Download Craftsman 917.377960 Owner`s manual
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Owner's Manual CRAFTSMAN + 6.75 HORSEPOWER 21" MULTI-CUT POWER PROPELLED ROTARY LAWN MOWER Model No. 917.377960 • • • • Safety Assembly Operation Maintenance • • EspaSol Repair Parts CAUTION: Read and follow all Safety Rules and Instructions before operating this equipment Sears, Roebuck and Co., Hoffman Estates, IL 60179 Visit our Craftsman website: www.sears.com/craftsman Warranty Safety Rules Assembly Operation Maintenance Schedule Maintenance 2 2 4 6 10 10 Product Specifications Service and Adjustments Storage Troubleshooting Repair Parts Parts Ordering 11 14 14 16 34 Back Cover LIMITED TWO YEAR WARRANTY ON CRAFTSMAN POWER 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 wom during normal use, such as rotary mower blades, blade adapters, pelts, 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 returning the Craftsman power mower 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 gives you specific legal rights, and you may also have other rights which vary from state to state. SEARS, ROEBUCK AND CO., D/817 WA, HOFFMAN ESTATES, ILLINOIS 60179 Safety standards require operator presence controls to minimize the dsk of injury. Your unit is equipped with such controls. Do not attempt to defeat the function of the operator presence controls under any circumstances. TRAINING: • Read thisoperator'smanualcarefuUy. Always have damage repairedbeforeusing your mower. • Do not use accessoryattachmentsthatare not recommendedby the manufacturer. Use ofsuch attachmentsmay be hazardOUS. • The b_de turnswhen the engineis running. PREPARATION: Become familiar with the ccntrols and know • Alwaysthoroughlycheck the area to be mowed and clear itof all stones,sticks, wires, bones,and otherforeignobjects. These objectswill be thrownby the blade and can cause severe injury. • Always wear safety glasses oreye shields when startingand while usingyourmower. • Dress properly. Do not operatemower when barefootor wearing open sandals. Wear onlysolidshoes withgood traction when mowing. how to operate your mpNer properly. Learn how to quickly stop mower. • Do not allow children to use your mower. Never allow adults to use mower without proper instructions. • Keep tha area ct operstion clear ct all persons, especially small clu'Idranand pets. • Use mower only as the manufacturer intended and as described in this manual. • Do not operate mower if it hes been dropped or damaged in any manner. 2 • Checkfueltankbeforestadingengine.Do • Never cutgrass by pullingthe mower notfillgastankindoors,whentheengineis towardsyou. Mow acrossthe tace of runningorwhenthe engineis hoL Allowthe slopes, never up and down oryou might engineto coolfor several minutesbefore fillingthe gastank. Clean off any spilled gasolinebeforestartingthe engine. • Alwaysmake wheel heightadjustments beforestartingyourmower. Never attempt to do thiswhilethe engineis running. loseyourfooting. Do not mow excesaively steep slopes. Use cautionwhen operating the moweron uneventerrainorwhen changing directions- maintaingoodfooting. • Never operateyour mowerwithoutproper guards,plates, grasscatcherorothersafety devices in place. • Mow only in daylightorgood artif'_allight. OPERATION: MAINTENANCE • Keep your eyes and mind on yourmower and the area beingcut. Do net let other interestsdistractyou. • Do notmow wet orslipperygrass. Never runwhile operatingyour mower. Alwaysbe sure of yourfooting- keep a firm holdon the handlesand walk. • DOnot put hands orfeet near orunder rotatingparts. Keep clearof the discharge opening at all times. • Akvaysstopthe enginewheneveryou leave or are netusing yourmower,or before crossingdriveways,walks,roads,and any gravel-coveredareas. • Never directdischargeof materialtoward bystandersnorallow anyone near the mowerwhile you are operatingit. • Beforecleaning,inspecting,or repairing your mower,stop theengine and make absolutelysurethe bladeand all moving parts have stopped. Then disconnectthe spark plugwireand keep it away from the spark plugto preventaccidentalstarling. • DOnot continueto runyour mowerif you hit a foreign objecL Followthe procedure outlinedabove, then repairany damage before restartingand operatingyour mower. • DOnet changethe governorsettingsor overspeedthe engine. Enginedamage or personalinjurymay result. • Do net operateyourmower if it vibrates abnormally. Excessivevibration is an indicationof damage; stop the engine, safelycheckforthe cause of vibration and repair as required. ' • Do net runthe engineindoors. Exhaust AND STORAGE: • Check the blade and the enginemounting boltsoftento be surethey are tightened properly. • Check all bolts,nutsand screwsat frequent intervalsfor propertightness to be sure mower is in safe workingcondition. • Keep allsafety devices in place and worldng. • To reduce tirehazard, keep the enginefree of grass,leaves or excessivegreaseand oil. • Check grasscatcheroftenfor deterioration " and wear and replaceworn bags. Use only replacemeptbags thatare recommended byandcomply spedr t s ofthe manufacturerof your mower. • Always keep a sharp bladeon yourmower. • Allow engineto cool beforestoring in any enclosure. • Never store mower withfuel in _e tank insidea buildingwhere fumes may reachan open flame or an ignition sourcesuchas a hotwater heater, space heater,clothes dryer,etc. Look for this symbol to point out important safety precautions. It means CAUTION!!! BECOME ALERT!!! YOUR SAFETY IS INVOLVED. 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. WARNING: The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. fumesaredangerous. 3 These accessorieswere availablewhen this lawnmowerwas They are not shipped with your mower. They are also availableat most Sears retailoutletsand service centers. Most Sears storescan alsoorder repairpartsfor you, when you providethe model number of yourlawn mower. Soma ofthese accessoriesmay notapplyto your lawn mower. LAWN MOWER PERFORMANCE CUPPING DEFLECTOR FOR REAR DISCHARGE LAWN MOWERS MULCHER KITS FOR REAR DISCHARGE "GRASS LAWN CATCHERS MOWERS , i_ STABILIZER FOR SIDE DISCHARGE GRASS LAWN CATCHERS MOWERS GAS CANS LAWN MOWER MAINTENANCE MUFFLERS BELTS AIR FILTERS BLADES BLADE ADAPTERS Read these instructions and this manual in SPARK PLUGS WHEELS ENGINE OIL • 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 check its entirety before you attempt to assemble or operate your new lawn mower. IMPORTANT: This lawn mower is shipped WITHOUT OIL OR GASOLINE in the engine. Your new lawn mower has been as- carton thoroughly for additional loose parts. sembled at the factory with the exception of those parts left unassemblsd for shipping purposes. To ensure safe and proper operation of your lawn mower, all parts and hardware you assemble must be tightened securely. Use the correct tools as necessary to ensure proper tightness. All parts such as nuts, washers, bolts, etc., necessary to complete the assembly have been placed in the parts bag. HOW TO SET UP YOUR LAWN MOWER TO UNFOLD HANDLE IMPORTANT: Unfold handle carefully so as not to pinch or damage control cables. • Raise lower handle section to operating position and squeeze the bottom ends of lower handle towards each other until the pin in handle can be inserted into one of the three height adjustment holes. TO REMOVE LAWN MOWER FROM CARTON • Remove protective padding, raise upper handle section into place on lower handle and tighten both handle knobs. • Remove any packing matedal from around control bar. • Remove loose parts included with mower. • Cut down two end corners of carton and lay end panel down flat. 4 • Your handles may be adjusted'ior your mowing comfort. Refer to Service and Adjustments section of this manual. Operator presence control bar Upper handle Lift up Uft up Lower • Mowing position Handle pin 3-posiUon Handle adjustment bracket J TO INSTALL ATFACHMENTS Your lawn mower was shipped ready to be used as a mulcher. To convert to bagging or discharging; See OPERATION section of this manual. KNOW YOUR LAWN MOWER READ THIS OWNER'S MANUALAND SAFETY RULES BEFORE OPERATING YOUR LAWI_ MOWER. Compare the illustrationswithyour lawn mowerto familiarizeyourselfwiththe locationofvariouscontrolsand adjustments. Save this manualfor futurereference. _lese symbols may appear on your lawn mower orin literaturesuppliedwiththe product. Learn and understandtheir meaning. CAUTION OR WARNING ENGINE ON ENGINE OFF FAST SLOW CHOKE FUEL OIL DANGER, KEEP HANDS AND FIEE'_r AWAY i Operator presence control Speed control lever Cable clip Grass catcher Engine oil cap w/dipstick Wheel adjuster lever Mulcher plug Gasoline cap Mulcher door IMPORTANT: This lawn mower is shipped without oil or _lasoline in the engine. MEETS CPSC SAFETY Housing 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 tums when the engine is running. Drive control bar - used to engage power-propelled foward motion of lawn mower. Mulcher plug - Located at the rear discharge opening must be removed when converting to bagging operation. Operator presence control - 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 use when starting a cold engine. Starter handle - used for starting the engine. 6 The operationofanylawnmowercan resultin foreignobjectsthrownintotheeyes,whichcan resultinsevereeyedamage.Alwayswear safetyglassesoreyeshieldswhileopereltng yourlawn mower orperformingany adjustments or repairs. We recommenda wide visionsafety mask over the spectaclesor standardsafety glasses. HOW TO USE YOUR LAWN MOWER ENGINE SPEED The engine speed was set at the factoryfor optimumperformance. Speed is notadjustable. ENGINE ZONE CONTROL CAUTION: Federal regulations require an engine control to be installed on this lawn mower in order to minimize the risk of blade TO OPERATE DRIVE SYSTEM • With engine running, select ground speed by moving speed control lever to desired position. • To start forward motion, pull drive control bar back against handle. • To stop forward motion, release drive control bar. IMPORTANT: Always keep drive control bar fully engaged against handle when in use. lever Speed control contact injury. Do not under any circumstances attempt to defeat the function of the operator controt. The blede tuma when the engine is running, • Your lawn mower is equipped with an operator presence control bar which requires the operator to be pce_ behind the lawn mower handle to start and Operator presence control bar Drive control engaged operate the lawn mower. TO ADJUST CU'I-nNG HEIGHT • All four wheels are adjusted by a single lever. • Pull adjuster laver toward wheel. To raise mower, move lever forward to desired position. To lower mower, move the lever toward the rear. Lower Wheels for high cot Ddve control disengaged TO CONVERT MOWER Your lawn mowerwas shippedready to be used as a mulcher. Toconvertto baggingor d'mcharging: REAR BAGGING- Acr/jj_ Lever /" Raise Wheels for low cut GROUND DRIVE SPEEDS Your lawn mower provides multiple speeds to let you select the spe#d that suits you best. • Lower speeds are for slow, heavy/thick grass cutting or tdmming. • Medium speeds are for normal grass cutting or trimming. • High is for light cutting and forground transport. NOTE: Do not move speed control lever unless the engine is running • Open rear doorand remove muicherplug. Store muicherplugin a safeplace. • You can nowinstallgrass catcber. • To convertto mulchingordischarging operation,installmulcherplugintorear dkschargeopeningof mower. SIDE DISCHARGING- • Mulcherplugmust be installedintorear (_mchargeopening of mower(see above instructions). • Open mulcherdoorand installdischarge deflector under guard as shown. • Mower is now readyfor discharging operation. • To convertto mulchingorbaggingoperation,dischargedeflectormustbe removed and muicherdoor must be closed. SIMPLE STEPS TO REMEI_BER WHEN CONVERTING YOUR LAWN MOWER FOR MULCHING • Rear mulcherplug installed. • Mulcherdoorclosed. CAUTION: Do not runyour lawn mower without rear mulcherplugor approvedgrass catcher in place. Never attemptto operatethe lawnmower withthe rear doorremovedor propped open. Rear door Grass FOR REAR BAGGING * Rear mulcher plug removed. . Grass catcher instailed. • Mt.4cher door closed. FOR SIDE DISCHARGING handle - hook • Rear mulcherplug installed. • Side dischargedeflectorinstalled. TO EMPTY GRASS CATCHER CAUTION: Do not runyour lawn mower withoutrear mulcherplugin place or'approved • Lift up on grass catcher using the frame handle. grasscatcherin place. Never attemptto operate the lawn mowerwith • Remove grass catcher with clippings from under lawn mower handle. the rear doorremovedor proppedopen. • Empty clippings from bag using both frame handle and bag handle. NOTE: Do not drag the bag when emptying; it will cause unnecessary wear. / Mulcher plug "" BEFORE STARTING ENGINE OIL Your lawn mower is sh'_:_d without oil in the engine. • Be sure mower is level and area around oil flUis clean. Mulcher door • Remove engine oil cap and fillto the fult line Open mu_hardoor onthe_-_ck. NOTE: Allow oil to settle down into engine for accurate dipstick reading. • Engine holds 27ozs. of _. Fortypeand grade of oil to use, see =ENGINE" in Maintenance section of this manual. Discharge deflector • Pour oil slowly. Do not over fiU. • Check oil level before each use. Add oil if needed. Fill to full line on dipstick. • To read proper level, tighten engine oil cap each time. TO ATrACH • 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 mere often under dusty, dirty conditions. GAS GRASS CATCHER • Uft the rear door of the lawn mower and place the grass catcbar frame hooks into the slots of the rear door. • The grass cetcher is secured to the lawn mower housing when the rear door is lowered onto the grass catcher frame. • RII fuel tank. Use fresh, dean, regular unleaded gasoline with a minimum of 87 8 octane. (L of loaded gasoline will increase carbon and lead oxide deposits and reduce valve life). Do not mix oil with gasoline. Purchase fuel in quantities that can be used within 30 days to as.sum 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 o,fadds 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 gas tank, start the engine and let it run until the fuel lines and carburetor are empty. Use fresh fuel next season. See Storage Instructions for additional information. Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur. Gasoline filler cap TO START Make the second cut to the desired height. For extremely heavy cutting, reduce the width of cut. Pores in cloth grass catchers can become tilled with dirt and dust with use and the catcher will collect loss grass. To prevent this, regularly hose catcher off with water and lot dry before use. MULCHING NOTE: In cooler weather it may be necessary to repeat priming steps. In warmer weather over priming may cause flooding and engine _'ill not start. If you do flood engine, wait a few minutes before attempting to start and do not repeat priming steps. TIPS IMPORTANT: For best performance, keep mower housing free of built-up grass and trash. 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 wi biodegrade quickly to provide nutrients for the lawn. Always mulch with your highest engine (blade) speed as this will provide th best recutting action of the blades. • Avoid c,,uttingyour lawn when it is wet. Wet grass tends to form dumps 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. ENGINE • To start a cold engine, push primer three (3) 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. • To stop engine, release operator presence control bar. MOWING • For best results, adjust the lawn mower cutting height so that the lawn mower cuts off only the top one-third of the grass blade If the lawn is overgrown it will be necessan to raise the height of cut to reduce pushing effort and to keep from overloading the engine and leaving dumps of mulched grass. For extremely heavy mulching, reduce your width of cut by overlapping previouslycutpathandmowslowiy. • Certain types of grass and grass conditio_ 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 pattem from weekto week. Mow north to south one week then change to east to west the next week. Th_ will help prevent matting and graining of th lawn. MOWING TIPS • For most cutting conditions and better bag ngperformance, theenojno speed should be set in the fast pos_an. • Under certain conditions, such as when mowing very tall grass, raise the mower height on the first cut to reduce pushing effort, to avoid overheating the engine, and to avoid leaving clumps of grass clippings. 1/3 9 MAINTENANCE SCHEDULE ..,,____O_/_._ AS YOU COMPLETE /_'___.qr:l::lVlP.l:: REGULARSERVICE CheckforLooseFasteners Clean/Inspect Grass Catcher n f_,_O_,_;/'_._7 I/ SERVICE DATES , (M Clean Lawn Mower Clean Under Drive Cover (Power-Propelled Mowers) _Ch_(If Equipped) drive I_l_uHeys (Power-Propelled Mowers) R " _i _' " _' i 1/ CheddSharpan/Replace Blade LubricationChart Clean Battery/Recharge IB_ s_rtMower_ I E Check LeVelchange En_lineOil Engine Oil € ? Clean Filterh,_pect Air Muffler N Clean orAir Replace Spark Cartridge Plug Replace Filter Paper I/3 1/ ii/ 1/ 1/_ _1_1.= 11/2 1. Changemore oltenwhenoperdng undera heavyloador kt highambienttemperatures. 2 - SeMce moreonenv,41en opemUngIn didyor dustycom_lons. 3 - Re_ bladesmornoltenwhenmo_ng In sandysol. 4 - C_uge 48 houmat e_:l ofseason. LUBRICATION GENERAL RECOMMENDATIONS i The warrantyonthis lawn mowerdoes not cover itemsthat have been subjectedto operatorabuse or negligence.To receive full value fromthe warranty,operatormust maintainmower as instructedin_is manual. Some a_ustments willneed to be made pedoQrzcally to properlymaintainyour unit. Allacr_ inthe Serviceand Adjustmentssectionofthis manualshouldbe checkedat least once each season. (_) (_ Keep unit well lubricated (See "LUBRICATION CHART"). Engine oil Drive pins Spray lubricant (_) Refer to MAINTENANCE "ENGINE' section. i • Checkengineoillevel. • Check for loose fasteners. LUBRICATION _) \ repleceairfilterelement and check bladefor wear. A new sparkplugand dean/new air filterelement assuresproperair-fuelmixture and helpsyourenginerun betterand last longer, I°°'us'°r \ • Or eayear,rep cethespark r ug, • Followthe maintenanceschedulein this manual. BEFORE EACH USE CHART (_) Wheel IMPORTANT: Do not oilor greaseplastic wheel bearings.VL_ous lubricantswill attractdustand dirtthatwigshodenthe lifeof the selflubricatingbearings,ffyou feel they must be lubricated,use onlya dry,powderedgraphitetype lubricant spadngh/. 10 ; ;,1ODUCT SPECIFICATIONS 917.377960 MODEL NUMBER SERIAL NUMBER DATE OF PURCHASE HORSEPOWER: 6.75 GASOLINE CAPACITY/TYPE: 1.5 QUARTS UNLEADED REGULAR SAE 30 (ABOVE 32°1=) OIL TYPE (API-SF/SG/SH): SAE 5W-30 (BELOW 27 OZS. OIL CAPACITY: ;PARK PLUG(GAP: 32°F) CHAMPION .030") VALVE CLEARANCE: RJ19LM or J19LM INTAKE: .004 - .008 EXHAUST: .004 - .008 SOLID STATE IGNITION AIR GAP: .01251N. BLADE 35-40FT. BOLT TORQUE: LBS. • The model and serial numbers will be found on a decaf attached to the rear of the lawn mower housing.Record both serial number and date of purchase in space provided above.. LAWN MOWER Always observe safety roles 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. BLADE CARE For best results, mower blade must be kept sharp. Replace bent or damaged blades. TO REMOVE BLADE • Disconnect spark plug wire from spark plug and place wire w0hereit cannot come in contact with spark plug. •Tum lawn mower on its side. Make sure air filter and carburetor are up. • Use a wood block 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. • 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. TO REPLACE BLADE • 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 adapter and crankshaft. • Use block of wood between blade and lawn mower housing and tighten the blade bolt, turning clockwise. • The recommended tightening torque is 35-40 ft. Ibs. IMPORTANT: BLADE BOLT IS GRADE 8 HEAT TREATED. 11 TO SHARPEN BLADE NOTE: We do not recommend sharpening blade - but if you do, be sure the blade is balanced. Care should be taken to keep the blade balanced. An unbalanced blade will cause eventual damage to lawn mower or engine. • The blade can be sharpened with 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 Crankadaptor shaft Key keyway • If you remove the drive pinions, wipe clean with dry cloth. Reassemble dry. Do not lubricate. Do not use oil or grease. • The pinion gear, on both sides of the mower, are the same, however, they must be installed correctly. If installed incorrectly, the drive system will not work. • There are arrows embossed on both sides of the pinion gear. With the arrow at the top of the pinion, the arrow must point towards front of mower. If the arrow points to the rear, tum the pinion around and assemble to mower. • Place wheels back on adjuster axles. • Replace Iocknuts and hubcaps. Blade Pinion • Blade E-ring bolt Locknut Lock washer Hardened Trailing washer edge GRASS CATCHER Blade adaptor Crankshaft • The grass catcher may be hosed with water, but must be dry when used. • Check your grass catcher often for damage or detedoration. Through normal use it will wear. If catcher needs replacing, replace only with a manufacturer approved replacement catcher. Give the lawn mower model number Washer Hubcap ENGINE LUBRICATION Use onlyhighqualitydetergentoilratedwith API service c__ssification SF, SG orSH. Select the oil's SAE viscositygradeaccording to your expectedopera'dngtemperature. SAE VISCOSITY GRADES when ordering. DRIVE WHEELS Check rear drive wheels each time you mow to be sure they move freely. The wheels not turning fretdy means trash, grass cuttings, etc., may be inside the drive wheel and dust cover area and must be cleaned out to free drive wheels. If necessary to clean the drive wheels, check both rear wheels. • Remove hubcaps and Iocknuts. • Remove wheels from wheel adjuster axles. 0" .30" .ZO" TEMPERATURE *lO, r 10" 20- 30" RANGE ANTICIPATED BEFORE NEXT OI4- CHANGE 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°1. Check your engine oil level more frequently to avoid possible engine damage from running low on oil. 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. • Remove any trash or grass cuttings from inside the dust cover, pinion and/or drive wheel gear teeth. 12 Checkthe_-ankcsseoil level before stadk_ the engine end after each five (5) hours of continuous use.T.jhtenoilplugsecurely each time you check the oil level. TO CHANGE ENGINE OIL Cover knob /,_ NOTE: Before t_ng lawn mower to drain oil, drain fuel tank by running engine until fuel tank Air filter cover Hinge isempty. • Disconnect spark plug wire from spark plug Paper filter 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 end forth to remove any oil trappedinsideof 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 • Replaceengineoilcap. • Reconnect spark plug wire to spark plug. MUFFLER Inspectand replacecorroded muffleras it could create afirehazardend/or damage. SPARK PLUG Change your spark plug each year tomake your enginestart easier end run better. Set sparkplug gap at .030 inch. CLEANING IMPORTAN'E For best performance, keep mower housing free of built-up grass end trast Clean underside of mower housing after each USe. Container 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. Do not wash air filter. TO CHANGE AiR FILTER • Loosen cover knob. • Swing cover down and remove from hinge. • Pull paper filter out of air cleaner body. • Clean air cleaner cover and body. • Install a new paper filter. • Reinstall cover to air cleaner body. Be sure hinge is assembled properly. • Swing cover up and tighten cover knob. (Do not overtighten). CAUTION: Disconnect spark plug Wire from spark plug and place wire where it cannot come in contact with the spark plug. • Clean the underside of your lawn mowel 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. 13 CAUTION: BEFORE PERFORMING SERVICE OR ADJUSTMENTS: ANY • Release control bar. • Make sure the blade and all moving parts have completely stopped. Disconnect spark plug wire from • Handle pin Med. Low sparkplugandplacewheeitcannot j 3-position Handle adjustment bracket come in contact with plug. LAWN MOWER TO ADJUST CUTTING HEIGHT See "1"O ADJUST CUTTING HEIGHT" 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 81rown out the rear of the lawn mower into the ENGINE ENGINE SPEED Your engine speed has been factory seL Do not attempt to increase engine speed or it may result in personal injury. If you believe that the engine is running too fast ortoo slow, take your lawn mower to an authorized service center/department for repair and operator's mowing position. If the rear deflector becomes damaged, it should be adju_nent replaced. Your carburptor has a non-adjustable fixed main jet for mixture control. If your engine does not operate properly due to ,suspected carburetor problems, take your lawn mower to an authorized service center/department for repair and adjustment. IMPORTANT: Never tamper with the engine governor, which is factory set for proper engine speed. Ovempeeding the encjine above the TO ADJUST HANDLE The handle on your !a_ mower has three (3) he_htpesR_ns - adjust tohe_htthatsu_s you. • Squeeze the bottom ends of lower handle towards each other until the pin in handle can be inserted into one of the three height adjustment ho_s. CARBURETOR factory highspeed setting canbedangerous it you _hink the engine-governed high speed needs adjusting, contact your nearest AUTHORIZED service center, which has proper equipment and experience to make anynecessarya_. 14 Immediately prepareyourlawnmowerfor storage at the end of the season or if the unit will not be used for 30 days or more. LAWN MOWER When lawn moweristo be storedfor a period oftime, clean itthoroughly,removeall dirt, grease, leaves, etc. Store in a clean, d_ area. • Clean entirelawn mower(See "CLEANING" in the Maintenancesectionofthis manual). • Lubricateas shown in the Maintenance sectionof this manual • Be sure thatall nuts,belts, screws, and pins are securelyfastened. Inspect moving partsfor damage, breakage and wear. Replace ifnecessary. • Touch up all rustedorchippedpaint surfaces; sand lightly before painting. HANDLE • You can foldyourlawn mowerhandlefor storage. • Loosenthe two (2) handle knobson sides of the upper handleand allow handleto fold downto the rear. • Squeeze the bottomends of lowerhandle toward each otheruntilpinsin handleclear the bracketsand pivot entire handle assemblyforwardand allowitto reston mower. • When setting up your handlefrom the storagepealllon, the lowerhandlewill requiremanuallyIocldngintothe mowing position. IMPORTANT: When folding the handlefor storageor transportationbe sureto fold the handle as shown or you may damage the controlcables. Operator presence control bar Upper handle Lower handle position ENGINE FUEL SYSTEM IMPORTANT: Itis importantto preventgum depositsfromformingin essentialfuel system partssuchas carburetor,fuel filter,fuel hose, ortank duringstorage.Also,experience indicatesthat alcoholblended fuels (called gasoholorusingethanolor methanol)can attract moisturewhich leadsto separationand formation of acids duringstorage.Ack_ gas can damage thefuel systemof an engine while in storage. • Drain the fueltank. • Startthe engineand let itrun untilthe fuel lines and carburetor are empty. • Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur. • Use fresh fuel next season. NOTE: Fuel stabilizer is an acceptable alternative ih minimizing the formation of fuel gumdepositsduringstorage. Add stabilizerto gasolineinfuel tank or storagecontainer. Alwaysfollowthe mix ratiofound on stabilizer container. Run engine at least 10 minutes after addingstabilizerto allow the stabilizerto reachthe carburetor. Do notdrainthe gas tank end carburetorif usingfuel stabilizer. ENGINE OIL Drain oil(withenginewarm) end replacewith clean engine oil. (See "ENGINE" in the Maintenance sectionof thismanual). CYUNDER • Remove spark plug. • Pour one ounca (29 ml) of oilthrough spark plughole intocylinder. • Pull starterhandleslowlya few times to distributeoil. • Replace with new spark plug. OTHER • Do notstore gasolinefromone seasonto another. • Replace your gasolinecan if yourcan starts to rusL Rustand/or dirt in yourgasolinewill cause problems. • If possible,storeyour unitindoorsand cover if to give protectionfromdustend dirt. • Cover your unitwith a suitableprotective cover that does not retainmoisture. Do not use plastic. Plasticcannotbreathewhich allowscondensationto form end willcause your unit to rust. 15 IMPORTANT: Nevercovermower while CAUTION: engine and exhaust areas are stillwarm. with gasoline in the tank inside a building where fumes may reach an open flame or spark. Allow the engine to cool before storing in any enclosure. TROUBLESHOOTING CHART PROBLEM Will not start CAUSE CORRECTION Dirty air filter. Out of fuel. Stale fuel. 2. 3. 8. Clean/replace air filter. Fill fuel tank. Drain tank and refill with fresh clean fuel. Waterin fuel. 4. Drain fuel tank and carburetor and refill tank with fresh gasoline. Spark plug wire is disconnected. 5. Connect wire to plug. 6. Replace spark plug. Bad spark plug. Loose blade or broken blade 7. Tighten blade bolt or replace blade adapter. adapter. Control bar in released position 8. Depress control bar to handle. 9. Control bar defective 9. Replace control bar. 1. Rear of lawn mower 1; Set in "Higher Cut" position. 1. 2. 3. 4. 5. 6. 7. Loss of power Never store the lawn mower 1. 5. 6. housing/blade dragging in heavy grass. Cuffing too much grass. Dirty air filter. Buildup of grass, leaves and trash under mower. Too much oil in engine. Walking speed too fast. 1. 2. Worn, bent or loose blade. Low engine speed. 3. Buildup of grass, leaves, and trash under mower. Excessive vibration 1. 2. Worn, bent or loose blade. Bent engine crankshaft. Starter rope hard to pull 1. Engine flywheel brake is 1. Depress control bar to upper on when control bar is released. handle before pulling starter rope. 2. Contact an authorized service Bent engine crankshaft centerldepartment. Blade adapter broken. 13. Replace blade adapter. Blade dragging in grass. 4. Move lawn mower to cut grass or to hard surface to start engine. 2. 3. 4. Poor cut - uneven 2. 3. 4. 16 2. Set in =Higher Cut" position. 3. Clean/replace air filter. 4. Clean underside of mower housin 5. Check oil level. 6. Cut at slower walking speed. 1. Replace blade. Tighten blade bolt 2. Set engine speed control in fast position. 3. Clean underside of mower housin! 1. Replace blade. Tighten blade bolt. 2. Contact an authorized service centerldepartment. TROUBLESH( PROBLEM OTING CHART CAUSE CORRECTION Grass catcher not filling (If so equipped) 1. 2. 3. 4. Cutting height too low. Lift on blade worn off. Catcher not venting air. Low engine speed. t. Raise cutting height. 2. Replace blade. 3. Clean grass catcher. 4. Set engine speed control in fast position. Hard to push 1. Grass is too high or wheel height is too low. Rear of lawn mower t. Raise cutting height. 2. Raise rear of lawn mower 2. 3. 4. Loss of drive 1. 2. 3. 4. housing/blade dragging in grass. Grass catcher too full. Handle height position not right for you. Belt wear. Belt off of pulley. Drive cable worn or broken. Dirt in drive pinions. 17 housing one (t)setting higher. 3. Empty grass catcher. 4. Adjust handle height to suit. .1. 2. 3. 4. Check/replace drive belt. Check/reinstall drive belt. Replace drive cable. Clean drive pinions. ROTARY LAWN MOWER - - MODEL NO. 917.377960 2 22 ¢o O') 41 24 $6 ROTARY LAWN MOWER - - MODEL NO. 917.377960 KEY NO. GO -q 1 2 3 4 5 6 7 6 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 PART NO 167163 161105X479 131036 132001 63601 66426 131959 87692 164265 161551 73990500 51793 162949 660733X004 83816 162085 161548 165261 166907 161568X479 168227X479 150078 163183 63124 161333 163409 161550 88652 166036X479 851514 159267 851074 850263 851084 166032 166385 150406 DESCRIPTION Handle, Upper DIx Coral. (Includes Grip) Handle, Lower Bail, Cont. Wire DIx Coral. BIk ,Guide, Rope, Side Nut, Hex Lockwashar 1/4-20 Wire, Tie Bolt, Handle 5/16-18 x 1.75 Knob, Handle Grip, Hdl Foam Smooth Bolt, Sq. Neck Nut, Hax Lockwashar Ins. 5/16-18 UNC Cotter, Hairpin Engine control Bracket, Upstop Screw, Hex Washer Head Tapping 10-2 Kit, Door Rear Sea!, Door Plug, Mulcher Kit, Housing Handle, Bracket Asm. Left Handle, Bracket Aam. Right Screw, Hex Wshd Bolt, Hax Head 5/16-18 x 5/8 Nut, Hex Lock Wshr 5/16-18 Baffle, Side Screw 12 x 518 Skirt Screw, Hinge 114-20 x 1.25 Belt Cover, Top Adapter, Blade w/key Longer Blade, 21" Washer, Hardened Lockwasher, Helical Spring 3/8 Screw, Hex Head 3/8-24 x 1.38 Pulley, Fixed Beadng Support Assy. Bolt, Engine KEY NO. 38 39 40 41 45 46 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 --- PART NO ..... 169294 161358 85463 166034 166041 85179 166039X007 54583 166045 166115 166037 750097 166383X479 68038 166391X004 57808 166042 166050 145212. 155552 166022X007 166043 160829 166885 166028 88349 161058 169206 DESCRIPTION Engine (See Breakdown) Craftsman 143.996710 Grass Catcher Bag Grass Catcher Frame Danger Decal Rod, Pulley Engage Bushing Retainer Clip Clamp Screw Spacer Ballavilla Washer Belt Cover, Bottom Screw Cable Support Bracket Nut Bracket Assy. Screw V-Groove Pulley Idler Arm Spacer Flange Nut Locknut Idler Arm Idler Pulley Shoulder Bolt Door Assy. Multi Cut Guard Nut Warning Decal (Not Shown) Owner's Manual Available accessories not included with lawn mower:. 71 33623 Gas Can (2.5 gal.) 71 33500 Fuel Stabilizer 71 33300 SAE 30W Oil (27 oz.) ROTARY LAWN MOWER - - MODEL NO. 917.377960 12 Co 41 24 ROTARY LAWN MOWER -- MODEL NO. 917.377960 KEY NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 PART NO 166047 167259 54583 167498 161537 750634 166060 132010 166049 166021X004 17541011 166189 166388 145354 57079 161584X479 161602 160477X004 167650 12000022 163365 166849 DESCRIPTION Drive Control Ball Control Drive Screw Ddve Cable Cover Drive Screw Thdro110-25 x .50 V-Belt Nut Lock Ranged 3/8-16 Zinc Pulley Driven Belt Keeper Bracket Screw Hex Wash Head 10-24 X .668 Pivot Rod Cover Transmission Asm. Pin Spdng Thrust Washer Hardened Rod Connecting Spdng Extension Spring Selector Knob Selector Spring E-Ring 7/8 Bearing Support Bearing Ball KEY NO. 23 24 25 26 27 28 29 30 32 33 34 35 36 37 38 39 40 41 42 43 44 45 PART NO 161118X004 57808 166453 156450 52160 12000058 88080 67725 150342 145212 150181 160785 X004 160786X004 161463 163409 .700279 150339 150182 83923 19572215 144929 751152 DESCRIPTION Retainer Drive Asm. Stmp, Screw Hex Head Tapping 1/4-20 x .75 Drive Pawl Pinion, Drive Washer E-Ring 7/16 Cover, Dust Wheel Washer 1/2 x I-1/2 x .134 Wheel 9 x 2 Nut Hex Flange Lock Hubcap, Mag Platinum 9" Shaft Asm. Rear Shaft Asm. Front Retainer Front Shaft Screw 12 x 5/8 Clip Retainer Wheel 8 x 2 Hubcap, Mag Platinum 8" Nut, Hex Flange Lock 3/8-16 Washer Screw 1/4 x2.12 Lock.nut (_RrAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996710 301 3OO ! 2D2 12 45 187A 45 4O 251 75 4O CRAFTSMAN KEY NO. 1 2 6 9 10 11 12 12C 14 15 16 17 18 19 20 25 PART NO. 36177 27652 36059 " 59O568 36O02 36003A 32447 36005A 28277 36OO6 36OO8 31335 651018 36103 36010 37149 4-CYCLE ENGINE MODEL NUMBER 143.996710 KEY NO. DESCRIPTION Cylinder(Incl.2,10,12,20 & 125) DowelPin BreatherElemont Screw, 10-24 x 3/4" BreatherValve Body Check Valve BreatherTube * BreatherCover & Gasket Rat Washer GovernorRod (Machined) GovernorLever GovernorLeverClamp Screw, TorxT-15, 8-32 x 19/64" GovernorSpring Oil Seal 6508_ 36178 400O4 4OOO6 41 36070 41 36071 42 42 43 45 40006 40007 2O381 36023A 46 48 50 52 69 70 32610A 3603O 36031A 29914 36032A 37271 75 80 81 6_ 36010 30574A 30590A 30591 83 85 86 89 90 91 92 93 100 101 103 36O57 36O34 650924 611154 611155 611156 650815 650816 34443B 610115 651007 110 119 120 125 36054 36061 36187 36471 DESCRIPllON 151 151A 169 172 174 177 184 186 187A 190 191A 192 193 194 195 198 199 31673 40016A 27234A 32755 30200 650g_5A 36183 36009 37148 36013 36012 36016 36015 36014 610973 36017 36018 LowerValve SpringCap Intake Velve Seal • Valve SpdngBox Gasket BowerHous_j Baff_ 239 36048 So'ew, 1/4-20 x 5/6= Crankshaft Piston,Pin,RingSet (Std.) Piston,Pin,RingSet (.010 OS) Piston& PinAss'y.(Std.) (Incl.43) Piston& PinAss'y.(.010 OS)(indA3) P_j set (Std.) 240 36190 "Cad_ur_or To Air Cleaner Gasket Air CleanerBody(Ind. 239 243B 651041 245 36046 250 36191 251 251A 650933 255 361_ 256 650ee3 26O 361= Air Cleaner Stad Air CleanerF11tar Air CleanerCover LockNut, 114-20 Wing Nut,1/4-20 ControlRata Screw,8-32 x 21/64" R_ Set (.010OS) 262 65O737 PistonPin RetainingRing 263A 3619_ Comec_g RodAss_/. (Incl.46) 275 276 36107A 36O43 Cofmect_g Rod Bolt Valve Lifter Camshaft(MCR) Oil PumpAss'y. • Moun_ngFlangeGasket Moun_ngFlange(Incl.72 thru85) Oil Seal GovernorShaft Washer GovernorGear Ass'y. (Ind.81) GovernorSpool IdlerGear Screw, 1/4-20 x 1-9/16" FlywheelKey Flywheel FlywheetFan Bellev111e Washer FlywheelNut SolidState _ SparkPingCover p_3rew,TorxT-15, 10-24 x 15/16= GroundWire • Cy_der Head Gasket Cyr_derHead 277 285 287 290 292 300 301 305 307 308 310 346A 347 350 370A 370C 370R 380 650927 34449A 650_6 29774 26460 36189 36246 36063 35499 36040 36064 28763 650898A 36045 36261 37318 37317 Screw, 1/4-20 x 1/2" StarterGrill Mufller LoddngPlate Screw,5/16-18 x2-11/32" StarterCup Screw,8-32 x 21/64" FuelLine FuelLine Clamp FuelTank (Ind. 301) FuelCap Oil RIITube 390 400 590739 36062D 416 36085 417 _1 ,_s'y.(!_.p_5) 26 30 4O 4O PART NO. 125 126 36472 29314(3 130 135 6021A 35395 150 31672 (RJlSt.M) Vak'eSp_g Screw, 10-24 x 9/16= CarburetorMour_ng Stud Cad0uretorGasket GovernorLink Air Baffle BrakeLeverAss'y. BrakeControlLever BrakeControlLeverUnk BrakeSpdng RetainingRing Ter_ Ass_/. Brake_ Lever Sprig BrakeLeverBush_ &350) aowerHous_ "_R_g RHTube Cr_ D_ck Screw, 10-82 x 35/64" Screw, 10-,3_x27/32" Primer LubricationDecal Pdmer Decal WarringDecal CaCouretor(Ind. 184,187A &23S) 900 Exhau,_ Vak,e (Std.)(ind. 151) E_d_uetVa_e (1/32" OS) Intake Valve (Std.)(Ind. 151) Screw, 5/16-18 x 1-1/2" ResistorSpark Plug ValveSlxlngBoxCover 900 RewindStalter Gasket Set (Ind. Items Marked*) SparkArrestorK;t(ind. 417){OpSonal) Screw, 10-32 x 1/2" Replacement F_.ng_ NONE Replaceme_ ShortBlock 750791C, orderfrom71-999 RPM I-r_igh 2900to3_00 NOTE: Thisenginecouidhavebeenbuiltwith5907(_ starter. NOllE: Ail component dlmensJom givonin U.S.inches I Inch=25A mm 41 CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996710 14A 147 I I KEY NO. 1 5 6 7 14A 25 27 28 29 030 32 33 36 37 37A 38 38A 39 40 47 PART NO. DESCRIPTION Carburetor (Incl. 187B & 239 of Engine Parts List) Throttle Shaft & Lever Asssmbly Duet Seal Throttle Shutter Throttle Shutter Screw Venturi Float Bowl Float Shaft Float Float Bowl to Body Gasket Inlet Needle & Seat Bowl Drain Screw Bowl Drain Washer Main Nozzle Tube "O" Ring "O" Ring, Main Nozzle Tube Spring, Main Nozzle Tube Spring Float Bowl Retainer Main Fuel Jet Welch Plug, Idle Mixing Well _2_9 632593 _2_1 650506 _2773 _75A _2544 632543 632548 _2_9 _72 _2_3 _2_7 _2_7 632545 _2_5 _2_9 640021 632554 42 CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.996710 -- 11 KEY NO. 1 2 3 4 5 6 7 8 PART NO. 590702 590599A 59O600 590696 590601 590697 590698 590699 590700 11 590703 12 590535 13 590701 DESCRIPTION Recoil Starter Spdng Pin (Incl. 4) Washer Retainer Washer Brake Spdng Starter Dog Dog Spdng Pulley & Rewind Spring Ass'y. Starter Housing Ass'y. (40 degree grommet) Starter Rope ( 98" X 9/ 64' dia.) Starter Handle V--14 KEY NO. ---- 0 !11 I! -7 43 PART NO. 3 6 7 8 590739 590740 590616 590617 590618A 11 590638 12 590535 13 14 590701 590760 DESCRIPTION Rewind Starter Retainer Starter DOg Dog Spdog Pulley & Rewind Spdng Ass'y Starter Housing Ass'y (40 degree grommet) Starter Rope (Length 98" x 9/64" dia.) Starter Handle Spring Clip For in-home major brand repair service: Call 24 hours a day, 7 days a week 1-800-4-MY-Home sM(1-800-469-4663) Para pedir servicio de reparaci6n 1-800-676-5811 a dornicilio In Canada for all your service and parts needs call Au Canada pour tout le service ou les pi_ces 1-800-665-4455 For the repair or replacement parts you need: Call 6 am-11 pm CST, 7 days a week PartsDirect 1-800-366-PART sM (1-800-366-7278) Para ordenar piezas con entrega a domicilio 1-800-659-7084 For the location of a Sears Parts and RepairCenter in your area: Call 24 Hours a day, 7 days a week 1-800-488-1222 For information on purchasing a Sears Maintenance Agreement or to inquire about an existing Agreement: Call 9 am-5 pro, Monday - Saturday 1-800-827-6655 69206 REV.2 05.03.99 VB Printed in U.S.A.