rod and piston assembly from cylinder barrel Be sure to have a piece of wood thick cardboard or pile of rags on the beam so that when you pull the rod out of the cylinder the piston won t be damaged by dropping down on the beam Install suitable bar or large screwdriver through bolt hole in rod and pull rod cylinder rod cap and piston out of cylinder Set rod and piston assembly on clean bench and with a light examine inside of cylinder barrel for gouges and scratches If scratches exist you should replace the complete cylinder Do not attempt to hone cylinder as any reduction of wall thickness can result in a safety problem If no damage to cylinder is apparent proceed with repair Prop cylinder up as close to vertical as possible with a wood block Bolt rod to wedge ram placing a wood block under rod to keep piston from hitting beam Remove nut from piston end of rod and slide piston and cylinder rod cap off threaded end of rod Examine piston and rod cap for damage
42. removed except for adjustment Removal of such parts could create a fire hazard CHILDREN Tragic accidents can occur if the operator is not alert to the pres ence of small children Children are often attracted to the chipping and vacuuming activity Never assume that children will remain where you last saw them Keep children of the work area and under the watchful eye of responsibie adult other than the operator Be alert and turn the unit off if a child enters the area 9 Never allow children under the age of 16 to operate the chipper vacuum SERVIGE Use extreme care in handling gasoline and other fuels They are extremely flammable and the vapors are explosive amp Store fuel and in approved containers away from heat and open flame and out of the reach of children Check and add fuel before starting the engine Never remove gas cap or add fuel while the engine is running Allow engine to cool at least two minutes before refueling Replace gasoline cap securely and wipe off any spilled gasoline before starting the engine as it may cause a fire or explosion 8 Extinguish all cigarettes cigars pipes and other sources of ignition Never refuel unit indoors because flammable vapors will accumulate in the area Never store the machine or fuel container inside where there is an open flame or spark such as a gas hot water heater clothes dryer or furnace 9 Never run your machin
43. rive 7 If it does not loosen both hex nuts at the cable bracket See figure 5B Turn bottom nut counter clockwise to loosen the cable 9 Engage the drive clutch handle hold against upper handle and try to push chipper vacuum backward and forward The wheels should lock up If the wheels do not lock up loosen both hex nuts at the cable bracket Turn bottom nut clockwise to tighten the cable Recheck adjustment Tighten both hex nuts when correct adjustment is reached FIGURE 6 Chute FIGURE 8 KNOW YOUR CHIPPER VACUUM ATTACHING THE BAG Place bag inside of handle assembly Slip the opening on the bag over the discharge chute mak ing certain it is over the rib on the discharge chute See figure 6 Place the four straps on the top of the bag over upper handle hooking them on studs See figure 7 NOTE Be sure the bag goes under the drive clutch handle Squeeze the clamp on the drawstring and pull the drawstring tight Release the clamp INSTALLING THE SHIFT KNOB Remove the cardboard protecting the threads Thread the shift knob onto the end of the shift lever TAMPER PLUG The handle on the tamper must be in the vertical position as shown in figure 8 To determine which side of the tamper plug is up match the angle of the tamper plug to the angle of the chipper chute Insert the tamper plug into the chipper chute Tamper plug should remain in the c
44. tact your SEARS Service Center properly Engine oil level low 9 Fill crankcase with proper Too much vibration Loose parts or damaged Stop engine immediately and disconnect impeller spark plug wire Tighten bolts and nuts Make all necessary repairs vibration continues have unit serviced by a SEARS Service Center Stop engine immediately and disconnect spark plug wire Clean flail screen and inside of blower housing See Service Adjustments section of this manual Stop engine immediately and disconnect spark plug wire Remove lodged object Empty bag Sharpen or replace chipper blades Loss of power operation erratic Water or dirt in fuel system Carburetor out of adjustment Dirty air cleaner Unit does not Discharge chute clogged discharge Foreign object lodged in impeller Vacuum bag is full Chipper blades dull Rate of discharge slows considerably or composition of discharged material changes NOTE For repairs beyond the minor adjustments listed above please contact your nearest SEARS Service Center HOW TO ORDER REPLACEMENT PARTS RE PNR Each chipper vacuum has its own model number Your Sears merchandise has added value when you Each engine has its own model number consider that Sears has service units nationwide staffed with Sears
45. tenance Schedule above CHIPPER VACUUM LUBRICATION Lubricate the pivot points on the height adjustment mechanism once a season using a light oil CLEANING Clean the chipper vacuum thoroughly after each use Wash the bag periodically with water Allow to dry thoroughly in the shade Do not use heat ENGINE ENGINE OIL Only use high quality detergent oil rated with API service classification SF SG or SH Select the oil s viscosity grade according to your expected operating temperature 12 SAE 30 5W30 NOTE Although multi viscosity oils SE30 10W30 etc improve starting in cold weather these multi viscosity oils will result in increased oil consumption when used above 32 F Check your oil level more frequently to avoid possible engine damage from running low on oil Your four cycle engine will normally consume some oil therefore check engine oil level regularly approx imately every five hours of operation and before each usage Stop engine and wait several minutes before checking level With engine level the oil must be to FULL mark on dipstick refer to figure 10 Change engine oil after the first five hours of operation and every twenty five hours thereafter To Drain Oil Drain while engine is warm a Remove oil drain cap Refer to figure 10 Catch oil in a suitable container b When engine is drained of all oil replace drain cap securely Refill with fresh
46. uel and engine oil recommendations NOTE To determine right and left hand sides of your chipper vacuum stand behind and face the unit Refer to figure 7 Your chipper vacuum has been completely assem bled at the factory except for the front wheels hub caps nozzle chipper chute support bracket and bag A pair of safety glasses and bottle of oil are also included in the carton TO REMOVE CHIPPER VACUUM FROM CARTON Cut the corner of the carton Remove all packing inserts and loose parts Push down on handle to lift front of chipper vacuum and roll chipper vacuum out of the carton Make certain all parts and literature have been removed before the carton is discarded TOOLS REQUIRED FOR ASSEMBLY 1 3 4 Open End Wrench 2 1 2 or Adjustable Wrenches 1 9 16 Wrench 1 Funnel LOOSE PARTS IN CARTON See Figure 1 2 Front Wheels 1 Bag 2 Hub Capst 1 Shift Knobt 1 Nozzle 1 Tamper Plugt 1 Chipper Chute 1 Safety Glassest 1 Support Bracket 1 Bottle of Oil Shown HOW TO SET UP YOUR CHIPPER VACUUM ATTACHING THE FRONT WHEELS Tilt unit backward so that it rests on the handle place a piece of the carton under handle to avoid scratches Remove the cardboard packing material around the wheel brackets Remove the hex lock nuts and shoulder from the front of the wheel brackets See figure 2 Place wave washer on shoulder bolt Insert shoulder bolt through wheel with the head o
47. y to install snap ring as damage to seals may occur Install snap ring Place control valve in neutral Reattach tube to cylinder and wedge to rod Add oil to tank to within 1 from top Start engine and slowly cycle control valve several times to fill cylinder There will be a loud POP as cylinder rod cap seats over snap ring Cylinder may act jumpy until cylinder self purges of air When cylinder is full retract ram fully and stop engine Top off oil to within 1 5 to 2 from top of tank Remove wedge from rod and prop cylinder up again Clean and paint area of cylinder bore you originally sanded Complete reassembly cycle unit and check for leaks If possible test on a few logs
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