Craftsman 917377421 User Manual ROTARY MOWER Manuals And Guides 98120009
CRAFTSMAN Walk Behind Lawnmower, Gas Manual 98120009 CRAFTSMAN Walk Behind Lawnmower, Gas Owner's Manual, CRAFTSMAN Walk Behind Lawnmower, Gas installation guides
User Manual: Craftsman 917377421 917377421 CRAFTSMAN ROTARY MOWER - Manuals and Guides View the owners manual for your CRAFTSMAN ROTARY MOWER #917377421. Home:Lawn & Garden Parts:Craftsman Parts:Craftsman ROTARY MOWER Manual
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Owner's Manual rRRFTSMRN" 6.5 HORSEPOWER 22" EZ MULCH POWER PROPELLED ROTARY LAWN MOWER Model No. 917.377421 • • • • • • Safety Assembly Operation Maintenance Espa_ol Repair Parts CAUTION: Read and follow all Safety Rules and Instructions before operating this equipment Sears, Roebuck and Co., Hoffman Estates, IL 60179 Warranty Safety Rules Assembly Operation Maintenance Schedule Maintenance LIMITED TWO YEAR WARRANTY 2 2 4 6 10 10 Product Specifications Service and Adjustments Storage Troubleshooting Repair Parts Parts Ordering ON CRAFTSMAN POWER 11 14 15 16 33 Back Cover MOWER For two years from date of purchase, when this Craftsman Lawn Mower is maintained, lubricated, and tuned up according to the operating and maintenance instructions in the owner's manual, Sears will repair free of charge any defect in material or workmanship. If this Craftsman Lawn Mower is used for commercial or rental purposes, this warranty applies for only 90 days from the date of purchase. This Warranty does not cover: • Expendable items which become worn during normal use, such as rotary mower blades, blade adapters, belts, air cleaners and spark plug. • Repairs necessary because of operator abuse or negligence, including bent crankshafts and the failure to maintain the equipment according to the instructions contained in the owner's manual. Warranty service is available by retuming the Craftsman power mower to the nearest Sears Service Center/Depadment 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, ROEBUCKAND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179 TRAINING: • Read this operator's manual carefully. Become familiar with the controls and know how to operate your mower properly. Leam how to quicklystop mower. • Do not allow children to use your mower. Never allow adults to use mower without proper instructions. ::_ • Keep the area of operation clear of all persons, especially small children and pets. • Use mower only as the manufacturer intended and as described in this manual. • Do not operate mower if it has been dropped or damaged in any manner. Always have damage repaired before using your mower. • Do not use accessory attachments that are not recommended by the manufacturer. Use of such attachments may be hazardous. • The blade tums when the engine is running. PREPARATION: • Always thoroughly check the area to be mowed and clear it of all stones, sticks, wires, bones, and other foreign objects. These objects will be thrown by the blade and can cause severe injury. • Always wear safety glasses or eye shields when starting and while using your mower. • Dress properly. Do not operate mower when barefoot or wearing open sandals. Wear only solid shoes with good traction when mowing. 2 • Check fuel tank before starting engine. Do not fill gas tank indoors, when the engine is running or when the engine is hot. Allow the engine to cool for several minutes before filling the gas tank. Clean off any spilled gasoline before starting the engine. • Always make wheel height adjustments before starting your mower. Never attempt to do this while the engine is running. • Mow only in daylight or good artificial light. fume s are dangerous. • Never cut grass by pulling the mower towards you. Mow across the face of slopes, never up and down or you might lose your footing. Do not mow excessively steep slopes. Use caution when operatingthe mower on uneven terrain or when changing directions -maintain good footing. • Never operate your mower without proper guards, plates, grass catcher or other safety devices in place. OPERATION: • Check the blade and the engine mounting bolts often to be sure they are tightened properly. • Check all bolts, nuts and screws at frequent intervals for proper tightness to be sure mower is in safe working condition. • Keep all safety devices in place and working. • To reduce firs hazard, keep the engine free of grass, leaves or excessive grease and oil. • Check grass catcher often for deterioration and wear and replace worn bags. Use only replacement bags that are recommended by and comply with specifications of the manufacturer of your mower. • Always keep a sharp blade on your mower. • Allow engine to cool before storing in any enclosure. • Never store mower with fuel in the tank • Keep your eyes and mind on your mower and the area being cut. Do not let other interests distract you. • Do not mow wet or slippery grass. Never run while operating your mower. Always be sure of your footing -- keep a firm hold on the handles and walk. • Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times. • Always stop the engine whenever you leave or are not using your mower, or before crossing driveways, walks, roads, and any gravel_covered areas. • Never direct discharge of material toward bystanders nor allow anyone near the mower while you are operating it. • Before cleaning, inspecting, or repairing your mower, stop the engine and make absolutely sure the blade and all moving parts have stopped. Then disconnect the spark plug wire and keep it away from the spark plug to prevent accidental starting. • Do not continue to run your mower if you hit a foreign object. Follow the procedure outlined above, then repair any damage before restarting and operating you mower. MAINTENANCE AND STORAGE: inside a building where fumes may reach an open flame or an ignition source such as a hot water heater, space heater, clothes dryer, etc. CAUTION: Always disconnect spark plug wire and place wire where it cannot contact spark plug in order to prevent accidental starting when setting up, transporting, adjusting or making repairs. • Do not change the governor settings or overspeed the engine. Engine damage or personal injury may result. • Do not operate your mower if it vibrates abnormally. Excessive vibration is an indication of damage; stop the engine, safely check for the cause of vibration and repair as required. • Do not run the engine indoors. Exhaust WARNING The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. 3 These accessorias were available when this lawn mower was produced. They are also available at most Sears retail outlets and service centers. Most Sears stores can also order repair parts for you, when you provide the model number of your lawn mower. Some of these accessories may not apply to your lawn mower. LAWN MOWER PERFORMANCE V CLIPPING DEFLECTOR FOR REAR DISCHARGE LAWN MOWERS MULCHER GRASS CATCHERS FOR REAR DISCHARGE LAWN MOWERS KITS STABILIZER FOR SIDE DISCHARGE GRASS LAWN CATCHERS MOWERS GAS CANS LAWN MOWER MAINTENANCE MUFFLERS Read these instructions and this manual in its entirety before you attempt to assemble or operate your new lawn mower. Your new lawn mower has boon assembled at • Remove all packing materials except padding between upper and lower handle and padding holding operator presence control bar to upper handle. • Roll lawn mower out of carton and the factory with the exception of those pads left unassembled for shipping purposes. All parts such as nuts, washers, bolts, etc., neceSSary to complete the assembly have been placed in the pads bag. To ensure safe and proper operation of your lawn mower, all padsand hardware you assemble must be tightened securely. Use the correct tools as necessary to ensure proper tightness. TO REMOVE CARTON LAWN MOWER check carton thoroughly for additional loose pads. HOW TO SET UP YOUR LAWN MOWER TO UNFOLD HANDLE IMPORTANT: Unfold handles carefully so as not to pinch or damage control cables. • Raise handles until lower handle sec- FROM tion locks into place in mowing position. • Remove protective padding, raise upper handle section into place on lower handles and tighten both handle knobs. • Remove loose parts included with mower. • Cut down two end comers of carton and lay end panel down flat. 4 • Removehandlepaddingholdingoperator presencecontrolbar to upper handle. • Your lawn mower handle can be adjusted for your mowing comfort. Refer to "Adjust Handle" in the Service and Adjustment section of this manual. Operatorpresence control beJ Upper handle Lift up Lower handle ( 5 Mowing position KNOW YOUR LAWN MOWER READ THIS OWNERS MANUAl_AND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER. Comparethe _ wi_ yourlawnmowertofarniliadzeyourselfw#hthe locationof variouscontrolsand adj_ Save _is manualfor future reference. These symbols may appear on your lawn mower or in literature supplied with the product. Learn and understand their meaning. CAUTION OR WARNING ENGINE ON ENGINE OFF FAST SLOW Engine zone control cable CHOKE FUEL OIL DANGER, KEEP HANDS AND FEET AWAY Operator presence control bar _ Drive control lever Starter handle Handle knob Engine oil cap with dipstick Gasoline filler cap Primer Drive cover Deflector Muicher door Lawn mower housing Wheel adjuster (on each wheel) MEETS CPSC SAFETY REQUIREMENTS Sears rotary walk-behind power lawn mowers conform to the safety standards of the American National Standards Institute and the U.S. Consumer Product Safety Commission. The blade turns when the engine is running. Starter Handle - used for starting the engine. Drive Control Lever-- used to engage power-propelled forward motion of lawn mower. Mulcher Door - allows conversion to discharge or bagging operation. Operator Presence Control Bar- must be held down to the handle to start the engine. Release to stop the engine. Primer - pumps additional fuel from the carburetor to the cylinder for usa when starting a cold engine, 6 DRIVE CONTROL The operationof anylawnmowercan resultin foreignobjectsthrownintothe eyes, which can result in severe eye damage. Always wear safety glasses or eye shields while operating your lawn mower or performing any adjustments or repairs. We recommend a wide vision safety mask over spectacles or standard safety glasses. HOW TO USE ENGINE YOUR SPEED LAWN MOWER CONTROL The engine speed was set at the factory for optimum performance. Speed is not adjustable. ENGINE ZONE • Self-propelling is controlled by holding the operator presence control bar down to the handle and pushing the drive control lever forward until it clicks; then release the lever. • Forward motion will stop when the operator presence control bar is released. To stop forward motion without stopping engine, release the operator presence control bar slightly until the drive control disengages. Hold operator presence control bar down to handle to continue mowing without self-propelling. • To keep drive control engaged when tuming comers, push down on handle and lift front wheels off ground while tuming lawn mower. CONTROL CAUTION: Federal regulations require an engine control to be installed on this lawn mower in order to minimize the risk of blade contact injury. Do not under any cimumstances attempt to defeat the function of the operator control. The blade turns when the engine is running. • Your lawn mower is equipped with an operator presence control bar which requires the operator to be positioned behind the lawn mower handle to start Operator presence control bar To engage _ drive control and operate the lawn mower. TO ADJUST CU'I'rlNG HEIGHT • Raise wheels for low cut and lower shipped ready for mulching operation. To convert to discharging operation, you must install the discharge deflector attachment included with your mower. TO INSTALL DISCHARGING DEFLECTOR • To change cutting height, squeeze adjuster lever toward wheel. Move wheel up or down to suit your requirements. Be sure all wheels are in the same setting. NOTE: Adjuster is properly positioned when plate tab inserts into hole in lever. Also, 9-pesition adjusters (if so equipped) allow lever to be positioned between the plate tabs. Plate Raise Wheels for Low Cut _ Tab _ Drive control disengaged NOTE: Your lawn mower has been wheels for high cut. • Adjust cutting height to suit your requirements. Medium position is best for most lawns. Lower Wheels for High Cut _'_, Drive control • Lift door upward on it's hinge until the deflector frame can be hooked over the door mounting bracket as shown. • Release the door to rest against deflector frame. • To return to mulching operation, reverse the above steps and be sure door is in closed position. CAUTION: Do not operate your lawn mower without mulcher door in locked _ position, discharge deflector in place, or approved grass catcher in place. Lever Deflector _ar Door _'_/-- 7 Mounting bracket BEFORESTARTINGENGINE OIL Yourlawnmower is shippedwithoutoil in the engine. TO START ENGINE • To start a cold engine, push primer five (5) times before trying to start. Use a firm push. This step is not usually necessary when starting an engine which has already run for a few minutes. • Hold operator presence control bar down to the handle and pull starter handle quickly. Do not allow starter rope to snap back. • Be sure mower is level and area around oil fill is clean. • Remove engine oil cap w/dipstick and fill to the full line on the dipstick. • Use 20 ozs. of oil. For type and grade of oil to use, see "ENGINE" in Maintenance section of this manual. • To stop engine, release operator presence control bar. • Pour oil slowly. Do not over fill • Check oil level before each use. Add oil if NOTE: In cooler weather it may be necessary to repeat priming steps. In warmer weather over priming may cause flooding and engine will not starL If you do flood engine, wait a few minutes before attempting to start and do not repeat priming steps. MOWING TIPS needed. Fill to full line on dipstick. • To read proper level, tighten engine oil cap each time. • Reinstall engine oil cap and tighten. • Change the oil after every 25 hours of operation or each season. You may need to change the oil more often under dusty, dirty conditions. GAS • Under certain conditions, such as very tail grass, it may be necessary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of grass clippings.it may also be necessary to reduce ground speed and/or run the lawn mower over the area a second time. • Fill fuel tank. Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane. Do not mix oil with gasoline. Purchase fuel in quantities that can be used within 30 days to assure fuel freshness. 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 before storage of 30 days or longer. Drain the fuel tank, start the engine and let it run until fuel lines and carburetor are • For extremely heavy cutting, reduce the width of cut by overlapping previously cut path and mow slowly. • For better grass bagging and most cutting conditions, the engine speed should be set in the fast position. • For side discharge lawn mowers, cutting in a counter-clockwise direction, starting at the outside of the area to be cut, spreads grass clippings more evenly and puts less load on the engine. To keep clippings off of walkways, flower beds, etc., make the first cuts in a clockwise direction. empty. Use fresh fuel next season. See Storage Instructions for additional information. Never use engine or carburetor cleaner products in fuel tank or permanent damage may occur. • Pores in cloth grass catchers can become filled with dirt and dust with use and catchers will collect less grass. To prevent this, regularly hose catchers off with water and let dry before using. Keep top of engine around starter clear and clean of grass clippings and chaff. This will help engine air flow and extend engine life. Gasoline Engine oil cap w/dipstick filler cap 8 MULCHINGMOWINGTIPS IMPORTANT:Forbestperformance,keep mowerhousingfree of built-upgrassand trash. Clean UNDERSIDE • For best results, adjust the lawn mower cutting height so that the lawn mower cuts off only the top one-third of the grass blades. If the lawn is overgrown it will be necessary to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving clumps of mulched grass. For extremely heavy mulching, reduce your width of cut, mow slowly and raise the rear of the lawn mower one wheel adjuster setting higher than the front. • Certain types of grass and grass conditions may require that an area be mulched a second time to completely hide the clippings. When doing a second cut, mow across or perpendicular to the first cut path. • Change your cutting pattern from week to week. Mow north to south one week then OF MOWER HOUSING after each use. See "Cleaning" in Maintenance section of this manual. • The special mulching blade will recut the grass clippings many times and reduce them in size so that as they fall onto the lawn they will disperse into the grass and not be noticed. Also, the mulched grass will biodegrade quickly to provide nutrients for the lawn. Always mulch with your highest engine (blade) speed as this will provide the best recutting action of the blades. • Avoid cutting your lawn when it is wet. Wet grass tends to form clumps and interferes with the mulching action. The best time to mow your lawn is the early aftemoon. At this time the grass has dried and the newly cut area will not be exposed to the direct sun. change to east to west the next week, This will help prevent matting and graining of the lawn. 9 AS YOU COMPLETE ._'_._O_O_ Check for Loose Fasteners Clean/Inspect Grass Catcher _.x'_ _:_/ _€_:_p¢,,1 _ _O_ t,#* C E DATES If M clean Lawn Mower (p_,er-Pr,_lea E Movers) _*' (Power-PropelledMowers) t/ Ched_eplsce Blade Lubrication Chart Clean Bane_/Rechwrge _= I_' i/ v', IEk,_cs=. Mo._ E N Check Engine Oil Level Change Er_line Oi_ S I Clean Air Filter Inspect Muffler Clean or Replace Spark Rug N t#/ Ill.2 If / 2 If E Replace AirFilterPaperCartddge 1. Change more c4terr when _emting 2. Selvlce moei onen when o1_ 3. Replace blldee I/2 utld_ a heavy load or in high ambient temperer uru. In dllty or duMy condilk)nlk mole oltlm when mowing _nlandy loll LUBRICATION 4. Charge 48 houm at end ot slmson. GENERAL RECOMMENDATIONS (_) The warranty on this lawn mower does not cover items that have been subjected to operator abuse or negligence. To receive full value from the warranty, operator must maintain mower as instructed in this manual. Some adjustments will need to be made periodically to properly maintain your unit. All adjustments in the Service and Adjustments section of this manual should be checked at least once each season. • Once a year, replace the spark plug, replace air filter element and check blade for wear. A new spark plug and clean/new air filter element assures proper air-fuel mixture and helps your engine run better and last longer. • Fellow the maintenance schedule in this manual. BEFORE EACH USE Wheel adjusters CHART (_) Brake spdng bracket ® Engine oil Handle bracket mounting pin (_ SPRAY LUBRICANT ® SAE 30 MOTOR OIL. REFER TO ENGINE - MAINTENANCE SECTION • Check engine oil level. • Check for loose fasteners. LUBRICATION IMPORTANT: Do not oil or grease plastic wheel bearings. Viscous lubricants will attract dust and dirt that will shorten the life of Keep unitwell lubricated (See "LUBRICATION CHART"). the self lubdcating beatings. If you feel they must be lubricated, use only a dry, powdered graphite type lubricant sparingly. 10 )RODUCT SPECIFICATIONS MODEL NUMBER SERIAL NUMBER 917.377421 DATE OF PURCHASE HORSEPOWER: 6.5 DISPLACEMENT: 12.56 CU. IN. GASOLINE 1.25 QUARTS CAPACITY/TYPE: UNLEADED OILTYPE (API-SF/SG/SH): SAE 30 (ABOVE 32°F) SAE 5W-30 OIL CAPACITY: SPARK PLUG(GAP: (BELOW 32°F) RJ19LM OR J19LM 20 OZS. .030 =) CHAMPION VALVE CLEARANCE: SOLID REGULAR INTAKE: .004 = - .008" EXHAUS'E .004" - .008" STATE IGNITION AIR GAP: .0125 IN. BLADE BOLT TORQUE: 35-40 FT. LBS. The model and serial numbers will be found on a decal attached to the rear of the lawn mower housing.Record both serial number and date of purchase in space provided above. LAWN MOWER • Remove blade and attaching hardware (bolt, lock washer and hardened washer). NOTE: Remove the blade adapter and check the key inside hub of blade adapter. The key must be in good condition to work properly. Replace adapter if damaged. Always observe safety rules when performing any maintenance. TIRES • Keep tires free of gasoline, oil, or insect control chemicals which can harm rubber. • Avoid stumps, stones, deep ruts, sharp objects and other hazards that may cause tire damage. TO REPLACE • Position the blade adapter on the engine crankshaft. Be sure key in adapter and crankshaft keyway are aligned. • Position blade on the blade adapter aligning the two (2) holes in the blade with the raised lugs on the adapter. • Be sure the trailing edge of blade (opposite sharp edge) is up toward the engine. • Install the blade bolt with the lock washer and hardened washer into blade BLADE CARE For best-results, mower blade must be kept sharp. Replace bent or damaged blades. TO REMOVE BLADE BLADE • Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug. • Turn lawn mower on its side. Make sure air filter and carburetor are up. • Use a wood block between blade and adapter and crankshaft. • Use block of wood between blade and mower housing to prevent blade from turning when removing blade bolt. • Protect your hands with gloves and/or wrap blade with heavy cloth. • Remove blade bolt by turning counterclockwise. lawn mower housing and tighten the blade bolt, tuming clockwise. • The recommended tightening torque is 35-40 ft. Ibs. 11 IMPORTANT:Bladeboltis grade8 heat treated. TO SHARPENBLADE NOTE: Wedo not recommendsharpeningblade- but if you do, be sure the blade is balanced. Careshouldbe taken to keepthe blade balanced.An unbalancedbladewill cause eventualdamageto lawn moweror engine. • The bladecan be sharpenedwith a file or on a grinding wheel. Do not attempt to sharpen while on the mower. • To check blade balance, drive a nail into a beam or wall. Leave about one inch of the straight nail exposed. Place center hole of blade over the head of the nail. If blade is balanced, it should remain in a horizontal position. If either end of the blade moves downward, sharpen the heavy end until the blade is balanced. Blade Crank shaft adaptor _ keyway If necessary to clean the drive wheels, check both front wheels. • Remove hubcaps, hairpin cotters and washers. • Remove wheels from wheel adjusters. • Remove any trash or grass cuttings from inside the dust cover, pinion and/or drive wheel gear teeth. • Put wheels back in place. • If after cleaning, the drive wheels do not turn freely, contact your nearest authorized service center. GEAR CASE • To keep your drive system working properiy, the gear case and area around the drive should be kept clean and free of trash build--up. Clean under the drive cover twice a season. • The gear case is filled with lubricant to the proper level at the factory. The only time the lubricant needs attention is if service has been performed on the gear case. • If lubricant is required, use only Texaco Starplex Premium 1 Grease, Part No. 750355. Do not substitute. ENGINE LUBRICATION Use only high quality detergent oil rated with API service classification SF, SH or SG. Select the oil's SAE viscosity grade according to your expected operating temperature. Crank Bolt Lockwasher Hardened washer GRASS Blade SAE VISCO61TY GP.AOES Trailing adaptor edge CATCHER =C _0_ .10_ O" 20" 30" TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE (If purchased as an accessory) • The grass catcher may be hosed with water_ but must be dry when used. • Check your grass catcher often for damage or deterioration. Through normal use it will wear. If catcher needs replacing, replace only with a manufacturer approved replacement catcher. Give the lawn mower model number when order- 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 engine oil level more frequently to avoid possible engine damage from running low on oil. ing. DRIVE WHEELS Change the oil after every 25 hours of operation or at least once a year if the lawn mower is not used for 25 hours in one year. Check front drive wheels each time before you mow to be sure they move freely. The wheels not tuming freely means trash, grass cuttings, etc-. are in the drive wheel area and must be cleaned to free drive wheels. Check the crankcase oil level before starting the engine and after each five (5) hours of continuous use. Tighten oil plug securely each time you check the oil level. 12 TO CHANGE ENGINE OIL NOTE: Before tipping lawn mower to drain oil, drain fuel tank by running engine until fuel tank is empty. • Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug. • Remove engine oil cap; lay aside on a clean surface. • Tip lawn mower on its side as shown and drain oil into a suitable container. Rock lawn mower back and forth to remove any oil trapped inside of engine. • Wipe off any spilled oil on lawn mower and on side of engine. • Fill engine with oil. Fill only to the =FULL" line on the dipstick. DO NOT OVER FILL. • Replace engine oil cap. • Reconnect spark plug wire to spark plug. Containel MUFFLER Inspect and replace corroded muffler as it could create a fire hazard and/or damage. SPARK PLUG Change your spark plug each year to make your engine start easier and run better. Set spark plug gap at .030 inch. CLEANING IMPORTANT: For bast performance, keep mower housing free o! built---up grass and trash. Clean underside of mower housing after each use. CAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with the spark plug. •Tum lawn mower on its side. Make sure air filter and carburetor are up. Clean the underside of your lawn mower by scraping to remove build_up of grass and trash. • Clean engine often to keep trash from accumulating. A clogged engine runs hotter and shortens engine life. • Keep finished surfaces and wheels free of all gasoline, oil, etc. • We DO NOT recommend using a garden hose to clean lawn mower unless the electrical system, muffler, air filter and carburetor are covered to keep water out. Water in engine can result in shortened engine life. AIR FILTER Your engine will not run properly and may be damaged by using a dirty air filter. Replace the air filter every year, more often if you mow in very dusty, dirty conditions. CLEAN UNDER DRIVE COVER Clean under drive cover at least twice a TO CLEAN AIR FILTER season. Scrape underside of cover with putty knife or similar tool to remove any build--up of trash or grass on underside of drive cover. • Remove the air filter by turning clockwise to the stop and pull away from collar. • Remove filter from inside of cover. • Clean the inside of the cover and the collar to remove any dirt accumulation. • Insert new filter into cover. • Put air filter cover and filter into collar aligning the tab with the slot. • Push in on cover and rum counter clock- wise to tighten. Clip "rum clockwise to remove Air flltel Air filter covbr clockwise to t_ghten 13 CAUTION: Before performing any service or adjustments: TO ADJUST • Release control bar and stop engine. • Make sure the blade and all moving parts have completely stopped. • Disconnect spark plug wire from spark plug and place where it cannot come in contact with plug. lowered for your mowing comfort. Four (4) positions are available: high, medium high, medium low and low. Handles are shipped mounted in the medium low position. Your lawn mower handle can be raised or • To change from medium low to medium high pesition, the upper and lower handle sections will have to be turned over. LAWN MOWER TO ADJUST CUTTING HEIGHT See "TO ADJUST CUTI'ING HEIGHT" • Remove the cable clipe. • Remove the controls and operator presence control bar from the upper handle. • Remove the starter rope guide from the upper handle. • Remove hairpin cotters. • Disconnect the lower handle from the handle brackets. • Tum the handle over and reassemble the hairpin cotters that have been removed. • Reassemble the starter rope guide. • Reassemble the controls and the operator presence control bar to the upper handle. CAUTION: The operator presence control bar must pivot freely to permit blade brake engagement when control bar is released. Do not over tighten the fasteners holding the controls to the upper handle. in the Operation section of this manual. REAR DEFLECTOR The rear deflector, attached between the rear wheels of your lawn mower, is provided to minimize the possibility that objects will be thrown out the rear of the lawn mower into the operator's mowing position. If the rear deflector becomes damaged, it should be replaced. DISCHARGE GUARD The discharge guard, attached to the discharge opening of your lawnmower, is provided to prevent the possibility of injury resulting from objects being thrown out of the discharge opening into the operator mowing position. If the discharge guard becomes damaged, it should be replaced. TO REMOVE/REPLACE BELT HANDLE Shipping Position Medium Low DRIVE Medium High • Remove drive cover. Remove belt by pushing down on gear case pulley and rolling belt off it. • Turn lawn mower on its side with carburetor and fuel cap up. • Remove blade. • Remove debris shield. • Remove belt from engine pulley on crankshaft. • Install new belt by reversing above steps. • Always use factory approved belt to assure fit and long life. Belt ""'P"usush__ down- High n _::=--_-_H 14 %w ENGINE • To change from medium low to high position only the upper handle section will have to be turned over. CARBURETOR Your carburetor has a non-adjustable fixed main jet for mixture control. If your engine does not operate prepedy due to suspected carburetor problems, take your lawn mower to an authorized service Cen- • To change from medium low to low position, only the lower handle section will have to be turned over. _Co ter for repair or adjustment. ENGINE SPEED Handle Your engine speed has been factory set. Do not attempt to increase engine speed or it may result in personal injury. If you believe that the engine is runningtoo fast or too slow, take your lawn mower to an authorized service center for repair and adjustment. unting Pin tter Immediately prepare your lawn mower for storage at the end of the season or if the unit will not be used for 30 days or more. • When setting up your handle from the storage position, the lower handle will automatically lock into the mowing position. LAWN MOWER When lawn mower is to be stored for a period of time, clean it thoroughly, remove all dirt, grease, leaves, etc. Store in a clean, dry area. • Clean entire lawn mower (See "CLEANING" in the Maintenance section of this manual). • Lubricate as shown in the Maintenance section of this manual. mounting pin Lower Handl, Squeeze to fold J Hairpin Cotter Operator Presence Control Bar • Be sure that all nuts, bolts, screws, and pins are securely fastened. Inspect moving parts for damage, breakage and wear. Replace if necessary. • Touch up all rusted or chipped paint surfaces; sand lightly before painting. HANDLE Upper Fold Backward ig PosilJon Lower Handle Fold Forward For Storage You can fold your lawn mower handle for storage.- Squeeze the bottom ends of the lower handle toward each other until the lower ENGINE FUEL SYSTEM 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 handle clears the handle bracket, then move handle forward. • Loosen upper handle mounting bolts enough to allow upper handle to be folded back. IMPORTANT: When folding the handle for storage or transportation, be sure to fold the handle as shown or you may damage the control cables. 15 while in storage. • Pul stader handle slowly a few trees to dstri:x_ oil. • Drab the fuet tank ° Replace withnewspa_plug. • b-_ the eng_e and let it nJn un_'lthe tuel lines arKI carburetor are ernpty. • Never use angine or cad:xxetor cleaner products in the fuel tank or permanent damage may occur. • Use fresh fuet next seaso_ OTHER • Do not store gasoine from one season to another. • Replace your gasorinecan if your can starts to rust. Rust and/or dirtin your gesoline will NOTE: Fuel _r is an acceptable alternative in minimiz_ the fo_ of fuel gum cause problems. • If posr:Zole,store your unit indoors and cover it to give protec_on from dust and rid. • Cover your unitwi_ a suitable proteclJve coverthat does not retain moisture. Donot deposits duringstorage.Adds_oilizertogasolinein fuel t_k or storage contai_r./_Jways follow the mix ra_o found on stabiT_ercontainer. Run engine at least 10 m_,tes after ad_ stabilizer to allow the stabilizer to reach the carbure- use ples_ allows _ tor. Do not drain the ges tank and cad0uretorif using _ stabilizer. ENGINE OIL your unit to rust. IMPORTANT: Never cover mower wh_ eng_ and exhaust ares_ am _11warm. Dra_ dl (w_h anojne warm) and re,ace w_h clean engine o11.(See "ENGINE" in the Maintenance ssc_on of this manual). CAUTION: Never store the lawn mower with gasoline in the tank inside a b_'ld'mg where fumes may reach an open flame or spa_ Allow the angine to cool before st_ng in any ando- CYUNDER • Remove apark p_g. • Pouroneoume(29rnl)ofoilthrough spark p_gho_i_. TROUBLESHOOTING Plastic cannot breathe which to form and willcause sure. CHART PROBLEM CAUSE CORRECTION Does not start • Dirty air filler. • Out of fuel. • Stale fuel. • Clean/replace • Fill fuel tank. • Water in fuel. • Drain fuel tank and carburetor and refill tank • Spark plug wire is disconnected. • Connect wire to plug. • Bad spark plug. • Loose blade or broken blade • Replace spark plug. • Tighten blade bolt or replaceblade adapter. * Depress control bar to handle. • Replace controlbar. air filler. • Drain tank and refill with fresh clean fuel. with fresh gasoline. - adapter. • Control bar in released position. • Control bar defective. 16 TROUBLESHOOTING PROBLEM Loss of power CHART CAUSE CORRECTION • Rear of lawn mower housing or cutting,bladedragging / in heavy grass. • Cutting too much grass. • Set to =Higher Cut" position. • Dirty air filler. • BuilcLupof grass, leaves, and trash under mower. • Too much oil in engine. • Walking speed too fast. Poor cut - uneven •Wom, bent or loose blade. • Wheel heights uneven. • Buildup of grass, leaves and trash under mower. Excessive vibration • Wom, bent or loose blade. • Bent engine crankshaft. Starter rope hard to pull • Engine flywheel brake is on when control bar is released • Bent engine crankshaft. • Blade adapter broken. • Blade dragging in grass. Grass catcher not filling (if so equipped). Hard to push • Set to "Higher Cut" position. • Clean/replace air filter. • Clean underside of mower housing. • Check oil level. • Cut at slower walking speed. • Replace blade. Tighten blade bolt. • Set all wheels at same height • Clean underside of mower housing. • Replace blade. Tighten blade boll. • Contact an authorized service center, • Depress control bar to upper handle before pullingstarter rope. • Contact an authorized service center. • Replace blade adapter. • Move lawn mower to cut grass or to hard surface to start engine. • Cutting heighttoo low. • Lift on blade worn off. • Catcher not venting air. • Raise cuttingheight. • Replace blade. • Clean grass catcher. • Grass is too high or wheel height is too low. • Rear of lawn mower • Raise cutting height. housing or blade dragging in grass. • Grass catcher too full. • Handle height positionnot rightfor you. 17 • Raise rear of lawn mower housing one (1) setting higher. • Empty grass catcher. • Adjust handle height to suit, ROTARY LAWN MOWER GEAR CASE ASSEMBLY - - MODEL NO. 917.377421 PART NUMBER 702511 1 i KEY NO. PART NO. 17490416 2 3 4 6 7 8 9 10 11 137055X004 137053 57O72 4_373 77881 137051 137074 57079 131484 DESCRIPTION KEY NO. Tapping Screw 1/4-20 x 1-1/4 Engagement Bracket Shifter Seal Gear Case Halves Kit (Includes Key Nos. 4, 5, and 7) _a_ing Worm Shaft Drive Shaft Hardened Washer Clutch Yoke 12 13 14 15 1617 18 19 PART NO. DESCRIPTION 700343 86447 137050 750436X 750369 12000003 850848 81585X004 Bushing Plug Helical Gear Clutch Jaw Grease E-Ring Hi-Pro Key Spring Bracket NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm 35 CRAFTSMAN ROTARY LAWN MOWER - - MODEL NO. 917.377421 72 (,0 crJ 26 62 52 CRAFTSMAN KEY NO. 1 2 3 5 7 8 9 10 11 12 16 17 18 19 22 23 24 25 26 27 28 29 30 31 32 33 35 36 38 39 40 41 42 PART NO. 165451X479 STD541425 156577 153638 131959 66426 51793 136376 88348 157081X479 STD512505 165175X479 151667X479 151665X479 140540 750097 87584X004 151889 152904 147286 154132 152124 751592 700168X479 700166X479 STD523707 750085X007 146630 700331X004 701037 750913X004 61651 142748 ROTARY LAWN MOWER - - MODEL NO. 917.377421 DESCRIPTION Uppor Handle Locknut Zone Control Cable Rope Guide Handle Bolt Wire Tie Hairpin Cotter Handle Knob Flat Washer 3/8 Lower Handle Hex Tapping Screw 1/4-20 x 1/2 Support Rod Handle Bracket Assembly (Left) Handle Bracket Assembly (Right) Rear Deflector Hex Washer Head Screw #10-24 x 1/2 Deflector Bracket Discharge Guard Decal, Mulching Door Hinge Rod Housing Bracket TorsionSpring Loci(nut Support Bracket (Left) Support Bracket (Right) Hax Hea(:lBolt 3/8-16x3/4 Wheel Adjusting Bracket Spacer Selector Spring Selector Knob Axle Arm Assembly Belleville Washer Shoulder Bolt KEY NO. PART NO. 43 44 45 46 48 49 51 52 53 54 55 56 57 58 59 60 62 63 64 68 151138 57143 83923 85463 149741 STD541425 134612 150406 851084 850263 851074 152202 851514 752118 751399 74180410 156516 85543 87677 ...... 69 70 71 72 --- 15335OX479 153262X479 63601 151440 166736 161058 DESCRIPTION Wheel & Tire Assembly Wave Washer Locknut 3/18-16 Danger Decal Thread Cuffing Screw 5/16-18 x 3/4 Hex Locknut Debris Shield Hex Head Thread Rolling Screw 3/8-16 x 1-1/8 Hex Head Screw 3/8-24 x 1-3/8 (Grd. 8) Helical Lockwashar Hardened Washer Blade 22" Blade Adapter Deflector Bracket, Deflector screw 1/4-20 Lawn Mower Housing (incl. Raf. #46) Engine Pulley Hi-Pro Key #HP 505 Engine - (See Breakdown) Craftsman Model 143.996502 Support BaldHandle RH Support Brk'tHandle LH Locknut Kaps Hubcap Owner's Manual (English/Spanish) Warning Decal (Not SHown) Available accessories not included with lawn mower: 71 33072 7133623 7133500 71333OO 71 33316 Grass Catcher Gas Can (2.5 gal.) Fuel Stabilizer SAE 30W Oil (20 oz.) Mower Cover CRAFTSMAN ROTARY LAWN MOWER - - MODEL NO. 917.377421 21 ¢o I I I M 2 23 CRAFTSMAN KEY NO, 1 2 4 5 6 9 12 15 16 19 21 22 23 24 PART NO. 145793 STD541425 158755 146323 146527 150495 751152 701037 88118 67725 88080 137054 12000058 150340 ROTARY LAWN MOWER - - MODEL NO. 917.377421 DESCRIPTION Control Bar Locknut 1/4-20 Hex Washer Head Screw 1/4 x 2.0 Control Cable Assembly V-Belt Spring Retainer Locknut 1/4-20 Selector Knob Felt Washer Washer 1/2 x 1-1/2 x.134 Dust Cover Pinion E-Ring Wheel & Tire Assembly KEY NO. PART NO. 26 28 29 30 32 36 37 39 41 42 43 44 45 145212 150182 152903 143603 154990 132010 137052 75192 137090 702511 152018 152019 86012 DESCRIPTION Hex Flange Locknut Hubcap Drive Cover decal Pan Head Tapping Screw #10-24 x 2-3/4 Ddve Cover Locknut Drive Pulley Spdng Spdng Gear Case Assembly Wheel AdjusterAssembly (Left) Wheel AdjusterAssembly (Right) Ddveshaft Cover CRAFTSMAN 4-CYCLE ,ENGINE , MODEL NUMBER 143.996502 _370A 130 120 119 416 125 178 _ 245 _. 40 CRAFTSMAN KEY PART NO. NO. 1 2 6 7 12 12A 37266 26727 33734 36557 36775 36558 12B 14 15 16 17 18 19 2O 30 40 36694 28277 30589 34839A 31335 651018 36281 326OO 35801 40027 4OO28 41 40025 4OO26 42 4OOO6 400O7 43 20381 45 36777 46 32610A 48 27241 5O 36778 52 29914 69 35261 70 34311E 72 73 76 80 81 82 83 86 89 90 92 93 100 101 103 110 119 120 125 126 130 135 150 151 151A 169 172 174 178 182 30572 28833 27897 30574A 3055OA 30591 30588A 65O488 611004 611112 650815 650816 34443B 610118 651007 37047' 36787 36825 37288 37289 6021A 35395 31672 31673 40017 36783 36784 30200 29752 6201 4-CYCLE ENGINE MODEL NUMBER 143.996502 KEY NO. DESCRIPTION Cylinder(Incl. 2,20 & 150 Dowel Pin Breather Element BreatherAss'y.(Ind. 6 & 12A) BreatherTube Breather Cover & Tube (Incl. 1213) BreatherTube Elbow Washer Governor Rod (ind. 14) Governor Lever Govemor Lever Clamp Serew, TorxT-15, 8-32 x 19/64" PART NO. 184 26756 ExtensionSpdng Oil Seal Crankshaft Piston, Pin & Ring Set (Std.) Piston, Pin & Ring Set (.010" OS) Piston& PinAss'y.(Std.) (Incl. 43) Piston& PinAss'y.(.010" OS) (Incl. 43) Ring Set (Std.) Ring Set (.010" OS) Piston Pin RetainingRing Connecting RodAss'y. (Ind. 46) Connecting Rod Bolt Valve Lifter Camshaft (MCR) Oil PumpAss'y. * Mounting Flange Gasket Mounting Flange (Ind. 72 thin 83,3O6) Oil Drain Plug (Ind. 73) Drain Rug Gasket Oil Seal Governor Shaft Washer Governor Gear Ass'y. (Ind. 81) Governer Spool Screw, 1/4-20 x 1-1/4" Flywheel Key 185 186 189 191 195 207 216 223 224 238 239 241 245 250 260 261 262 263A 275 277 285 287 290 292 298 300 301 305 306 307 309 310 313 347 370A 370C 380 390 400 36785 32653 650839 36559A 610973 34336 33086 650451 36786 650932 34338 36919 36905 36920 36980 30200 65O831 36921 36790 650988 35000A 650926 29774 26460 28763 36916 36246 35647 36996 35499 650562 35648 34080 651038 36261 37199 640174 590739 36792B 416 36085 DESCRIPTION " CarburetorTo Intake Pipe Gasket Intake Pipe Governor Unk Screw, 1/4-20x3/8" S.E. Brake Bracket(Ind. 195) Terminal Throttle Unk R.P.M. AdjustingLever Screw, 1/4-20x 1" * Intake Pipe Gasket Screw, 10-32 x 49/64" * Air Cleaner Gasket Air Cleaner Collar Air Cleaner Filter Air Cleaner Cover Blower Housing Screw, 10-24 x 9/16" Screw, 1/4-20 x 1/2" Starter Grill Muffler Screw, 1/4-20 x 2-5/16" Starter Cup Screw, 8-32 x 21/64" Fuel Une Fuel Una Clamp Screw, 10-32x35/64" Fuel Tank (Incl. 292 & 301) Fuel Cap Oil FillTube * "o'-Ring "O'-Ring Screw, 10-32 x 1/2" Dipstick Spacer Screw, 10-32 x 51/64" LubdcaffonDecal Pdmer Decal Carburetor(Ind. 184) Rewind Starter Gasket Set (Incl. Items Marked *) SparkArrestor Kit (Ind. 417) Rywh_ BellevilleWasher Flywheal Nut Solid State IgnNJon Spark PlugCover Screw, TorxT-15, 10-24 x 15/16" GroundWire * Cylinder Head Gasket Cylinder Head Exhaust Valve (Std.) (Ind. 151) Intake Vak,e (StdJ (Ind. 151) Screw, 5/16-18 x 1-1/2" ResistorSpark Plug (RJ19LM) 417 650821 900 ---900 ---- Screw, 10-32 x 1/2" (Opltonal) Replacement Engine NONE Replacement S/B 75O832, order from 71-999 RPM High 2900 to 3200 NOTE: This enginecould have been builtwith 59070 starter. NOTE: Allcomponentdimensionsgiven in U.S. inches. 1 Inch = 25.4 mm Va_a _"9 Valve SpringCap Intake Valve Seal * Valve Cover Gasket Valve Cover Screw, 10-24 x 9/16" Nut & Lock Washer, 1/4-28 Screw, 1/4-28 x 7/B" 41 CRAFTSMAN 4-CYCLE ENGINE KEY NO. 1 2 4 5 6 7 16 17 18 20 20A 25 27 28 29 3O 31 35 36 36A 37 40 44 47 48 48A 60 PART NO. 631615 631767 631184 631183 64OO70 65O5O6 631807 651025 63O766 640018 64OO53 631867 "631024 632019 631025 631021 631022 3OO45A 640080 632766 632547 640175 27110A 630748 631027 631027 632760 MODEL NUMBER 143.996502 DESCRIPTION Throttle Shaft & Lever Assembly Throttle Retum Spdng • Dust Seal Washer • Dust Seal (Throttle) Throttle Shutter • Shutter Screw Fuel Fitting Throttle Crack Screw/Idle Speed Screw Tension Spring Idle RestrictorScrew Idle Rastrictor Screw Cap Float Bowl • Roat Shaft Float * Float Bowl "O" Ring • Inlet Needle, Seat, & Clip (Incl. 31) Spdng Clip Pdmer Bulb/Retainer Ring Main Nozzle Tube Carburetor Tube • "O" Ring, Main Nozzle Tube High Speed Bowl Nut BoWl Nut Washer • Welch Plug, Idle Mixture Well • Welch Plug, Atmospheric Vent • Welch Plug Repair kit (Incl. Items Marked *) 42 CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996502 KEY NO. 1 2 3 4 5 6 7 8 11 590702 590599A 590600 590696 590601 590697 590698 590699 590700 590703 12 590535 13 590701 N_ O PART NO. DESCRIPTION Recoil Starter Spring Pin (Ind. 4) Washer Retainer Washer Brake Spdng Starter Dog Dog Spring Pulley & Rewind Spring Ass'y. Starter Housing Ass',/. (40 degree grommet) Starter Rope ( 98" X 9/64" dta.) Starter Handle *.._l NO. __, Ul II --' PART NO. 3 6 EY 7 8 11 590739 590740 590616 590617 590618A 590638 !2 590535 14 590701 590760 " 43 DESCRIPTION Rewind Starter Retainer Starter Dog Dog Spring Pulley & Rewind Spring Ass'y Starter Housing Ass'y (40 degree grommet) _Starter Rope (Length 98" x 9/64" dia.) Starter Handle SpringClip Forthe repairor replacementpartsyou need delivereddirectlyto your home Call 7 am - 7 pm, 7 days a week 1-800-366-PART (1-800-366-7278) Para ordenar piezas con entrega a domicilio - 1-800.659-7084 For in-house major brand repair service Call 24 hours a day, 7 days a week 1-800.4-REPAIR (1-800.473-7274) Para pedir servicio de reparaci6n domicilio - 1-800-676-5811 a For the location of a Sears Parts and Repair Center in your area Call 24 hours a day, 7 days a week 1-800486-1222 For information on purchasing a Sears Maintenance Agreement or to inquire about an existing Agreement Call 9 am - 5 pm, Monday-Saturday 1-800-827-6655 Nmm_N mmmmmm When requesting service or ordering parts, always provide the following information: • Product Type • Model Number * Part Number * Part Description S£ARS Amenca's Repair SpecJat_sts 166736 09,28.98 VB Printed in U.S.A.
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