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Craftsman 79964 Owner's Manual

OWNER'S MANUAL 247.799640 Caution: Read and Follow All Safety Rules and Instructions Before Operating This Equipment CRRFTSMRN® 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. i inted in U,S.A. 770-8894K 2/95
! M PO RTANT OPERATION PRACTICES THIS SYMBOL POINTS OUT IMPORTANT SAFETY INSTRUCTIONS WHICH, IF NOT FOLLOWED, COULD ENDANGER THE PERSONAL A _ AFETY 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-- _ REED ITS WAFINING. & DANGER: Your chipper-vacuum was built to be operated according to the rules for safe operation in this manua. 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 couso result in serious injury or death. _hl. 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 piece 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 perform 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 individuats 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. • Always 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. • Do not over-reach. Keep proper footing and balance at all times. • 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 impetler can cause serious injury. • If it 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 the 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. • 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 to 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 impetler contin- ues to rotate for a few seconds after 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 prop- erly. • Do not allow an accumulation of processed material to build up in the discharge area as this will prevent proper discharge and can resutt in kick-back from the chipper chute. • Keep your face and body back from chipper chute to avoid acci- 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 parts. • Check for any loose parts and tighten to assure continued safe operation. • Muffter and engine become hot and can cause a burn. Do not touch. • Do not altow leaves or other debris to build up on engine's muf- fler. The debris could ignite and cause a fire. • Do not operate engine ff air cleaner or cover over carburetor air- intake is removed, except for adjustment. Removal of such parts could create a fire hazard. _lb 11, 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 out of the work area and under the watchful eye of a responsible adult other than the operator. • Be alert and turn the unit off if e child enters the area. • Never allow children under the age of 16 to operate the chipper- Vacuum. _1 111. SERVICE • Use extreme care in handling gasoline and other fuels. They are extremely flammable and the vapors are explosive. • Store fuel and oil 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. • 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 not water heater, clothes dryer or furnace. • Never run your machine in an enclosed area as the exhaust from the engine contains carbon monoxide, which is a odorless. tasteless and deadly poisonous gas. • To reduce fire hazard, keep engine aria muffler free of leaves. grass, and other debris build-up, Clean up fuel and oi! spillage. Allow unit to cool at least 5 minutes before storing. • Before cleaning, repairing, or inspecting, make certain the =rop!!let and all moving parts flare 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. • 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 respect the unit for any damage. Repair damage before starting ano operating unit. • Do not alter or romper 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 Dog frequently for wear. Replace if worn or damaged. • Keep vacuum bag free of debris when not Jn use. SAF_ _ WARNING -- YOUR RESPONSmluTY Restrict the use of this power machine to persons who read, understand and follow the warmngs and instructions in this manual and on the machine.
CONGRATULATIONS on your purchase of a 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: 9.0 Engine Oil Capacity: SAE 30 API Classification SF, SG or SH (26 Ounces) Fuel Capacity: Approximately 1 Gallon (Unleaded) Spark Plug (Gap .030 in.): Champion J-8C (or Equivalent) Tire Pressure: 24 p.s.i. 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 a spark arrester meeting applicable local or state laws (if any). If 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, ]ubricated, and tuned up according to the operating and maintenance instructions in the operator's 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. If this chipper-shredder is used for commercial or 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
i TABLE OF CONTENTS SAFETY RULES ..................................................... 2, 3 PRODUCT SPECIFICATIONS ................................... 4 MAINTENANCE AGREEMENT .................................. 4 CUSTOMER RESPONSIBILITIES ................. 4, 12. 13 WARRANTY ............................................................... 4 INDEX ......................................................................... ,5 ACCESSORIES .......................................................... 5 ASSEMBLY ............................................................. 6-8 OPERATION ......................................................... 8-11 CUSTOMER RESPONSIBILITt ES ..................... 12, 13 STO RAG E ................................................................ 14 SERVICE AND ADJUSTMENT ........................... 14-17 TROUBLE SHOOTING ............................................. 18 PARTS ORDERI N G/SERVICE ................................. 18 REPAIR PARTS--CHIPPER-VACUUM .............. 19-25 REPAIR PARTS--ENGINE ................................. 26-29 ill l INDEX = A Accessodes ................................................................ 5 Adjustments: Carburetor ............................................................. 17 Clutch Cable ........................................................... 7 Engine Speed ....................................................... 17 Shift Rod ............................................................... 16 Assembly Instructions .............................................. 6-8 C Catcher Bag ............................................................ 7, 8 Controls ...................................................................... 9 Customer Responsibilities .............................. 4, 12, 13 E Engine: Lubrication ............................................................ 12 Maintenance ................................................... 12. 13 Starting ................................................................. 11 Stopping ............................................................ 9.11 Storage ................................................................. 14 F Fuel ........................................................................... 10 L Lubrication ................................................................ 12 M Maintenance: Agreement ............................................................. 4 Schedule ............................................................... 12 Engine ............................................................. 12, 13 Chippet'-Vacuum .................................................. 12 O Oil ............................................................................. 10 Operating Tips ...................................................... 9, 10 R Repair/Replacement Parts .................................. 19-29 Responsibilities, Customer ............................ 4, 12, 13 S Safety Rules ........................................................... 2, 3 Sharpening ............................................................... 15 Spark Plug ................................................................ 13 Specifications .............................................................. 4 Storage ..................................................................... 14 T Table of Contents ....................................................... 5 Trouble Shooting ...................................................... 18 U Unclogging .......................................................... 14, !5 Unpacking ................................................................... 6 W Warranty .................................................................... 4 i=lu= 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. Spark Plug w Air Muffler Filter ENGINE Engine[ Gas Can Oil I Stabilizer CHIPPER-VACUUM Vacuum Hose Kit
ASSEMBLY INSTRUCTIONS i Hub Bag FIGURE 1. Rex Lock Cupped Washer Cupped Side FIGURE 2. Nozzle FIGURE 3. Front Wheels Wheel Bracket Wave Washer Shoulder Bolt Hub Wing Nuts iiii IMPORTANT: This unit is shipped WITHOUT GASO- LINE or OIL in the engine. After assembly, see opera- tion section of this manual for proper fuel 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 Caps-I (1) Shift Knob1- (1) Nozzle (1) Tamper Plug-i- (1) Chipper Chute (1) Safety Glasses-I" (1) Support Bracket (1) Bottle of Oil tNot 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 bolts from the front of the wheel brackets. See figure 2. • Place wave washer on shoulder bolt. Insert shoulder bolt through wheel, with the head of the shoulder bolt through the flat side of the wheel. • Assemble wheel to outside of wheei 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.
Upper Handle i _Chiploer Chute jpporl racket FIGU RE 4. "Z" End of Cable Hole in Drive Clutch Handle O Nuts Cable is Straight FIGURE 5. Nuts Rib Bag Discharge Chute ..J Drawstring FIGURE 6. He)( Bolts, Flat its HexNuts Nuts t / Drive Clutch Handle Drive Clutch Handle / 7 ATTACHING THE CHIPPER CHUTE AND SUPPORT BRACKET (See figure 4) • Remove the two hex !ock nuts from the hex bolts which secure the right side of the upper handle to the lower handle, Leave bolts and washers in place. • 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. NOTE: Cupped side of the washer goes against the chipper chute. See figure 2 to identify cupped side of washer, • Remove the two hex bolts, flat washers and nuts which are attached to the support bracket. • Attach the support bracket to the bottom of the chipper chute loosely using the hardware removed previously. HEADS OF THE HEX BOLTS AND WASHERS GO TO THE INSIDE OF THE CHIPPER CHUTE. • Place the support bracket over the [wo bolts in the handle. Pushing UP on the chipper chute will aid 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 "Z" end o_ = 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 no slack in the cable, but the cable is NOT tight. Do not overtighten the cable. See figure 5B. To check the clutch adjustment, oroceed as follows. • Push tl_e chipper-vacuum backward and forward with the drive clutch handle released. It should move freely. If it does not, loosen both hex nuts at the cable bracket. See figure 5B. Turn bottom nut counter- clockwise to loosen the cable. • 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 (:able bracket, Turn bottom nut clockwise to tighten the cable. • Recheck adjustment, Tighten both hex nuts when correct adjustment is reached.
Stra Straps on aps on Shift Knob_ Baa Upper Handle / I FIGURE 7. FIGURE 8. i OPERATION 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 puff 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 plug 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 chipper chute whenever the chipper chute is not in use. ==1 KNOW YOUR CHIPPER-VACUUM 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. Shift Lever Drive Clutch Handle Chipper Chute Oil Dipstick Choke Starter Han< Spark Plug Boot FIGURE 9. Nozzle Fast
MEETS ANSI SAFETY STANDARDS Sears chipper-vacuums conform to the safety standards of the American National Standards InsUtute. OPERATING CONTROLS (See figure 9) SHIFT LEVER--The shift lever determines ground speed. It may be placed in one of eight positions. Forward--one of six speeds. Position number one (1) Es the slowest. Position number six (6) is the fastest. Reverse--two reverse (R) speeds. "R" (all the way to the right) is the faster of the two. DRIVE CLUTCH HANDLE (BAIL)--Squeezing the drive clutch handle against the upper handle engages the wheel drive. Release the drive clutch handle to stop the forward ddve. CHOKE LEVER--Used to enrich the fuel mixture in the carburetor when starting a cold engine. STARTER HANDLE--Used to manuatty 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. The operation of any chipDer-vacuurr 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 chi_pJng, or while _erforming any adjustments er repairs We recommend Wide Vision Safety Mask for over spectacles or standard glasses available at Sears Retail er Catalog Stores. 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 _IL 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 _ositions or two REVERSE positions. Select a speed appropri- ate for the conditions that exist. Use the slower speeas until you ere familiar with the operation of the chipper-vacuum. e To engage the wheel drive, hold the drive clutch handle against the chipper-vacuum handle. Releasing the drive clutch handle stops the wheels from driving. Retease 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. Tun- the knob clockwise to raise the nozzle. Turn the knob counterclockwise to lower. (Be careful not to turf knob too far--rod could come out of ferrule.) 9 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 Adjustment Knob i ! FIGURE 10. USING THE CHIPPER CHUTE Do not a_empt to chip any materiel other than vegeta- tion found in a normal yard (i.e., branches, leaves, twigs, etc.). Matedal 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,
If necessary, use the tamper plug provided to push material into the chipper chute. See figure 8. NEVER PLACE HANDS INSIDE CHIPPER CHUTE. PIace tamper plug inside chipper chute when not in use to deaden the sound. FIGURE 11. 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. If 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 dutl 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. FIGURE 12. 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 < 32°F _- Warmer 5W30 SAE 30 NOTE: Although multi-viscosity oils (5W30, 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. Capacity is approximately 26 ounces. Be careful 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. 10 Oil Fill Dipstick Oil Drain FIGURE 13. GAS • Remove fuel cap and fill 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 tong periods of storage in the container. Replace fuel cap. _L 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 STORAGE. 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). • Place one foot on the left rear wheel to 0revent the unit from skidding while starting. • Grasp starter handle and pull rope out slowly until engine reaches start of compression cycle (rope will pull slightly harder at this point). Let the rope rewind slowly. 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 failing into place, and should be expected. In addition, 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 hatfway between CHOKE and OFF. NOTE: ff 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- uzes 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 Off Position Position Lever FIGURE 14, TO STOP ENGINE • 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. 11
CUSTOMER RESPONSIBILITIES ,,==,= o=,== . * ==. 0== ===v,c= O" o..== F- _ Oil Pivot Points "J a O _: Clean Chipper-Vacuum _/ _ Check Engine Oil _/ Change Engine Oil _/ _J UJ Service Air Cleaner _/ z Clean Engine Cylinder q _/ ug Spark Plug _/ ._I Muffler _/ _/ CHECK GENERAL RECOMMENDATIONS Colder _ 32°F _- Warmer _b 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 Maintenance 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. 5W30 SAE 30 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 oil 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 oil 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 oil. Refer to GAS AND OIL FILL- UP section. • Replace dipstick. 12
AIR 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 Cleaner; 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 pro-cleaner 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 air 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. e If necessary, replace filter (do not attempt to ctean). • Install new filter on base. Slide pre-cleaner over filter. • Install cover and wing nut. Tighten wing nut securely. WARNING: PERIODICALLY CLEAN MUF _ FLER AREA TO REMOVE ALL GRASS, DIRT AND COMBUSTIBLE DEBRIS. Cool 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 solvent. Feeler Gauge Base Filter Pre-Cleaner Wing I Nut FIGURE 15. Cover 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 contami- nate the fuel system. Yearly or every 25 hours, whichever occurs first, remove the air intake screen and blower housing, and clean the areas shown in figure 16 to avoid over- speeding, overheating and engine damage. Clean more often if necessary. FIGURE 17. Plug MUFFLER Do not operate the chipper-vacuum without a muffler or tamper with the exhaust system. Damaged mufflers or spark arrestors 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. 13
ii , =1 ,i, i STORAGE .... ii i 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, ETCo NOTE: A yearly check-up by your local Sears Service Center is a good way to make certain your chipper- vacuum will provide maximum performance for the next season. CHIPPER-VACUUM • Clean the chipper-vacuum thoroughly. • Wipe unit with an oiled rag to prevent rust (use a light oil or silicone). ENGINE .... i e 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 fue! next season. NOTE: Fuel stabilizer is an acceptable alternative in minimizing the formation of fuel gum deposits 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, e Drain all the oit from the crankcase (this should be done after the engine has been operated and is still warm) and refill the crankcase with fresh oil. o 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 oit into cylinder and crank slowly to distribute oil. Replace spark plug. IMPORTANT: IT IS 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. OTHER • Do not store gasoline from one season to another. e Replace your gasoline can if your can starts to rust. Rust and/or dirt in your gasoline will cause problems, o 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 oi! or silicone. ........ iiii i .......... SERVICE & ADJUSTMENT ...... , u_ . 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 FLAIL 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. • Remove the vacuum bag from the unit. • Remove the four self-tapping screws from the bottom of the discharge chute, and the hex bolt, 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. 14
Discharge Chute Assembly Belt Cover Hex Bolt Flat Washer Flex Nut FIGURE 18. npping Screws ! • Remove the two hex bolts and hex nuts which extend through the housing. Lift the flail screen from inside the housing. See figure 19. Flail Screen Hex Bolts Hex Nuts Self-Tapping Screws FIGURE 20. • Remove the access plate by removing two hex lock nuts. See figure 21. 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 flail 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. FIGURE 21. 15 • Locate one of the ch!pper 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, ff sharpening, make certain to remove an equal amount from each blade. Reassemble in reverse order. NOTE: Make certain blades are reassembled with the sharp edge facing upward, as viewed from the access plate opening.
CHAHGIHG 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. • Remove the frame cover by removing eight self- tapping screws from underneath the chipper- vacuum. See figure 22. FIGURE 22. Frame Cover • 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. F_cti I I 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. Reassemble in reverse order. • Readjust the clutch cable. Refer to adjustment sec- tion. CLUTCH CABLE ADJUSTMENT To adjust the clutch cable, refer to the "Crutch Cable Adjustment" section of Assembly instructions. SHIFT ROD ADJUSTMENT If 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). o 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. • 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 nit 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, Shift Lever 6th Position Shift
BELT REMOVAL AND REPLACEMENT WARNING: Disconnect the spark plug wire and move away from the spark plug. • Remove the plastic belt cover on the front of the engine by removing two self-tapping screws. Refer to figure 19. • 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 chi0per- 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 Iine up the holes in the idler bracket assembly. Insert a nail 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. Eng \ ' Bracket Self-Tapping Screws Nail FIGURE 25. • Remove the hex bolt 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. • 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 wheel and friction wheel disc. Remove and replace belt. Reassemble following instruction in reverse order. NOTE: The support bracket must rest on the stop bolt after the new belt has been assembled. Loosel Nut Stop Bolt Support Bracket Friction 'Wheel Disc FIGURE 26. CARBURETOR ADJUSTMENT ,_ WARNING: IF ANY ADJUSTMENTS ARE MADE TO THE ENGINE WHILE THE ENGINE 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 ancl should not require adjustment. However, if your engine does not operate properly due to suspecteC 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 ir 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. 17
TROUBLE SHOOTING PROBLEM CORRECTIVE ACTION Engine tails to start Loss of power; operation erratic POSSIBLE CAUSE(S) • Fuel tank empty, or stale fuel. • Spark plug wire disconnected. • Faulty spark plug. • Nozzle safety switch not depressed. • Spark plug wire loose. • Unit running on CHOKE. • Blocked fuel line or stale fuel. • Water or dirt in fuel system. • Carburetor out of adjustment. • Dirty air cleaner. • Engine overheats • Carburetor not adjusted • properly. • Engine oil level low. • Too much vibration • Loose parts or damaged • impeller. Unit does not • Discharge chute clogged. • discharge Rate of discharge slows considerably or composition of discharged material changes • Foreign object lodged in impeller. • Vacuum bag is full. • Chipper blades dull. • Fill tank with clean, fresh fuel. • Connect wire to spark plug. • Clean, adjust gap or replace. • Adjust metal tab so it depresses the safety switch. • Connect and tighten spark plug wire. • Move choke lever to OFF position. • 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. Contact your SEARS Service Center. Fill crankcase with proper oil. Stop engine immediately and disconnect spark plug wire. Tighten all bolts and nuts. Make all necessary repairs. If 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. NOTE: For repairs beyond the minor adjustments listed above, please contact your nearest SEARS Service Center. HOW TO ORDER REPLACEMENT PARTS Each chipper-vacuum has its own model number. Each engine has its own model number. 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 blower housing of the engine. Atl parts listed herein may be ordered through Sears, Roebuck and Co. Service Centers and most Retail Stores. WHEN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION: *PRODUCT - "9 H.P. Chipper-Vacuum" *MODEL NUMBER - 247.799640 *ENGINE MODEL NO. - 143.959003 *PART NUMBER *PART DESCRIPTION Your Sears merchandise has added value when you consider that Sears has service units nationwide staffed with Sears trained technicians...professional technicians specifically trained on Sears products, having the parts, tools and the equipment to insure that we meet our pledge to you..."we service what we sell ." IF YOU NEED REPAIR SERVICE OR PARTS: REPAIR SERVICE 1-800-4-REPAIR (1-800-473-7247) ORDERING PARTS 1-800-FON-PART (1-800-366-7278 18
SEARS CRAFTSMAN 9 H.P. CHIPPER-VACUUM MODEL NO. 247.799640 Repair Parts REF, NO. 1 2 3 4 5 6 7 8 9 10 11 t2 13 14 15 PART NO. 1539-019 647-0019 649-0008 1649-0012 681-0076 710-0116 710-0380 710-0621 710-0896 710-3008 71143677 711-0737 712-0116 712-3004A 714-0104 DESCRIPTION PUSHNUT CONTROL ASSY HANDLE ASSY-UPPER HAN D LE ASSY-LOWER BRACKET ASSY-SHIFT QTY. 4 1 1 1 1 REF. NO. 16 17 18 19 20 PART NO, 720-0232 725-0157 735-0126 736-0264 736-0300 DESCRIPTION KNOB-SHIFT CABLE TIE WASHER, RUBBER WASHER-FLAT WASHER-FLAT SCREW-HEX SCREW-HEX SCREW-HEX SCREW-HEX SCREW-HEX FERRULE PIN-STUD NUT-HEX LOCK NUT-HEX LOCK PIN-COTTER 4 2 1 2 4 1 4 1 11 2 21 22 23 24 25 26 27 28 29 736-0413 736-0451 738-0560 738-0561 741-0402 746-0921 747-0626 781-0626 784-0297 t WASHER-SPRI NG WASHER-SADDLE SCREW-SHOULDER NUT-SHOULDER BEARING-FLANGE PLASTIC CABLE-CLUTCH ROD-SHIFT COVER-SHIFT HANDLE-SHIFT 19 QTY. 1 2 1 1 1 2 6 1 1 2 1 1 1 1
SEARS CRAFTSMAN 9 H.P. CHIPPER-VACUUM MODEL NO. 247.799640 Repair Parts REF. NO. 1 2 3 4 5 6 7 8 9 10 11 12 PART NO. 629-0241 681-0059 681-0060 710-0382 710-0604 710_607 710-0772 712-1268 710-3008 712-0384 712-0421 712-3004A REF. PART DESCRIPTION QTY. NO. NO. HARNESS--CHIPPER-VAC 1 13 HOUSING ASSY--INNER 1 14 HOUSING ASSY--OUTER 1 15 SCREW-HEX 2 16 SCREW-HEX SELF TAP 10 17 SCREW-HEX SELF TAP 8 18 SCREW-HEX 3 19 SCREW-HEX SELF TAP 2 20 SCREW-HEX 2 21 NUT-HEX LOCK 2 22 KNOB 3 23 NUT-HEX LOCK 4 24 2O 712-3010 719-0326 723-0438 725-1700 725-3166 726-0272 731-1613 736-0119 736-0242 781-0598 781-0599 781-0627 DESCRIPTION NUT-HEX (GR 5) SCREEN SEAL-RUBBER COVER-SWITCH SNAP MOUNT SWITCH CLAMP COVER-SWITCH WASHER-LOCK WASHER-BELL BLADE-FLAfL HOUSING BLADE-FLAIL HOUSING COVER-CHIPPER QTY. 3 1 2 1 1 1 1 3 3 1 1 1
SEARS CRAFTSMAN 9 H.P. CHIPPER-VACUUM MODEL NO. 247.799640 Repair Parts REF. PART NO. NO. DESCRIPTION QTY. 1 681-0078 IMPELLER ASSY COMP. (!NCL. REF. NOS. 2 THRU 12) SCREW-HEX WASHER-LOCK WASHER-FLAT IMPELLER ASSY PIN-CLEVIS SCREW-FLAT HEAD NUT-HEX LOCK PIN-ROLL SPRING BLADE-FLAIL WASHER-LOCK BLADE-CHIPPER 2 710-1273 3 736-0217 4 736-0247 5 681-0078 6 711-0833A 7 710-1054 8 712-0411 9 715-0249 10 719-0329 11 736-0119 12 742-0544 1 1 1 1 1 3 4 4 3 3 4 4 ® ® REF. PART NO. NO. DESCRIPTION QTY. 1 631-0029 NOZZLE ASS'Y.-VACUUM 1 2 731-1616 CHUTE-DISCHARGE 1 3 764-0473 BAG-VACUUM 1 FIEF, NO. DESCRIPTION PART NO. 681-0068 710-0258 712-3027 731-1609 781-0625 731-1617 CHUTE ASSEMBLY SCREW HEX NUT-LOCK CHUTE-CHIPPER UPPER BRACKET SUPPORT TAMPER PLUG (Not Shown) 1 2 3 4 5 QTY" t 5 = \ 1 1 1 21
SEARS CRAFTSMAN 9 H.P. CHIPPER-VACUUM MODEL NO, 247.799640 Repair Parts REF. i PART NO. NO. 710-0230 1710-0723 710-0896 711-0758 _ 712-0266 712-3004A 719-0330 731-1584 _ 732-0745 1 736-0329 11 738-09O8 12 754-0256 13 756-0313 14 756-0649 15 781-0611 16 781-0614 DESCRIPTION QTY. SCREW-HEX SCREW-HEX SCREW-HEX NUT-HEX SHOULDER NUT-HEX LOCK NUT-HEX LOCK FLANGE ADAPTER-MOU NTING 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 I 1 1 1 \ \ REF. PART NO. NO, DESCRIPTION 1 2 3 8 9 10 11 12 13 14 15 16 17 681-0070 I'710-0520 1710-0924 712_3004A 712-3005 1714-0115 i716-0104 720-0236 736-0270 736-0300 736-0369 738-0258 747-0631 750-0985 781-0605 QTY. BRKT ASSY--WHEEL PIVOT 1 SCREW-HEX 1 SCREW-MACHINE PAN HD 1 SCREW-HEX 2 FERRULE--ADJUSTABLE 1 NUT-HEX FLANGE 2 NUT-HEX FLANGE LOCK 2 PIN-COTTER 1 RING-E 1 KNOB-PLASTIC 1 WASHER-BELL 1 WASHER-FLAT 2 WASHER-FLAT 2 SCREW-SHOULDER 1 ROD-ADJUSTABLE 1 SPACER 1 BRACKET-HEIGHT ADJ 1 22
SEARS CRAFTSMAN 9 H P CHIPPER,VACUUM MODEL NO 247,799640 Repair Parts 27 I I ,I ! 9 8 I i 23
SEARS CRAFTSMAN 9 H.P. CHIPPER-VACUUM MODEL NO. 247.799640 Repair Parts REF. NO. 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 PART NO, 618-0063 618-0168 656-0009 756-0564 738-0865 741-0600 681-0055 681-0058 681-0069 681-0072 681-0073 684-0042 DESCRIPTION BEARING ASSY-FRICTION WHEEL DIFFERENTIAL ASSY COMP. DISC-FRICTION WHEEL ASSY COMP. DISC-FRICTION WHEEL BOLT-SHOULDER BEARING-BALL BRACKET ASSY-SUPPORT BRACKET ASSY-AXLE SHAFT ASSY-SHIFT ARM ASSY-SHIFT FRAME ASSY WHEEL ASSY-FRICTION QTY. 1 1 1 2 1 1 1 1 REF. NO. 20 21 22 23 24 25 26 27 28 29 3O 31 32 33 PART NO. 1713-0330 713-0374 713-0415 714-0474 716-0102 716-0185 732-0264 736-0105 736-0119 736-0160 736-0267 i736-0287 i736-3089 738-0908 DESCRIP_ON SPROCKET & HUB CHAIN SPROCKET 11T P I N -COTTE R RING-SNAP RING-SNAP SPRING-EXTENSION WASHER-BELL WASHER-LOCK WASHER-FLAT WASHER-FLAT WASHER-FLAT WASHER-FLAT BOLT-IDLER 710-0502A SCREW-HEX SELF-TAP 4 710-0653 SCREW-HEX WASHER 2 710-0788 SCREW-HEX WASHER 1 710-0896 SCREW-HEX 8 710-3008 SCREW-HEX 6 711-1026 SHAFT-H EX 1 711-1028 i SHAFT-JACK 1 712-0241 I NUT-HEX _ 2 712-0711 NUT-HEX JAM 1 712-3004A NUT-HEX FLANGE LOCK 5 34 35 36 37 38 39 40 41 42 741-0563 748-0382 750-0351 750-0978 750-0979 750-0980 750-0981 781-0612 784-5590 BEARING-BALL SPACER SLEEVE SPACER SPACER SPACER SPACER COVER-FRAME ! BRACKE_SHIFT t QTY. 1 1 , 1 1 2 1 1 3 2 1 2 4 2 1 2 1 1 1 ', 1 E 1 ; 1 I I ® REF, PART DESCRIPTION t QTY. NO. NO, 1 634-0100 2 3 4 5 6 7 8 9 10 634-0101 734-1598 711-1017 712-3005 714-0104 731-0981A 734-1793 736-0105 736-0232 738-0213 734-0255 WHEEL ASSY COMPLETE 4"X 10" RIM ASSY COMPLETE TIRE PNEUMATIC 4" X 10" PIN-CLEVIS NUT-HEX FLANGE PIN-COTTER HUB CAP WHEEL 2" X 8" WASHER-BELL WASH ER-WAVE SCREW-SHOULDER VALVE STEM 2 2 2 2 2 2 2 2 2 2 2 I 2 24
SEARS CRAFTSMAN 9 H.P. CHIPPER-VACUUM MODEL NO. 247.799640 REF. NO. 2 3 4 5 6 7 8 9 10 11 12 13 14 Repair Parts PART NO. 618-0168 710-1206 711-1035 711-1037 711-1038 713-0445 716-0232 DESCRIPTION DIFFERENTIAL ASSY COMPLETE SCREW-HEX SHAFT-CROSS AXLE-SHAFT 10.95" LONG AXLE-SHAFT 9.82" LONG SPROCKET 22 T RING-RETAINING (2 PER AXLE) GEAR-DIFFERENTIAL 14T GEAR-DIFFERENTIAL t0T HOUSING-DIFFERENTIAL RN HOUSING-DIFFERENTIAL LH BEARING-FLANGE GREASE { SEALANT-LOCTITE 5699 i .© / / 717-1358 717-1437 719 -0333 719-0334 748-0383 737-0300 2 J- 2 1 1 2 1 oz / \ REF. PART NO. NO. DESCRIPTION QTY. 1 710-3008 2 712-3004A 3 726-0205 4 751-0535-8 5 751-0603 6 751-0615 726-0209 SCREW-HEX NUT-HEX LOCK FLANGE CLAMP-HOSE HOSE-FUEL LINE 8" CAP-FUEL TANK-FUEL 1 GALLON CABLE TIE (NOT SHOWN) 2 2 2 1 1 1 1 25
SEARS CRAFTSMAN 9 H.P. ENGINE MODEL NO. 143.959003 Repair Parts 305 400 757: 87 7O 69 119 65 308 t82 184 .,.> 380/_ _' "" "" 277 238 239 / 240 242 276 I ! ] 275 251 72 / 25 26 186 26 101 I I " 292 _"_ 296 26! 285 € / 286 f/281282 370e
SEARS CRAFTSMAN 9 H.P. ENGINE MODEL NO. 143.959003 Repair Parts KEY NO. 1 2 4 5 15 15A 15B 16 17 18 19 20 25 26 28 30 35 36 37 38 40 40 40 41 41 41 42 42 42 43 45 46 47 48 49 50 60 65 69 70 71 72 75 8O 81 82 83 84 86 87 89 90 92 93 100 101 l DESCRIPTION t PART NO. 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 34034 35374 36569 33273A 650128 35262A 35445A 35377 27642 35319 31845 30590A 35378 30588A 29193 650833 650832 32589 611090 650880 650881 35135 610118 Cylinder (Incl. 2 & 20) Dowel Pin Oil Drain Extension Extension Cap Governor Rod (Incl. 15A & 15B) Governor Yoke Screw, 6-40 x 5/16" Govemor Lever Governor Lever Clamp Screw, 8-32 x 5116" 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 & Ring Set (Std.) Piston, Pin & Ring Set (.010" OS) Piston, Pin & Ring Set (.020" OS) Piston & Pin Ass'y. (Std.) (Incl. 43) Piston & Pin Ass'y. (.010" OS) (Incl. 43) Piston & 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 & 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 & 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 Solid State Ignition Spark Plug Cover KEY NO. 102 103 110 119 120 125 125 126 126 127 128 129 130 135 139 140 149 149A 150 151 169 170 171 172 173 174 178 182 184 185 186 20O 203 204 206 207 209 2!5 223 224 238 239 240 242 245 245A 250 251 260 261 262 264A 265 275 276 277 281 282 285 PART NO. DESCRIPTION 650872 650814 35187 36448 36449 27878A 27880A 34035 34036 650691 650690 650738 650694A 33636 33369 650836 27882 35862 27881 32581 27896A 28423 28424 28425 35350 650128 29752 30088A 33263 34707 34661 34677 31342 650549 610973 33878 650821 32410 650378 27915A 28820 27272A 33266 33267 33268 35881 33269A 650513 333750 650788 29747B 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.) (IncL 151 ) Exhaust Valve (1/32" OS) (Incl. 151 ) Intake Valve (Std.) (Incl. 151) Intake Valve (1/32" OS) (Incl. 151 Washer Belleville Washer Screw, 1/4-20 x 5/8" Screw, 5/16-18 x 2" Resistor Spark Plug (RJ17LM) Govemor 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 Valve Cover Breather Tube Screw, 10-24 x 1/2" Nut & Lock Washer, 1/4-28 Screw, 1/4-28 x 1" Carburetor To Intake Pipe Gasket Intake Pipe Governor Link Control Bracket (Incl. 203 & 204) Compression Spring Screw, 5-40 x 7/16" Terminal Throttle Link Screw, 10-32 x 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 Housing 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 Plate Screw, 5/16-18 x 3-3/16" Starter Bubble Cover Screw, 8-32 x 3/8" Starter Cup 27
SEARS CRAFTSMAN 9 H.P, ENGINE MODEL NO. 143.959003 Repair Parts KEY PART NO. NO. 286 35446 287 29752 290 30705 292 26460 296 34279B 305 35554 307 35499 308 35540 310 36205 325 29443 327 35392 342 30063 DESCRIPTION Starter Screen Nut & Lock Washer, 1/4-28 Fuel Line Fuel Line Clamp Starter Screen Oil Fill Tube "O"-Ring Fill Tube Clip Dipstick Wire Clip Starter Plug Screw, Terx T-30, 1/4-20 x 1/2" KEY PART NO. NO. 370 36261 370A 35703 370B 35532 370C 35274 380 632689 390 590671 400 DESCRIPTION Instruction Decal Throttle Decal Logo Decal i Instruction Decal Carburetor (Incl. 184) Rewind Starter Note: This engine could have been built with 590704 starter. Refer to the design of the air intake louvers for part identification. Individual starter parts do not interchange. 36454 Gasket Set RPM Setting: High Speed: 3450 to 3750 Low Speed: 1700 I OPTIONAL SPARK ARRESTER I Part No. 34479A 6 7 10 11 12 13 14 15 16 17 Y PART DESCRIPTION L NO. , 632689 632243 632244 631184 631183 632517 650506 632249 632043 631184 631183 632248 630735 632164 650417 630766 632281 630766 630739 630740 631867 631024 632019 631028 631021 631022 632239 630740 630739 630738 27110 630748 631027 632347 Carburetor (Incl. 184 of Engine Parts List) Throttle Shaft & Lever Assembly Throttle Return Spring Dust Seal Washer Dust Seal (Throttle) Throttle Shutter Shutter Screw Choke Shaft & Lever Assembly Choke Return Spring Dust Seal Washer Dust Seat (Choke) Choke Shutter Choke Positioning Spring Fuel Fitting Throttle Crack Screw/Idle Speed Screw Tension Spring Idle Mixture Screw Tension Spring Idle Mixture Screw Washer Idle Mixture Screw =O"-Ring Float Bowl Float Shaft Float Float Bowl "O"-Ring Inlet Needte, Seat & Clip (Incl. 31) Spring Clip Main Adj. Screw Ass'y. (Incl. 41 thru 44) High Speed Mixture Screw "O'-Ring High Speed Mixture Screw Washer High Speed Mixture Screw Tension Spring Bowl Nut Washer Welch Plug, Idle Mixture Well Welch Plug, Atmospheric Vent Repair Kit* (Incl. Items Marked PK in Notes) 28 **(Incl. Part Nos. 27272A, 27896A, 27915A, 29673, 33263, 33629, 34698A, 35262 & 36448)
SEARS CRAFTSMAN 9 H.P. ENGINE MODEL NO. 143.959003 Repair Parts PARTS LIST FOR RECOIL STARTER KEY PART NO. NO. DESCRIPTION m 1 2 3 4 5 6 7 8 11 12 13 590671 590599A 590600 590679 590601 590678 590680 590412 590681 590683 590456 590387 Recoil Starter Spring Pin (Incl. 4) Washer Retainer Washer Brake Spring Starter Dog Dog Spring Pulley & Rewind Spring Ass'y. Starter Housing A,s,s'y. , Starter Rope (114 x 11/64 Dia. Starter Handle _'_4 PARTS LIST FOR RECOIL STARTER (OPTIONAL) KEY PART NO. NO. DESCRIPTION m 1 2 3 4 5 6 7 8 11 12 13 590704 590599A 590600 590696 590601 590697 590698 590699 590700 590705 590535 590701 Recoil Starter Spring Pin (Incl. 4) Washer Retainer Washer Brake Spring Starter Dog Deg Spring Pulley & Rewind Spring Ass'y. Starter Housing Ass'y. Starter Rope (98" x 9/64" Dia.) Starter Handle O--2 --11 29
Seal kits for the new cylinders are the same as for the old cy ind.ers_ as a!l me internal components are the same, bore diam old cylinder new c_inder sealkit 4,0" 718-0307 718-0773 753-0490 4.5" 718-0306 718-0769 753-0563 To; ¸ DISTRIBUTORS & AUTHORIZED SERVICE DEALERS Re: LOG SPLITTER SEAL KITS As of February 1. 1999. log splitter cylinders under warranty capable of being repmred 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 a situation please contact MTD service. If you need a pressure test kit (part # 759-3742), contact your central distributor. This kit includes an ins,_"uc=ional video and is a,:ailable for loan or purchase. You will be rei_b'arsed for t_hc 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): Md_J CYLINDER NUMBER CYLINDER I.D. SEAL KIT _z._,...>718-0306 _zb-e 718-0307 718-0312 718-0313 4.5" 4.0" 4.25" 5.0" 753-0563 753-0490 753-0637 75320564 Best Metal cylinders (thread on end cap): CYL NDER NOMBER [ CYLINDER I.D. SEAL KIT 718-0307 [ 4.0" 753-0689 718-03'13 ! 5.0 _'' 753-0691 Procedure for Resealing Hydraulic Cylinders (On Machine - Fisher Cylinders - Snap-Ring Type) 1. Clean cylinder, wedge and beam area. 2. Fully retract cylinder rod into cylinder - stop engine. 3. With engine off, move control valve back and forth several times to be sure there is no pressure in system. 4. With a clean catch container in place, disconnect pump to control valve hose from pump fitting and in_ert end into container. Plug fitting on pump with plastic cap or tape. This is to prevent dirt from entering fitting, 5. Remove (4) ¥I" bolts securing the log dislodger and remove dislodger. 6, 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, Z. Lift rod up and place wood block under cylinder barrel to hold assembly at an angle, This will allow for rod removal 8. Place control valve into detent position 9, Using a wood dowel 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 dit_cult. 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 our. 10. Reconnect and tighten hose to pump.
1 1. Very lmportantH!! You must clean any paint or rust in the bore area by sanding it off. The paint wi}l be from the snap ring groove outward. After removing ALL uaint and rust leaving a smooth surface, coa_ exposed area inside cylinder with grease If you do not do this, fiJrther disassembly will be difficult and damage may result during reassemhIy! USE EXTREME CAUTION DURING NEXT STEP).). ). 12. Put control lever in neutral and start engine. Set engine at low idle speed, and use control valve lever 1o 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. 13. Have someone hold control lever in extend position and pull engine starter rope to extend rod slowly until the cy [nder rod cap can be pulled free of the cylinder. Do not remove end cap from rod. 14. Remove steel tube from fitting at end of cyl_nder and attach a ¾'" I.D. hose to fitting on the e_ linder using a hose damp. Place other end of hose into catch container. 15. Push rod into cylinder using cylinder rod cap as a guide. This will force oil out of cylinder through hose and into container. Do nol push turn down of rod into cylinder rod cap as damage to cap may result. Remove hose from cylinder. 16. 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 droptfing down on the beam Install a suitable bar or large screwdriver through bolt hole in rod and pull rod, cylinder rod cap and piston out of cylinder. 17". 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. 18. Prop cylinder up as close to vertical as possible with a wood block. 19. 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. 20. Examine piston and rod cap for damage. Remove old seals, bearings and o-rings from rod, pisto_ 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. 21. Using a tap and die or thread file, clean threads on rod and nut. 22. Cleanliness is vital throughout reassembly! Clean piston, rod, end cap and cylinder. 23. Lubricate seals and bearings with hydraulic oil and install them in end cap and piston. 24. Lubricate inside of cylinder rod cap 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 cap on. Any attempt to install the cap from the rod turn down end will result in seal lip damage. 25. Clean grease from exposed threads on 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. 26. 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. 27..Lubricate inside of cylinder _t__'th hydrau!{c oil and grease the end cap and piston. 28. Insert piston into cylinder being careful to not damage seals. Slide assembly in until piston is approximately 12" into barrel, then slide rod cap into cylinder and tap it injust past snap ring groove. Do not go farther than necessary to install snap ring as damage to seals may occur, install snap ring. 29. Place control valve in neutral. Reattach tube to cylinder and wedge to rod. 30. 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 !oud "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 offoil to within 1.5" to 2" from top of tank. 3 I. Remove wedge from rod and prop cylinder up again. Clean and paint area of cylinder bore you originally sanded. 32. Complete reassembly, cycle unit and check for leaks. If possible, test on a few logs.