Craftsman 247795940 User Manual 5HP CHIPPER SHREDDER Manuals And Guides L0803277
CRAFTSMAN Chipper Shredder/Vacuum, Gas Manual L0803277 CRAFTSMAN Chipper Shredder/Vacuum, Gas Owner's Manual, CRAFTSMAN Chipper Shredder/Vacuum, Gas installation guides
User Manual: Craftsman 247795940 247795940 CRAFTSMAN 5HP CHIPPER - SHREDDER - Manuals and Guides View the owners manual for your CRAFTSMAN 5HP CHIPPER - SHREDDER #247795940. Home:Lawn & Garden Parts:Craftsman Parts:Craftsman 5HP CHIPPER - SHREDDER Manual
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OWNER'S MANUAL MODELNO. 247.795940 I:RRFTSMRN® Caution: Readand Follow All SafetyRules andInstructions BeforeOperating This Equipment 5 HORSEPOWER 3 CUTTING STAGE MULCHING AND BAGGING CHIPPER-SHREDDER Assembly Operation Customer Responsibilities Service and Adjustment Repair Parts I ii ii SEARS,ROEBUCKAND CO., HoffmanEstates, IL 60179 U.S.A. Printed in U.S.A. 770-8474H 3/93 SAFETY RULES I_ WARNING: TO REDUCE SAFETY INSTRUCTIONS, PERSONAL INJURY. THE POTENTIAL FOR ANY INJURY, FAILURE TO COMPLY WITH THE TRAINING • Read this owner's manual carefully in its entirety before attempting to assemble or operate this machine. Be completely familiar with the controls and the proper use of this machine before operating it Keep this manuat in a safe place for future and regular reference and for ordering replacement parts. • Children must never be allowed to operate this equipment. • No one should operate this unit while intoxicated or while taking medication that impairs the senses or reactions, • This equipment should never be operated in the vicinity of children, pets or other persons. • Never run your machine in an enclosed area as the exhaust from the engine contains carbon monoxide, which is an odorless, tasteless and deadly poisonous gas. • Never place your hands or any part of your body or clothing inside the feeding chamber, discharge chute, or near any moving part while the machine or engine is running. • If it is necessary for any reason to inspect or repair the feeding chamber or 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 p)ug and move it away from the spark plug before attempting such inspection or repair. PREPARATION • Wear safety glasses provided with your unit while operating the chipper-shredder to prevent injury from any material which may be ejected out of the openings. • Wear proper apparel. Avoid wearing loose fitting clothing. Wear gloves when handling material. • HANDLE GASOLINE WITH CARE as it is an extremely flammable fuel. • Check the fuel before starting the engine. Do not fill the fuel tank indoors, while the engine is running, or while the engine is still hot. Turn the unit off and let the engine cool before refueling. • Fuel your chipper-shredder in a clean area. Do not smoke while refueling. • Fuel tank cap must be secure at alI times except during refueling. • Avoid spilling gasoiine or oil. Wipe the unit clean of any spilled fuel or oil. • Store fuel and oil in approved confiners, away from heat or open flame, and out of reach of children. • This machine should be operated only upon a level surface. • Assure that all screws, nuts and bolts and other fasteners are properly secured. OPERATION • When feeding shreddable 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. COMPLY WITH INSTRUCTIONS THE FOLLOWING MAY RESULT IN I I • If the cutting mechanism strikes any foreign object or if your machine should start making an unusual noise or vibration, immediately stop the engine, disconnect the spark plug wire from the spark plug and move it away from the spark plug. Allow the machine to stop and take the following steps: Inspect for damage. Replace or repair any damaged parts. Check for any loose parts and tighten to assure continued safe operation. • The engine must be kept clean of debris and other accumulations. • Do not allow an accumulation of processed material to build up in the discharge area as this will prevent proper discharge and can result in kick-back from feed opening. • Never place your hands or any other part of your body or clothing inside the feeding chamber, discharge chute or near any moving part while the engine is running. • Keep all guards and deflectors in place and in good working condition to assure continued safe operation. • Always stand clear of the discharge area when operating this machine. • Keep your face and body back from the feed opening to avoid accidental bounce back of any material. • Do not ever-reach. Keep proper balance and footing at all times. • The engine governor settings on your machine must not be altered, changed, or tampered with. The governor controls the maximum safe operating speeds and protects the engine and all moving parts from damage caused by overspeed. • Do net transport machine while engine is running. • Do not operate engine if air cleaner or cover directly over carburetor air intake is removed, except for adjustment. Removal of such parts could create a fire hazard. MAINTENANCE AND STORAGE • When this equipment is stopped for servicing, inspection, storage or to change an accessory, make sure the spark plug wire is disconnected from the spark plug and moved away from the spark plug. The machine should be allowed to cool down before making such inspection, adjustments, service, etc. Maintain your machine with care and keep it clean for the best and continued safe operation. • Do not use flammable solutions to clean the air filter. • When not in use, your machine should be stored out of the reach of children. Keep where gasoline fumes will not reach an open flame or spark. For long periods of storage, refer to the "Storage" section of this manual. LOOK FOR THIS SYMBOL TO POINT OUT IMPORTANT SAFETY PRECAUTIONS. ITI MEANS--ATTENTION!!! BECOME ALERT!!! I YOUR SAFETY IS INVOLVED. [ I CONGRATULATIONS PRODUCT SPECIFICATIONS on your purchase of a Sears Craftsman Chipper-Shredder. It has been designed, engineered and manufactured to give you the best possible dependability and performance. Should you experience any problem you cannot easily reinedy, please contact your nearest Sears Service Center/ Department in the United States. We have competent, welltrained 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-shredder properly. Always observe the "SAFETY RULES." MODEL NUMBER Horsepower: 5.0 Displacement: 12.00 cu. in. Fuel Capacity: 1-7/8 Quarts (Unleaded) Spark Plug (Gap .030 in.): Champion J-SC (or Equivalent) 247.795940 Ignition Air Gap: .0125 in. SERIAL NUMBER DATE OF PURCHASE MAINTENANCE AGREEMENT THE MODELAND SERIAL NUMBERS WILL BE FOUND ON A LABEL ATTACHED TO THE FRAME OF THE CHIPPER-SHREDDER. A Sears Maintenance Agreement is available on this product. Contact your nearest Sears store for details. YOU SHOULD RECORD BOTH SERIAL NUMBER AND DATE OF PURCHASE AND KEEP IN A SAFE PLACE FOR FUTURE REFERENCE. WARNING: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved 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 arrestor is used, il should be maintained in effective working order by the operator. CUSTOMER • • RESPONSIBILITIES Read and observe the safety rules. Follow a regular schedule in maintaining, caring for and using your chipper-shredder, Follow the instructions under "Customer Responsibilities" and "Storage" sections of this Owner's Manual. • 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.) lUl WARRANTY ONEYEAR LIMITED WARRANTY ON CRAFTSMANGAS CHIPPER-SHREDDER For one year from the date of purchase, tuned up according to the instructions material and workmanship. If this Craftsman Chipper-Shredder when this Craftsman in the owner's manual, is used for commercial Chipper-Shredder Sears is maintained, will repair, or rental purposes, free of charge, this warranty lubricated any applies and defect in for only 30 days from the date of purchase. This warranty does not cover: • • Expendable items which become worn during normal use, such as blades, chipper blades, spark plugs and catcher bags. Repairs necessary because of operator abuse or negligence, including bent crankshafts maintain the equipment according to the instructions contained in the owner's manual, flails, air cleaners, and the failure to WARRANTY SERVICE IS AVAILABLE BY RETURNING THE CRAFTSMAN CHIPPER-SHREDDER TO THE NEAREST SEARS SERVICE CENTER/DEPARTMENT IN THE UNITED STATES. THIS WARRANTY APPLIES ONLY WHILE THIS PRODUCT IS IN USE IN THE UNITED STATES. This warranty state. gives you specific legal rights, and you may also have other rights which may vary from SEARS, ROEBUCK AND CO., D/817WA, Hoffman Estates, IL 60179 state to TABLE OF CONTENTS SAFETY RULES ......................................................... 2 PRODUCT SPECIFICATIONS ................................... 3 MAINTENANCE AGREEMENT .................................. 3 CUSTOMER RESPONSIBILITIES ............................. 3 WARRANTY ............................................................... 3 INDEX ......................................................................... 4 ASSEMBLY ................................................................ 5 OPERATION ......................................................... 6-10 CUSTOMER RESPONSIBILITIES ..................... 10, 11 STORAGE ................................................................ 12 SERVICE AND ADJUSTMENT ........................... 12-14 TROUBLE SHOOTING ............................................. 15 PARTS ORDERING/SERVICE ................................. 15 REPAIR PARTS--CHIPPER-SHREDDER ........ 16, 17 REPAI R PARTS---ENGINE ................................. 17-20 iiiii INDEX i A ................................................................ Accessories 4 Adjustments: Carburetor ............................................................. 14 Engine Speed ....................................................... 14 Assembly Instructions: Catcher Bag ............................................................ 5 Chute Deflector ....................................................... 5 C Catcher Bag ................................................................ 5 Controls ................................................ ...................... 6 Customer Responsibilities .............................. 3, 10, 11 E Engine: Lubrication ............................................................ 10 Maintenance ................................................... 10, 11 Starting ................................................................... 9 Stopping .................................................................. 7 Sto rage ................................................................. 12 F Fuel ............................................................................. 8 L Lubrication ................................................................ !0 M Maintenance: Agreement ............................................................. 3 Schedule ............................................................... 10 Engine ............................................................. 10, 11 Chipper-Shredder ................................................ 10 O Oil ............................................................................... 8 Operating Tips ........................................................ 7, 8 R Repair/Replacement Parts .................................. 16-20 Responsibilities, Customer ............................. 3, 10, 11 S Safety Rules ............................................................... 2 Sharpening ......................................................... 13, 14 Spark Plug ................................................................ 1! Specifications .............................................................. 3 Sto rage ..................................................................... 12 T Table of Contents ....................................................... 4 Trouble Shooting ...................................................... 15 U Unclogging ................................................................ 12 Unpacking ................................................................... 5 W Warranty .................................................................... 3 CHIPPER-SHREDDER ACCESSORIES These accessories were available when the chipper-shredder 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-shredder. ENGINE Spark I Air Plug Filter Muffler Engine OII CHIPPER-SHREDDER Gas Can Stabilizer Vacuum Hose Kit Tow Hitch Kit iiii ASSEMBLY INSTRUCTIONS IMPORTANT: This unit is shipped WITHOUT GASOLINE or OIL. After assembly, see operation section of this manual for proper fuel and engine oil recommendations. NOTE: To determine right and left hand sides of your chipper-shredder, stand behind and face the hopper (engine is at the front of the unit). Your chipper-shredder has been completely assembled at the factory, except for the chute deflector and the catcher bag. A pair of safety glasses are atso included in the carton. TOREMOVE CHIPPER-SHREDDER FROMCARTON Cut the corners of the carton. Remove all packing inserts. Roll chipper-shredder out of the carton. Make certain all parts, literature and the safety glasses have been removed before the carton is discarded. TOOLS REQUIRED FOR ASSEMBLY (2) 7/16" or Adjustable Wrenches HOWTO SET-UPYOUR CHIPPER-SHREDDER MAKE CERTAIN THE SPARK PLUG WIRE IS DISCONNECTED AND MOVED AWAY FROM THE SPARK PLUG BEFORE ASSEMBLING THE CHIPPERSHREDDER. Chute Deflector Hex Nut ATTACHING THE CHUTE DEFLECTOR • Remove the hand knobs and cupped washers from each side of the discharge opening on the left side of the shredder. • Remove the hex lock nut, two spacers and hex bolt from inside the hinge on top of the discharge opening. Do not remove one spacer from the hex bolt. FIGURE 1. • Place the chute deflector in position on the discharge opening. Insert bolt through hinge on chute deflector and housing (spacer fits inside hinge). Drawstring • Place second spacer over the he)( bolt, inside the other part of hinge. Secure with hex lock nut. Tighten securely. • Secure both sides of the chute deflector to the housing using hand knobs and cupped washers (cupped side of washers go against chute deflector). ATTACHING THE CATCHER BAG Your chipper-shredder is equipped with a catcher bag to catch the shredded material FIGURE 2. • To attach bag, place bag opening over the chute deflector so it completely covers chute opening. Depress plunger on drawstring, pull on drawstring until bag is tight around chute opening. Release plunger to lock it into position. See figure 2. OPERATION KNOW YOUR CHIPPER-SHREDDER READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR CHIPPER-SHREDDER. Compare the illustrations with your chipper-shredder to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference. Hopper Assembly Oil Fill Dipstick Choke Release Chipper Control FIGURE 4. Catcher MEETS ANSI SAFETYSTANDARDS Sears chipper-shredders conform to the safety standards of the American National Standards Institute. OPERATINGCONTROLS(See CHOKE LEVER--Used figures 3 and 4) to enrich the fuel mixture in the carburetor when starting a cold engine. STARTER engine. HANDLE--Used to manually start the THROTTLE CONTROL--Controls stops the engine. RELEASE HANDLE--Used when lowering to the ground. BEFORE USING YOUR CHIPPER-SHREDDER, AGAIN REFER TO THE "SAFETY PAGE 2 OF THIS MANUAL. ALWAYS BE CAREFUL. engine speed and to release the hopper RULES" AS SHOWN ON The operation of any chipper-shredder 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-shredder or eye shields before chipping or shredding, 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. TO STOP ENGINE No Larger Than Diameter (Recommended) Or 1" Diameter (Maximum) • Move throttle control lever to OFF position. See figure4. • Disconnect spark plug wire and move away from spark plug to prevent accidental starting while equipment is unattended. Assembly HOW TO USE YOUR CHIPPER-SHREDDER Do not attempt to shred or chip any material other than vegetation found in a normal yard (i.e., branches, leaves, twigs, etc.). WARNING: THE CHIPPER-SHREDDER DISCHARGES MATERIALS WITH CONSIDERABLE VELOCITY. KEEP AWAY FROM THE AREA AROUND THE CHUTE DEFLECTOR. ALWAYS STOP THE ENGINE AND DISCONNECT THE SPARK PLUG WIRE WHEN REMOVING OR AI"I'ACHING THE BAG WHEN CHANGING CONTAINERS OR WHEN REMOVING THE SHREDDED MATERIAL. WEAR SAFETY GLASSES AND GLOVES WHENEVER USING YOUR CHIPPER-SHREDDER. The chipper-shredder methods of operation. & t Leaves and small twigs can be raked into the hopper assembly when the hopper assembly is lowered to the ground. See figure 6. Small branches up to 1/2" diameter (recommended) or 1" diameter (maximum) can also be fed into the hopper assembly in this position. See figure 7. is designed for three different • Leaves and small branches up to 1/2" diameter (recommended) or 1" diameter (maximum) can be fed into the hopper assembly when it is in the raised position. See figure 5. If it becomes necessary to push material into the chipper-shredder, use a small diameter stick--NOT YOUR HANDS. The stick should be small enough that it will be ground up if gets into the impeller assembly. WARNING: FIGURE 5. DO NOT PUT FIGURE 6. MATERIAL LARGER THAN 1/2" IN DIAMETER (RECOMMENDED) or 1" DIAMETER (MAXIMUM) INTO THE HOPPER ASSEMBLY. MATERIAL UP TO A MAXIMUM OF 3" IN DIAMETER MATERIAL MAY BE FED INTO THE CHIPPER CHUTE. DO NOT ATTEMPT TO SHRED OR CHIP ANY MATERIAL LARGER THAN 3" IN DIAMETER. PERSONAL INJURY OR DAMAGE TO THE MACHINE COULD RESULT. o arger Than 112" Diameter (Recommended) Or 1" Diameter (Maximum) FIGURE 7. • To lower the hopper assembly to the ground, use one hand to grasp the top of the hopper assembly. Push down on the release handle, and pivot the hopper assembly to the right. See figure 8. Hopper Release Handle FIGURE 8. • Bulky materiar, such as stalks or heavy branches, up to 3" in diameter, should be fed into the chipper chute. See figure 9. WARNING: MAKE CERTAIN THE CHIPPER IN NOT CHUTE USE. DOOR IS CLOSED GASAND OIL FILL-UP OIL Only use high quality detergent oil rated with APt service crassification SG. 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 multiviscosity 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. • Fill engine with oil as follows. Remove oil fill dipstick. See figure 10. With chipper-shredder level, use a funnel to fill engine with oil to FULL mark on dipstick. Capacity is approximately 1-1/4 pints. Be careful not to overfill. Tilt chipper-shredder 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. WHEN 3" Maximum Diameter • , i f, Oil Dipstick Drain per Chute i FIGURE 10. GAS FIGURE 9. 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 Adjustments section. For best performance, it is important to keep the shredding blade and 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 shredding blade and/or chipper blades are dull and need to be sharpened or replaced. Refer to Service and Adjustments section. • Remove fuel cap and fill fuel tank with about 1-7/8 quarts 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 gasoline that may be stale from long periods of storage in the container. Replace fuel cap. 1/2 INCH OF TOP OF FUEL TANK TO WARNING: DO NOTAND FILLTO CLOSER PREVENT SPILLS ALLOW THAN FOR FUEL EXPANSION. IF GASOLINE IS ACClDENTLY SPILLED, MOVE CHIPPERSHREDDER 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-shredder. If the unit runs out of gas as it is shredding or chipping, it may be necessary to unclog the unit before it can be restarted. Refer to "Removing the Flail Screen" in SERVICE AND ADJUSTMENT section. WARNING: EXPERIENCE INDICATES THAT ALCOHOL 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 CLEANER PRODUCTS IN THE FUEL TANK OR PERMANENT DAMAGE MAY OCCUR. Spark Plug, Wire and Starter Handle Throttle Control i FIGURE 12. • Move choke lever to CHOKE position (See figure 13.). • Grasp starter handle (see figure 12) 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 mechanism falling 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. Fuel Tank FIGURE 11. TO STARTENGINE _ THAN THE OPERATOR IS STANDING WARNING: BE SURE NO ONE OTHER NEAR THE CHIPPER-SHREDDER WHILE STARTING OR OPERATING. DO NOT OPERATE THIS CHIPPER-SHREDDER UNLESS THE CHUTE DEFLECTOR HAS BEEN PROPERLY INSTALLED AND iS SECURED WITH THE HAND KNOBS. • Attach spark plug wire and rubber boot to spark plug if necessary. See figure 11. • Place the throttle control lever in FAST position. See figure 12. • Repeat preceding two instructions until engine fires. When engine starts, move choke lever on engine halfway between CHOKE and RUN. NOTE: If engine does not fire after three attempts, move choke lever halfway between CHOKE and RUN position and try again. See figure 13. • Move throttle control to IDLE position for a few minutes warm-up. Move choke lever to RUN 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. CHOKE_';_ Position ,,::'" •.;:;" FIGURE 13. Choke Lever J OFF • TO STOPENGINE • Move throttle control lever to OFF position. See figure 13. Disconnect spark plug wire and move away from spark plug to prevent accidental starting while equipment is unattended. ilUll =1 CUSTOMER iii iiii MAINTENANCE i i i RESPONSIBILITIES iiiiiiiiii SCHEDULE f_o_//_.3 AS YOU COMPLETE /oe'_'-/_'//- REGULAR SERVICE /@_//"_"+'_'/'_/ _ "/^_/-°'_-/-_'_/ "_/ "-/_<_'/ .... SERVICE DATES I-- o 0 Oil Pivot Points t' Clean Shredder "J -_ i.J Check Engine Oil _' Change Engine Oil u.I 4 _ ._i 2: Service Air Cleaner Z uJ Clean Engine Cylinder q Spark Plug _" Muffler _' ,t CHECK GENERALRECOMMENDATIONS ENGINE ENGINE OIL Only use high quality detergent oil rated with API service classification SG. Select the oil's viscosity grade according to your expected operating temperature. Colder -= 32°F _ Warmer AND DISCONNECT THE SPARK PLUG WARNING: ALWAYSPERFORMING STOP THE ENGINE WIRE BEFORE ANY MAINTENANCE OR ADJUSTMENTS. • Periodically are tight. check all fasteners and be sure they 5W30 SAE 30 • Follow the Maintenance Schedule above. 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. CHIPPER-SHREDDER LUBRICATION Lubricate the pivot points on the release handle, hopper assembly, chute deflector and chipper chute once a season using a light oil. Your four-cycle engine will normally consume some oil--therefore, check engine oil level regularly approximately 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. CLEANING • The chipper-shredder may be cleaned by running water from a hose through the hopper assembly and chipper chute with the engine running. Allow the chipper-shredder to dry thoroughly. • Wash the bag periodically with water. Allow to dry thoroughly in the shade. Do not use heat. 10 To DrainOil: CLEAN ENGINE • 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 FILLUP section. 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 contaminate the fuel system. Yearly or every 25 hours, whichever occurs first, remove the blower housing and clean the areas shown in figure 15 to avoid overspeeding, overheating and engine damage. Clean more often if necessary. • Replace dipstick. 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 performance. Never run your engine without pletely assembled. air cleaner FLER AREA TO REMOVE ALL GRASS, WARNING: PERIODICALLY DEBRIS, CLEAN MUFDIRT AND COMBUSTIBLE com- To Service Air Cleaner: Service pre-cleaner after every 25 hours of use, or at least once a season. Service cartridge every 100 hours of use, or at least once a season. Service pre-cteaner and cartridge more often under dusty conditions. • Loosen (do not remove) the two screws which secure the cover. • Turn the cover counterclockwise and remove it from the base. • Carefully remove pre-cleaner and cartridge. • Clean the inside of base and cover thoroughly. • Clean cartridge by tapping gently on a flat surface. If very dirty, replace cartridge and pre-cleaner or clean as follows: Levers and Linkage FIGURE 15. 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 16. Spark plug replacement is recommended at the start of each season. Refer to engine parts list for correct spark plug type. Wash in a low or non-sudsing detergent and warm water solution. CAUTION: Do not use petroleum solvents such as kerosene to clean cartridge. Rinse thoroughly with flowing water from inside out until water is clear. NOTE: Do not sandblast spark plug. Spark plug should be cleaned by scraping or wire brushing and washing with a commercial solvent. Allow cartridge to stand and air dry thoroughly before using. DO NOT OIL CARTRIDGE OR PRECLEANER. DO NOT USE PRESSURIZED AIR TO CLEAN OR DRY CARTRIDGE. • Reassemble cover to engine. screws securely. Tighten Air Intake .030" Feeler Gauge the two Base Filter Pre-Cleaner Spark Plug FIGURE 16. MUFFLER Cover Screws (2) Do not operate the chipper-shredder without a muffler or tamper with the exhaust system. Damaged mufflers or spark attesters 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. Cover FIGURE 14. 11 i ii i i i iii ill i ii i STORAGE Prepare your chipper-shredder for storage at the end of the season or if the unit wilt not be used for 30 days or more. • Drain the fuel tank. • Start the engine and let it run until the fuel lines and carburetor are empty. • Never use engine or carburetor c}eaner products in the fuel tank or permanent damage may occur. • Use fresh fuel next season. WITH FUEL IN THE FUEL TANK INSIDE WARNING: STORE MACHINE OF BUILDINGNEVER 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: Fuel stabilizer is an acceptable alternative in minimizing the formation of fuel gum deposits during storage. Add stabilizer to gasoline in fuel tank or storage container. Always follow the mix ratio found on stabilizer container. Run engine at least f0 minutes after adding stabilizer to allow the stabilizer to reach the carburetor. Do not drain the gas tank and carburetor if using fuel stabilizer. • Drain all the oil from the crankcase (this should be done after the engine has been operated and is stiff warm) and refill the crankcase with fresh oil NOTE: A yearly check-up by your local Sears Service Center is a good way to make certain your chippershredder will provide maximum performance for the next season. CHIPPER-SHREDDER • Clean the chipper-shredder • 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 tablespoon) of engine oil into cylinder and crank slowly to distribute oil. Replace spark plug. thoroughly. • Wipe unit with an oiled rag to prevent rust (use a light oil or silicone). ENGINE OTHER 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 SEPARATION AND FORMATION OF ACIDS DURING STORAGE. ACIDIC GAS CAN DAMAGE THE FUEL SYSTEM OF AN ENGINE WHILE IN STORAGE. • De not store gasoline from one season to another. • 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 _ight oi! or silicone. ii i • SERVICE & ADJUSTMENT i & i iiii IIIII IIII II WARNING: ALWAYS STOP ENGINE AND DISCONNECT SPARK PLUG WIRE AND MOVE IT AWAY FROM SPARK PLUG BEFORE PERFORMING ANY ADJUSTMENTS OR REPAIRS. • Loosen the two hand knobs on each side of the chute deflector. Lift the chute deflector up, and tie it out of the way. • Remove two hairpin clips from the clevis pins which extend through the housing. Remove the clevis pins. Lift the flail screen from inside the housing. See figure 17. REMOVINGTHE FLAIL SCREEN If the discharge area becomes clogged, remove the flail screen and clean area as follows. • Clean the screen by scraping water. Reinstall the screen. • Stop the engine, make certain the chipper-shredder has come to a complete stop and disconnect spark plug wire from the spark plug before unclogging the chute. or washing with NOTE: Be certain to reassemble the flail screen with the curved side down as shown in figure 17. 12 Chute Replace or sharpen blades, Ff sharpening, make certain to remove an equal amount from each blade. Reassemble in reverse order. Hairpin Clips, Clevis Pins Make certain blades are reassembled with the sharp edge facing the direction shown in figure 18 (sharp edge is assembled toward the slotted opening in the impeller assembly). SHREDDING _- Hex Nuts Washers BLADE The shredding blade may be removed for sharpening or replacement as follows. Flail Screen • Disconnect spark plug wire and move it away from spark ptug. • Lower the hopper assembly. Block up the housing. See figure 19. Chipper Chute • Remove the six hex lock nuts and lock washers from the housing weld bolts using a 1/2" wrench. Separate the chipper-shredder into two halves. Hand Knobs FIGURE 17. SHARPENINGOR REPLACINGTHE BLADES • Remove the back-up plate. CHIPPER BLADES NOTE: When reassembling, make certain the opening on the back-up plate is toward the bottom of the unit. The back-up plate may be reversed to provide a new cutting edge. • Disconnect spark plug wire and move it away from spark plug. • Remove the flail screen as instructed section. in previous • Remove the chipper chute by removing three hex nuts and washers. A 1/2" wrench is required. See figure 17. Allen Screws NOTE: When reassembling, the cupped washer goes on the bottom of the chipper chute with the cupped side against the chute. Pi • Rotate the impeller assembly by hand until you locate one of the chipper blades in the chipper chute opening. 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). See figure 18. • Remove the other blade in the same manner. Torque Wrench FIGURE 19. O Loosen the two hand knobs and cupped washers which secure the chute deflector, and raise the chute deflector. o Insert a 1/2" or 3/4" diameter pipe through the flail screen into the impeller to keep it from turning, or remove the flail screen and insert a piece of wood (2 x 4) into the chute opening. Remove the two outside screws on the blade, using a 3/16" allen wrench and a 112"wrench. Remove the blade by removing the center bolt, lock washer and flat washer. FIGURE 18. 13 CARBURETORADJUSTMENT NOTE: Use caution when removing the blade to avoid contacting the weld bolts on the housing. WARNING: • When sharpening the blade, follow the original angle of gdnd as a guide. It is extremely important that each cutting edge receives an equal amount of grinding to prevent an unbalanced blade. An unbalanced blade will cause excessive vibration when ,_ rotating at high speeds and may cause damage to the unit. IF ANY ADJUSTMENTS ARE MADE TO ENGINE THE ENGINE IS THE RUNNING (E.G.WHILE CARBURETOR), KEEP CLEAR OF ALL MOVING PARTS. BE CAREFUL OF HEATED SURFACES 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 shredder to your nearest SEARS Service Center. • The blade can be tested for balance by balancing it on a round shaft screwdriver or nail. Remove metal from the heavy side until it is balanced evenly. See figure 20. ENGINESPEED 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-shredder to the nearest SEARS Service Center for repair and adjustment. / o,!o2 FIGURE 20. • When reassembling the blade, tighten to between 550 and 650 inch pounds, or lacking torque wrench, tighten securely. FLAILS The flails, located inside the housing, may be reversed when they become dull. _t is suggested that this procedure be performed by your nearest Sears Service Department. 14 i TROUBLE SHOOTING PROBLEM POSSIBLE CAUSE(S) CORRECTIVE Engine • Fuel tank empty, or stale fuel. • Spark plug wire disconnected. • Faulty spark plug. • Fill tank with clean, fresh fuel. • Connect wire to spark plug. • Clean, adjust gap or replace. • • • Spar_
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