Owner's Manual CRAFTSMAN + 3.5 HORSEPOWER 20" SIDE DISCHARGE ROTARY LAWN MOWER Model No. 917.387205 • • • • • • Safety Assembly Operatio n Maintenance Espa_ol Repair Parts CAUTION: Read and follow all Safety Rules and Instruct_o£sll before operating this equipment Sears, Roebuck and Co., Hoffman Estates, IL 60179 Visit our Craftsman website: www.sears.com/craftsman k Warranty Safety Rules Assembly Operation Maintenance Schedule Maintenance LIMITED ONE YEAR WARRANTY 2 2 4 5 8 8 Product Specifications Service and Adjustments Storage Troubleshooting Repair Parts Parts Ordering ON CRAFTSMAN POWER 9 11 12 13 30 BackCover MOWER For one year 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 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, ROEBUCKAND CO., D/817 WA, HOFFMAN ESTATES, ILLINOI S 60179 Safety standards require operator presence controls to minimize the risk of injury. Your unit is equipped with such controls. Do not attempt to defeat the function of the operator presence controls under any circumstances. • 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. TRAINING: • Read this operator's manual carefully. Become familiar with the controls and know how to operate your mower propedy. Learn how to quickly stop mower. • Do not allow children to use your mower. Never allow adults to us e 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. 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. 2 • Dross properly. Do not operate mower when barefoot or wearing open sandals. Wear only solid shoes with good traction when mowing. • 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 oqly in daylight or good artificial light. • 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. Usa caution when " operating the 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. MAINTENANCE AND STORAGE: • 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. OPERATION: • 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. • Keep all safety devices in place and working. • To reduce fire 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 • 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--coverod 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. 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 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. ACAUTION: 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 • Do not change the govemor 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 fumes are dangerous. California to cause cancer, birth defects, or other reproductive harm. 3 These accessories 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 rel:;air pads 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 CLIPPING DEFLECTOR FOR REAR DISCHARGE LAWN MOWERS MULCHER KITS STABILIZER FOR SIDE DISCHARGE GRASS LAWN CATCHERS MOWERS FOR REAR DISCHARGE GRASS LAWN CATCHERS MOWERS GAS CANS LAWN MOWER MAINTENANCE BELTS BLADES BLADE ADAPTERS enSrety before you attempt to assemble or operate your new lawn mower. Your new lawn mower has been assembled at the factory with the exception of those parts left unassernbled for shipping purposes. All parts such as nuts, washers, bolts, etc., necessary to complete the assembly have been placed in the parts bag. 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. LAWN MOWER WHEELS ENGINE OIL • Rolllawn moweroutof cartonand check cartonthorouglyfor additionallooseparts. Read these instructions and this manual in its TO REMOVE SPARK PLUGS AIR FILTERS MUFFLERS HOW TO SET UP YOUR LAWN MOWER TO UNFOLD HANDLE IMPORTANT: Unfold handle carefully so as not to pinch or damage contrel cables. • Raise handles until lower handle section locks into-place in mowing _. • Remove protective padding, raise upper handle section into place on lower handle end tighten both handle knobs. • Remove handle padding holding operator presence control bar to upper handle. ° Your lawn mower handle can be adjusted for your mowing comforL Refer to "Adjust Handle" in the Service end Adjustment section of this manual. FROM CARTON • Remove loose pads included with mower. • Cut down two end comers of carton end lay end panel down flaL • Remove all packrng materials except padding between upper and lower handle end padding holding operator presence control bar to upper handle, 4 OF Upper handle Lift up Mowing position Lower handle KNOW YOUR LAWN MOWER READ THIS OWNER'S MANUALAND MOWER. SAFETY RULES BEFORE OPERATING YOUR LAWN Compare the illustrations with your lawn mower to familiarize yourself with the location of various controls andadiustments. Save this manual for future reference. These symbols may appear on your lawn mower or in literature supplied with the product. Leam and understand their meaning. CAUTI(_N ENGINE CR WARNING ON ENGINE OFF FAST SLOW CHOKE FUEL OIL DANGER.KEEP HANDS AND FEET AWAY Operator presence control bar Engine zone control cable Handle knob Gasoline filler cap Engine oil filler plug Air filter Discharge guard Wheel adjuster (on each wheel) vlEETS CPSC SAFETY REQUIREMENTS ;ears rotary walk-behind power lawn mowers conform to the safety standards of the \merican National Standards Institute and the U.S. Consumer Product Safety Commis;ion. The blade turns when the engine is running. )perator presence control bar- must be _elddown to the handle to start the engine. lelease 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. 5 BEFORE STARTING The operation of any lawn mower can result in foreign objects thrown into the 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 YOUR LAWN MOWER Your lawn mower is shipped without oil in the engine. • Be sure mower is level and area around oil fill is clean. • Remove engine oil cap 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. ENGINE SPEED The engine speed was sat at the factory for optimum performance. Speed is not adjustable. ENGINE ZONE CONTROL • Pour oil slowly. Do not over fill. • 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. • 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 : ACAUTION: 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 circumstances 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 and = 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 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. operate the lawn mower. TO ADJUST CU'I'rlNG ENGINE OIL HEIGHT • Raise wheels for low cut and lower wheeis for high cut. • Adjust cutting height to suit your requirements. Medium pes'_on is best for most lawns. • 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, 9position adjusters (if so equipped) allow lever to be positioned between the plate tabs. Raise wheels for low cut Gasoline filler cap Lower wheels for high cut Plate tab Oil filler plug 6 ......... 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. • To STOP engine, release operator presence control bar. NOTE: In cooler weather it may be necessary to repeat priming steps. In warmer weather over priming may cause flooding and engine will not start. If you do flood engine wait a few minutes before attempting to start and DO NOT repeat priming steps. MOWING TIPS • Under certain conditions, such as very tal} 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. • 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. • 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 catcher 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. 7 FI , O,TE AS YOU COMPLETE Check for Loose Fasteners Clean/Inspect Grass Catcher (If Equipped) M VICED_-_ ATES _f if Clean Lawn Mower O , (Power-Propellnd Clean Under DriveMowers) Cover Check drive belt/pulleys I/ i/ RE (Power-Propelled Mowers) Check/Sharpen/Replace Blade Lubrication Chart E (Electric Start Mowers ! Clean Battery/Recharge Ched_ En_line Oil Level N ChangeEngineOil G Clean Air FiNer I Inspect Muffler N oaan E Replace Air Filter Paper Cartddge 12 3. 4. v' =/ =/ i/, t/l,_ or Replace Spark Plug I/= Change I_Xe often when op_aling under a heaW- load or in high arnbientte_oeratums. SerAce rr_e often when operat_tg in dirlyor dusly oolldi_ons. Replace bladea more oRenwh_ mo_ng in undy zoiL Chazge 48 hou_ at ond of season. GENERAL RECOMMENDATIONS LUBRICATION Wheel adjuster 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. CHART (_ Engine oil (_ • Once a year, replace the spark plug, clean or replace air filter element and check blade for wear. A new spark plug and clean/new air filter element assures (_ Handle bracket mounting pin proper air-fuel mixture and helps your engine run better and last longer. • Follow the maintenance schedule in this manual. BEFORE EACH USE _ Brake spdng (_) Discharge bracket guard hinge pin Refer tolubdcam Spray MAINTENANCE "ENGINE" section. IMPORTANT: Do not oil or grease plastic wheel bearings. Viscous lubricants will attract dust and dirt that will shorten the life • Check engine oil level. • Check for loose fasteners. LUBRICATION of the serf-lubricating bearings. If you feel they must be lubricated, use only a dry, powered graphite type lubricant sparingly. Keep unit well lubricated (See "LUBRICATION CHART"). - 8 PRODUCT SPECIFICATIONS MODEL NUMBER ;ERIAL 917.387205 NUMBER DATE OF PURCHASE HORSEPOWER: 3.5 DISPLACEMENT: 9.05CU. GASOLINE 1.25 QUARTS CAPACITY/TYPE: IN. UNLEADED OIL TYPE (API-SF/SG/SH): REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 :(BELOW 32°F) OIL CAPACITY: SPARK PLUG(GAP: 20 OZS. .030") VALVE CLEARANCE: CHAMPION RJ19LM OR J19LM INTAKE: .004 - .008 EXHAUST: .004 - .008 SOLID STATE IGNITION AIR GAP: .0125 IN. BLADE 35-40 FT. LBS. BOLT TORQUE: • 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 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. BLADE CARE For best results, mower blade must be kept sharp. Replace bent or damaged blades. TO REMOVE BLADE • 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 • 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 lawn mower housing and tighten the mower housing to prevent blade from blade bolt, turning clockwise. turning when removing blade bolt. • The recommended tightening torque is • Protect your hands with gloves and/or 35-40 ft. Ibs. wrap blade with heavy cloth. IMPORTANT: Blade bolt is grade 8 • Remove blade bolt by turning counter9 heat treated. clockwise. TO SHARPENBLADE SAE VISCOSITY GRADES 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. tf blade is balanced, it should remain in a hodzontal position. If either end of the blade moves downward, sharpen the heavy end until the blade is balanced.• The recommended tightening torque is 35-40 ft. Ibs. Blade adapter_., Crankshaft keyway Key Crankshaft Blade bolt Lock washer GRASS edge Hardened washer Blade adapter NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, these multi-viscosity oils win 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. Change the oil after even/25 hours of operation or at least once a year ifthe lawn mower is not used for 25 hours in one year. Check the crankcase oil level before starting the engine and after each five (5) hours of continuous use. T'_Jhten oil plug securely each time you check the oil level. TO CHANGE ENGINE OIL • Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug. • Be sure lawn mower is on level surface. • • • • Oil will drain more freely when warm. Catch oil in a suitable container. Remove bottom oil drain plug. After oil has drained completely, replace oil drain plug and tighten securely, • Refill engine with oil. Pour slowly. Do not over fill. • Fill to top of slot inside of filler hole. • Reconnect spark plug wire to spark plug. CATCHER (If purchased as an accesssory) • 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 ordering. ENGINE LUBRICATION Use only high quality detergent oil rated with API service classif'_,ationSF, SG or SH. Select the oil's SAE viscosity grade according to your expected operating terr_erature. Drain plug AIR RLTER 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 CLEAN AIR FILTER • Remove the air filter by tuming counterclockwise to the stop and pull away from collar. • Remove filter from inside of cover. • Clean the inside of the cover and the collar 10 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 turn clockv_se to tighten. Collar Turn counterremove Slot Air filter clockwise Tab Air filter cover to tighten MUFFLER Inspect and replace corroded muffler as it could create a fire hazard and/or damage. SPARK PLUG CLEANING IMPORTANT: For best performance, keep mower housing free of built-up grass and trash. Clean the underside of your mower after each use. ACAUTION: Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with the spark plug. • Turn 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. Change your spark plug each year to make your engine start easier and run better. Set spark plug gap at .030 inch. ACAUTION: BEFORE PERFORMINGANY SERVICE OR ADJUSTMENTS: • 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. LAWN MOWER TO ADJUST cu'n'ING HEIGHT See 'qO ADJUST CUI-I-ING HEIGHT" in the Operation section of this manual. REAR DEFLECTOR The rear deflector, attached between the rear wheels of your mower, is provided to minimize the possibility that objects will be thrown out of the rear of the mower into the operator mowing position. If the deflector becomes damaged, it should be replaced. DISCHARGE GUARD The d=scharge guard attached to the discharge opening of your lawn mower, is provided to prevent the possibility of injury resulting from objects being thrown out of the discharge opening into the operator mowing pos_ion. Ifthe discharge guard becomes damaged, it should be replaced. TO ADJUST HANDLE Your lawn mower handle can be raised or lowered for your mowincl comfort. Four (4) positions are available: high, medium high, medium low and low. Handles are shipped mounted in the medium low position. • To change from medium low to medium high position, the upper and lower handle sections will have to be turned over. • Remove the cat_le clips. • 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. • Turn the handle over and reassemble the hairpin cotters that have been removed. • Reassemble • Reassemble the starter rope guide. 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 overtighten the fasteners holding the controls to the upper handle. 11 • To change from medium low to high position only the upper handle section will have to be turned over. • To change from medium low to low position, only the lower handle section will have to be turned over. Shipping Position _Medium low Medium ENGINE CARBURETOR Your carburetor 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 for repair and adjustment. IMPORTANT: Never tamper with the engine governor, which is factory set for proper engine speed. Overspeeding the engine above the factory high speed setting can be dangerous, if you think the engine-governed high speed needs a_ljusting, contact your nearest AUTHORIZED service center, which has proper equipment and experience to make any necessary adjustments. ENGINE SPEED High Low Lower handle Handle bracket The engine speed has been factory set. Do not attempt to increase engine speed as it may result in personal injury. If you believe the engine is running too fast ortoo slow, take your lawn mower to an authorized service center for repair and adjustment. Squeeze to remove Hairpin clip Mountin_O pin • Squeeze the bottom ends of the lower handle toward each other until the lower handle clears the handle bracket, then move handle forward. Immediately prepare your lawn mower for storage at the end of the season or ifthe unit will not be used for 30 days or more. LAWN MOWER • Loosen upper handle mounting belts 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. When lawn mower is to be stored for a period of time, dean itthoroughly, 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. • When setting up your handle from the storage position, the lower handle will automatically lock into the mowing position. • Be sure that all nuts, belts, 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; sandT_jhtly before painting. HANDLE Squeeze tofold I pin You can fold your lawn mower handle for storage. 1; Hairpin cotter Fold backward Operator presence control bar Upper handle _ Fold forward for storage _ _ ENGINE OIL K-- _ container. Run engine at least 10 minutes after adding stabilizer to allow the stabilizer to roach the carburetor. Do not drain the gas tank and carburetor if using fuel stabilizer. '_,;¢_ Mowing position Lower handle 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 while in storage. • Drain the fuel tank. • Start the engine and let it run until the fuel lines and carburetor are empty. • Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur. • Use fresh fuel next season. Drain oil (w'rthengine warm) and replace with clean engine oil. (See "ENGINE" in the Maintenance section of this manual). CYUNDER • Remove spark plug. • Pour one ounce (29 ml) of oilthroughspark plugholeintocylinder. • Pullstarterhandleslowlya few timesto :d'_ributeoil. • Replacewith new spark plug. OTHER • Do 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. • If possible, store your unit indoors and cover it to give protection from dust and dirL • Cover your unit with a suitable protective cover that does not rotaln mokture. Do not use plastic. Plastic cannot breathe which allows condensation to form and will cause your unit to rust. IMPORTANT: Never cover mower while engine and exhaust areas are stillwarm. ACAUTION: Never storo the lawn mower 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 TROUBLESHOOTING CHART PROBLEM Does n_stad 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. CAUSE CORRECTION • Dirty air filter. • Out of fuel, • Stale fuel. • Clean/replace air filter. • Fill fuel tank. • Drain tank and refillwith • Water in fuel. flash clean fuel. • Drain fuel tank and carburetor and refill tank with fresh gasoline. • Connect wire to plug. • Spark plug wire is disconnected. • Bad spark plug. • Loose blade or broken blade adapter. • Control bar in released position. • Control bar defective. 13 • Replace spark plug. • lighten blade bolt or replace blade adapter. • Depress control bar to handle. • Replace control bar. TROUBLESHOOTING PROBLEM Loss of power CHART CAUSE CORRECTION • Rear of lawn mower housing or cutting blade dragging in heavy grass. • Set to =Higher Cut" position. • Cutting too much grass. • Set to"Higher Cut" position. • Dirty air filter. • Buildup of grass, leaves, and trash under mower. • Clean/replace air filter. • Clean underside of mower • Too much oil in engine. • Walking speed too fast housing. • Checkoil level. • Cut at slower walking speed. 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. • Replace blade. 13ghten blade belt. • Set all wheels at same height • Clean underside of mower housing. • Replace blade. Fighten blade belt. • Contact an authorized service center. Starter rope hard to pull • Engine flywheel brake is on when control bar is released. • Depress control bar to upper handle before • Bent engine crankshaft. pulling starter rope. • Contact an authorized service center. • Blade adapter broken. • Blade dragging in grass. • Replace blade adapter. • Move lawn mower to cut grass orto hard surface to start engine. Grass catcher not filling (if so equipped) • Cuffing height too low. • Lift on blade worn off. • Raise cutting height. • Replace blade. • Catcher not venting air. • Clean grass catcher. Hard to push • 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 position not right for you. 14 • Raise rear of lawn mower housing one (1) set'dng higher. • Empty grass catcher. • Adjust handle height to suit. 29 3O l in- . <0 nz xxx x xoxx ,>i,, d _z 31 x X .?,RAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.993512 O-370K 370C 400 110_ 135 13o 101 12O 120 277_ 46 182 , 185 178 72 32 CRAFTSMAN KEY NO. PART NO. 1 37280 2 6 7 26727 33734 36557 12 12A 36775 36558 12B 14 15 16 17 18 36694 28277 30689 34839A 31335. 651018 19 20 30 40 36281 32600 36793 35544A 35545A 35546 41 35541 35542 35543 42 43 35547A 35548A 36549 20381 45 36777 46 48 50 52 69 70 32610A 27241 37032 29914 35261 32612C 72 75 80 81 82 36083 27897 30574A 30590A 30591 83 86 89 90 92 83 100 101 103 30588A 653488 611004 611112 650815 660816 34443B 610118 681007 110 37047 4-CYCLE ENGINE DESCRIPTION Cylinder (Incl. 2,20 & 150) Dowel Pin Breather Element Breather Ass'y, (Incl. 6 & 12A) Breather Tube Breather Cover & Tube (Incl. 12B) Breather Tube Elbew Washer Governor Rod (Incl. 14) Governor Lever Governor Lever Clamp Screw, Torx T-15. 8-32 x 19/34" Extension Spring Oil Seal Crenkshaft Piston, Pin & Ring Set (Std.) Piston, Pin & Ring Set (.010" OS) Piston. Pin & Ring Set (.020" OS) Piston & Pie Ass'y. (Std.) (Incl. 43) Piston & Pin Ass'y. (.010 • OS) (Incl. 43) Piston & Pin Ass'y. (.020" OS) (Incl. 43) Ring Set (Std.) Ring Sat (.010" OS) Ring Sat (.020 OS) Piston Pin Retaining Ring Connecting Rod Ass'y. (Incl. 46} Connecting Rod Bolt Valve Ufter Camshaft (NCR) Oil Pump Ass'y. * Mounting Flange Gasket Mounting Flange (Incl. 72 thru 83) Oil Drain Plug Oil Seal Governor Shaft Washer Governor Gear Ass'y. (Incl. 81) Governor Spool Screw, 1/4-20 x 1-1/4" Flywheel Key Flywheel Belleville Washer Fl'jwheeI Nut Solid State Ignition Spark Plug Cover Screw. Torx T-15, 10-24 x 15/16" Ground Wire MODEL NUMBER 143.993512 KEY NO; PART NO, 119 120 125 37028 36825 37288 126 37289 130 135 6021A 35395 150 151 151A 169 172 174 178 31672 31673 40017 36783 36784 30200 29752 182 184 6201 26756 185 186 189 191 36785 32653 650839 36559A 195 207 216 223 224 238 239 241 245 250 260 261 262 275 277 285 287 290 292 300 610973 34336 33086 650451 36786 650932 34338 35797 35066 35065 36834 30200 650831 36790A 650988 35000A 650926 34357 26460 35586 301 311 313 370A 370C 3701( 380 390 400 36246 27625 34080 36261 37199 36695 640174 590737 37029A 416 36085 417 650821 900 900 DESCRIPTION * Cylinder Head Gasket Cylinder Head Exhaust Valve (Std.) (Incl. 151) Intake Valve (Std.) (Incl. 151) Screw, 5/16-18 x 1-1/2" Resistor Spark Plug (RJ19LM) Valve Spring Valve SpringCap Intake Valve Seal * Valve Cover Gasket Valve Cover Screw, 10-24 x 9/16" Nut & LockWasher, 1/428 Screw. I/4-28 x 7/8" • Carburetor To Intake Pipe Gasket Intake Pipe Governor Lir_k Screw, 114-20 x 3/8" S.E. Brake Bracket (Incl. 195) Terminal Throttle Link R.P.M. AdjustingLever Screw, 1/4-20 x 1" * Intake Pipe Gasket Screw, 10-32 x 49164" * Air Cleaner Gasket Air Cteaner Collar Air Cleaner Filter Air Cleaner Cover Blower Housing Screw, 10-24 x 9/16" Screw, 1/4-20 x 1/2" Muffler Screw, 1/4-20 x 2-5/16" Starter Cap Screw, 8-32 x 21164' Fuel Line Fuel Line Clamp Fuel Tank (Incl. 292 & 301) Fuel Cap Oil Fill Plug Spacer LubricationDecal Pdmer Decal Starter Decat Carburetor (Incl. 184) Rewind Starter Gasket Set (Incl. Items Marked ") Spark ArrestorKit (IncL 417)(Optional) Screw, 10-32 x 1/2" (Optional) Replacement Engine 750830, orderfrom 71999 Replacement Short Block 750829A, order from 71-999 RPM High 2900 to 3200 NOTE: Allcomponent dimensionsgiven in U.S. inches 331 inch = 25.4 mm CRAFTSMAN 4-CYCLE ENGINE KEY NO. PART NO. ---- 640174 631615 631767 631184 631183 640070 650506 631807 651025 630766 640018 640053 631867 631024 632O19 631028 631021 631022 36045A 640080 632766 632547 640175 27110A 630748 631027 631027 632760 1 2 4 5 6 7 16 17 18 20 20A 25 27 28 29 30 31 35 36 36A 37 40 44 47 48 48A 60 MODEL NUMBER 143.993512 DESCRIPTION Carburetor (Incl. 184 of Engine Parts List) Throttle Shaft & Lever Assembly Throttlo Return Spring * Dust Seal Washer • Dust Seal ('Throttle) Throttle Shutter • Shutter Screw Fuel Fitting Throttle Crack Screw/Idle Speed Screw Tension Spring Idle Restrictor Screw Idle RestrlotorScrew Cap Float Bowl • Float Shaft Float * Float Bowl "O" Ring • Inlet Needle, Seat, & Clip (Incl. 31) Spring Clip Primer Bulb/Retainer Ring Main Nozzle Tube Carburetor Tube * "O" Ring, Main Nozzle Tube High Speed Bowl Nut BOwl Nut Washer * Welch Plug, Idle MixtureWell • Welch Plug, Atmospheric Vent • Welch Plug Repair kit (Incl. Items Marked •) 34 CRAFTSMAN 4-CYCLE ENGINE MODEL NUMBER 143.993512 KEY NO. DESCRIPTION 1 2 3 4 5 6 7 8 590694 590599A 5906OO 590696 590601 590697 59O698 59O699 590700 11 590695 12 590535 13 590701 Recoil Starter Spring Pin (Incl. 4) Washer Retainer Washer Brake Spring Starter Dog Dog Spring Pulley & Rewind Spring Ass'y. Starter Housing Ass'y. (40 degree grommet) Starter Rope ( 98 = X 9/ 64" dia,) Starter Handle KEY NO. PART NO. DESCRIPTION --D 3 6 7 8 59O737 59O74O 590616 590617 590618A 11 590687A 12 590535 13 14 590701 590760 D__ 13 B PART NO. 5 Qm2 J]-, film7 35 Rewind Starter Retainer Starter Dog Dog Spring Pulley & Rewind Spring ASS'y Starter Housing Ass'y (40 degree grommet) Starter Rope (Length 98" x 9164' dia.) Starter Handle Spring Clip Forthe repairor replacementparts youneed delivereddirectlyto yourhome Call 7 am - 7 pm,7 daysa week 1-800-366-PART (1-800-366-7278) Para ordenar piezas con entrega domicilio - 1-800-659-7084 a 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 1-800-488-1222 mmmm mmmmmm For information on purchasing a Sears Maintenance Agreement or to inquire about an existing Agreement Call 9 am - 5 pm, Monday-Saturday ! -800-827-6655 When requesting service or ordering parts, always provide the following information: • Product Tyge • Part Number • Model Number • Part Description SEARS America's Repair Specialists 168861 01.13.99 VB Printedin U.S.A.