Owner's Manual I CRAFT.TMAWI 6.75 HORSEPOWER 21" REAR DISCHARGE POWER PROPELLED ROTARY LAWN MOWER Model No. 917.378410 • • • • 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 Visit our Craftsman website: www.sears.condcraftsman Warranty ............................................... 2 Safety Rules ......................................... 2 Assembly .............................................. 5 Operation .............................................. 6 Maintenance Schedule ...................... "t0 Maintenance ....................................... 10 LIMITED TWO YEAR WARRANTY Product Specifications........................ 11 Service and Adjustments .................... 13 Storage ............................................... 14 Troubleshooting ................................. 16 Repair Parts ........................................ 35 Parts Ordering ..................... Back Cover 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 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 dghts, and you may also have other rights which vary from state to state. Sears, Roebuck and Co., D/617 WA, Hoffman Estates, Illinois 60179 IMPORTANT: This cutting machine is capable of amputating hands and feet and throwing objects. Failure to observe the following safety instructions could result in serious injury or death. Be sure the area is clear of other I.GENERAL OPERATION people before mowing. Stop machine if • Read, understand, and follow all anyone enters the area. instructions on the machine and in the manual(s) before starting. Be thor° Do not operate the mower when barefoot or wearing open sandals. oughly familiar with the controls and Always wear substantial foot wear. the proper use of the machine before Do not pull mower backwards unless starting. absolutely necessary. Always look • Do not put hands or feet near or under down and behind before and while rotating parts. Keep clear of the moving backwards. discharge opening at all times. Do not operate the mower without • Only allow responsible individuals, proper guards, plates, grass catcher or who are familiar with the instructions,to other safety protective devices in place. operate the machine. See manufacturer's instructions for • Clear the area of objects such as proper operation and installation of rocks, toys, wire, bones, sticks, etc., accessories. Only use accessories which could be picked up and thrown approved by the manufacturer. by the blade. 2 • Stopthe • • • • • blade(s) when crossing gravel drives, walks, or roads. Stop the engine (motor) whenever you leave the equipment, before cleaning the mower or unclogging the chute. Shut the engine (motor) off and wait until the blade comes to complete stop before removing grass catcher. Mow only in daylight or good artificial light. Do not operate the machine while under the influence of alcohol or drugs. Never operate machine in wet grass. Always be sure of your footing: keep a firm hold on the handle and walk; never run. • Disengage the self-propelled mechanism or drive clutch on mowers so equipped before starting the engine (motor). • If the equipment should start to vibrate abnormally, stop the engine (motor) and check immediately for the cause. Vibration is generally a warning of trouble. • Always wear safety goggles or safety glasses with side shields when operating mower. II. SLOPE OPERATION Slopes are a major factor related to slip and fall accidents which can result in severe injury. AII slopes require extra caution. If you feel uneasy on a slope, do not mow it. DO: • Mow across the face of slopes: never up and down. Exercise extreme caution when changing direction on slopes. • Remove obstacles such as rocks, tree limbs, etc. • Watch for holes, ruts, or bumps. Tall grass can hide obstacles. DO NOT: • Do not trim near drop-offs, ditches or embankments. The operator could lose footing or balance. • Do not trim excessively steep slopes. • Do not mow on wet grass. Reduced footing could cause slipping, II1. CHILDREN • Be alert and turn machine off if children enter the area. • Before and while walking backwards, look behind and down for small children. • Never allow children to operate the machine. • Use extra care when approaching blind corners, shrubs, trees, or other objects that may obscure vision. IV. SERVICE • Use extra care in handling gasoline and other fuers. They are flammable and vapors are explosive. -Use only an approved container. - Never remove gas cap or add fuel with the engine running. Allow engine to cool before refueling, Do not smoke. -Never refuel the machine indoors. -Never store the machine or fuel container inside where there is an open flame, such as a water heater. • Never run a machine inside a closed area. • Never make adjustments or repairs with the engine (motor) running. Disconnect the spark plug wire, and keep the wire away from the plug to prevent accidental starting. • Keep nuts and bolts, especially blade attachment bolts, tight and keep equipment in good condition. • Never tamper with safety devices. Check their proper operation regularly. • Keep machine free of grass, leaves, or other debris build-up. Clean oil or fuel spillage. Allow machine to cool before storing. • Stop and inspect the equipment if you strike an object. Repair, if necessary, before restarting. • Never attempt to make wheel height adjustments while the engine (motor) is running. • Grass catcher components are subject to wear, damage, and deterioration, which could expose moving parts or allow objects to be thrown. Frequently check components and replace with manufacturer's recommended parts, when necessary. • Mower blades are sharp and can cut. Wrap the blade(s) or wear gloves, and use extra caution when servicing them. • Do not change the engine governor setting or overspeed the engine. Tragic accidents can occur if the operator is not alert to the presence of children. Children are often attracted to the machine and the mowing activity. Never assume that children will remain where you last saw them. • Keep children out of the trimming area and under the watchful care of another responsible adult. 3 _ILook for this symbol to point out important safety precautions. It means CAUTION!!! BECOMEALERT!H YOUR SAFETY IS INVOLVED. _. CAUTION: In order to prevent accidental starting when setting up, transporting, adjusting or making repairs, always disconnect spark plug wire and place wire where it cannot contact spark plug. AWARNING: Engine exhaust, some of its constituents, and certain vehicle components contain or emit chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. _,WARNING: Battery posts, terminals and related accessories contain lead and lead compounds, chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. A CAUTION: Muffler and other engine parts become extremely hot during operation and remain hot after engine has stopped. To avoid severe burns on contact, stay away from these areas. These accessories were available when this lawn mower was produced. They are not shipped with your mower. 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 CLIPPING DEFLECTOR FOR REAR DISCHARGE \ LAWN MOWERS MULCHER GRASS CATCHERS FOR SIDE DISCHARGE LAWNMOWERS FOR REAR DISCHARGE _ KITS GRASS LAWN CATCHERS MOWERS STABILIZER I _ I Ill I _ I GAS CANS LAWN MOWER MAINTENANCE MUFFLERS AIR FILTERS SPARK PLUGS t_, _1 I BELTS BLADES BLADE ADAPTERS 4 WHEELS ENGINE OIL Read these instructions and this manual in 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 assembled at the factory with the exception of those parts left unassembled 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. TO REMOVE LAWN MOWER FROM CARTON 1. Remove loose parts included with mower. 2. Cut down two end corners of carton and lay end panel down flat, 3. Remove all packing materials except padding between upper and lower handle and padding holding operator presence control bar to upper handle. 4. Roll lawn mower out of carton and check carton thorougly for additional loose parts, HOWTO SET UPYOUR LAWN MOWER TO UNFOLD HANDLE IMPORTANT: Unfold handle carefully so as not to pinch or damage control cables. 1. Raise handles until lower handle section rocks into place in mowing position. 2. Remove protective padding, raise upper handle section into place on lower handle and tighten both handle knobs. 3. Remove handle padding holding operator presence control bar to upper handle. Your lawn mower handle can be adjusted for your mowing comfort. Refer to "Adjust Handle" in the Service and Adjustments section of this manual. OP_r'a;°braPresence _'_Lift Upperhandle-_ •.o0 u[_) _" /#" Lower handle 5 KNOWYOUR LAWN MOWER READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER. Compare the illustrationswith your lawn mower to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference. These symbols may appear on your lawn mower or in literature supplied with the product, Learn and understand their meaning. CAUTION OR WANNING ENGINE ON ENGINE OFF FAST SLOW CHOKE FUEL OIL DANGER, KEEP HANDS AND FEET AWAY _perator presence control bar Starter handle Ddve control lever knob Gasoline cap Grass Housing Engine oil ca[ Drive cover IMPORTANT: This lawn mower is shipped WITHOUT OIL OR GASOLINE in the engine. Wheeladjuster(on eachwheel) MEETS CPSC SAFETY REQUIREMENTS Sears rotary walk-behind power lawn mowers conform to the safety standards of the Amedcan National Standards Institute and the U.S. Consumer Product Safety Commission. The blade turns when the engine is running. 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 use when starting a cold engine, Starter handle - used for starting the engine. Drive control lever - used to engage power-propelled forward motion of lawn mower. 6 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, HOWTO USEYOUR LAWN MOWER ENGINE SPEED TO CONVERT MOWER Yourlawn mower was shippedreadyto be usedas a mulcher. To convertto bagging: REAR BAGGING • Liftrear door ofthe lawnmower and place the grasscatcherframe hooks ontothe door pivotpins. • To convertto mulchingoperation,remove grasscatcher and closerear door. _,CAUTION: Do not run your lawn mower without clipping deflector or approved grass catcher in place, Never attempt to operate the lawn mower with the rear door removed or propped open. Pivot Grass catcher handle The engine speed was set at the factory for optimum performance. Speed is not adjustable. ENGINE ZONE CONTROL A_.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 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 operate the lawn mower. TO ADJUST CUTTING HEIGHT Raise wheels for low cut and lower wheels for high cut, adjust cutting height to suit your requirements. Medium position 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, 9-position adjusters (if so equipped) allow lever to be positioned between the plate tabs. PlateTab Lower Wheelsfor High Cut _ / Catcher frame hool TO EMPTY GRASS CATCHER 1. Open door and lift up on grass catcher using the frame handle. 2. Remove grass catcher with clippings from under lawn mower handle. 3. Empty clippings from bag using both frame handle and bag handle. NOTE: Do not drag the bag when emptying; it will cause unnecessary wear. Bag handle ,,rib. Lever RaiseWheelsfor Low Cut 7 catcher frame handle DRIVE CONTROL • 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 releasing 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 ddve control disengages. Hold operator presence control bar down against handle to continue mowing without self-propelling. • To keep drive control engaged when turning comers, push down on handle and lift front wheels off ground while turning lawn mower. Operatorpresence controlbar Drive t control AWARNING: 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 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. _, CAUTION: Fill to bottom of gas tank filler neck. Do not oven311.Wipe off any spilled oil or fuel Do not store, spill or use gasoline near an open flame. Engine oil cap Gasoline filler cap _k_ TOengage _._ Drive control "" dn_/econtrol "" disengaged BEFORE STARTING ENGINE ADD OIL Your lawnmower is shipped without oil in the engine. Engine holds 20 oz. of oil. For type and grade of oil to use, see "ENGINE" in Maintenance section of this manual. 1. Be sure lawnmower is level and area around oil fill is clean. 2. Remove engine oil cap and fillto the full line on the dipstick. Pour oil slowly. Do not over fill. NOTE: Allow oil to settle down into engine for accurate reading. To read proper level, tighten engine oil cap, then remove it to read the dipstick. 3. Reinstall engine oil cap and tighten. • Check oil level before each use. Add oil if needed. Fill to full line on dipstick. • 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. ADD GASOLINE • Fill fuel tank. Use fresh, clean, regular unleaded gasoline with a minimum of 87 octane. Do not mix oil with gaso* line. Purchase fuel in quantities that can be used within 30 days to assure fuel freshness. TO START ENGINE NOTE: Due to protective coatings on the engine, a small amount of smoke may be present dunng the initial use of the product and should be considered normal. 1. 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 alraady run for a few minutes. 2. 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 • 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. MOWlNGTIPS • Under certain conditions, suchasvery tallgrass, it may be necessary to raise MULCHING MOWINGTIPS IMPORTANT: For best performance, keep mower housing free of built-up grass and trash. See "Cleaning" Ln the height of cut to reduce pushing Maintenance section of this manual. effort and to keep from overloading the • The special mulching blade will recut engine and leaving clumps of grass the grass clippings many times and clLppings. It may also be necessary to reduce them in size so that as they fall reduce ground speed and/or run the onto the lawn they will disperse into the lawn mower over the area a second grass end not be noticed. Also, the time. mulched grass wilt biodegrade quickly • For extremely heavy cutting, reduce the to provide nutrients for the lawn. width of cut by overlapping previously Always mulch with your highest engine cut path and mow slowly. (blade) speed as this will provide the • For better grass bagging and most best recutting action of the blades. cutting conditions, the engine speed should be set in the fast position. • Avoid cutting your lawn when it is wet. Wet grass tends to form clumps and • When using a rear discharge lawn interferes with the mulching action. mower in moist, heavy grass, clumps of The best time to mow your lawn is the cut grass may not enter the grass early afternoon. At this time the grass catcher. Reduce ground speed has dried and the newly cut area will (pushing speed) and/or run the lawn not be exposed to the direct sun. mower over the area a second time. • For best results, adjust the lawn mower • If a trail of clippings is left on the right cutting height so that the lawn mower side of a rear discharge mower, mow in a clockwise direction with a small cuts off only the top one-third of the grass blades. If the lawn is overgrown overlap to collect the clippings on the it will be necessary to raise the height next pass. of cut to reduoe pushing effort and to • Pores in cloth grass catchers can become filled with dirt and dust with use keep from overloading the engine and leaving clumps of mulched grass. For and catchers will collect less grass. To extremely heavy mulching, reduce your prevent this, regularly hose catcher off width of cut by overlapping previously with water and let dry before using. cut path and mow slowly. • Keep top of engine around starter clear • Certain types of grass and grass and clean of grass clippings and chaff. conditions may require that an area be This will help engine air flow and mulched a second time to completely extend engine life. 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 change to east to west the next week. This will help prevent matting and graining of the lawn. Max 1/3 9 MAINTENANCE SCHEDULE FILL IN DATES AS YOU COMPLETE REGULAR SERVICE M SERVICE Check for Loose Fasteners Cleatvlnspect Grass Catcher (If Equipped) Clean Lawn Mower I/ t/ DATES _ 11 / ll/ _ 11/ J_ (Power*Propelled Clean Under DriveMowers) Cover Check drive belt/ ulleys O E (Power_Propell_jPMowers) C heck/S harpe n/Re place Blade IJ _ 3 Lubrication Chart Clean BatterylRecharge I/ t/ II/' _4 IElectric Start Mowers ! E 3heckEngineOilLevel ¥1 N Chan_e Engine Oil Clean Air Filter I ! Inspect Muffler N Clean or ReplaCe Spark Plug t/l,z It/ 2 _' G E Replace AirFilter Paper Carb'idge 1 o_ mo_e often when operating IJnde_r a heavy b/2 load or In high ambient temperatu_'es 2 o Seph_ morn_ when op_'a_ng in di,_y ot dusty cond_tioP_ 3 o Repts_ blades morn of_n when n_wk_l in sandy scll 4 -_ 48 boutsal end o#season. 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. Alt 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, clean or 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. • Follow the maintenance schedule in this manual. BEFORE EACH USE 1. Check engine oil level. 2. Check for loose fasteners. LUBRICATION Keep unit well lubricated (See "LUBRICATION CHART"). LUBRICATION CHART _) Wheel adjuster Handle bracket mounting pin (_) Refer to maintenance _) Spray lubricant "Engine" section. IMPORTANT: Do not oil or grease plastic wheel bearings, viscous lubricants will attract dust and dirt that will shorten the life of the self-lubricating bearings, if you feel they must be lubricated, use only a dry, powdered graphite type lubricant sparingly. 10 PRODUCT SPECIFICATIONS ERIALNUMBER DATE OF PURCHASE _ASOLINE CAPACITY/TYPE: DILTYPE (API-SF-SJ): )IL CAPACITY: SPARK PLUG (GAP: .045") BLADE BOLT TORQUE: 1.5 QUARTS UNLEADED REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F) 20 OZS. CHAMPION RESISTOR TYPE RJ19LM4 35-40 FT. LBS. The model and serial numbem 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 1. Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug. 2. Turn lawn mower on its side. Make sure air filter and carburetor are up. 3. Use a wood block between blade and mower housing to prevent blade from turning when removing blade bolt. NOTE: Protect your hands with gloves and/or wrap blade with heavy cloth. 4. Remove blade bolt by turning counterclockwise. 5. 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 1. Position the blade adapter on the engine crankshaft. Be sure key in adapter and crankshaft keyway are aligned. 2. Position blade on the blade adapter aligning the two (2) holes in the blade with the raised lugs on the adapter. 3. Be sure the trailing edge of blade (opposite sharp edge) is up toward the engine. 4. Install the blade bolt with the lock washer and hardened washer into blade adapter and crankshaft. 5. 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. 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. 11 Bladeadapter " Crankshaft Key._ _ keyway Lockwasher_ Blade __ ! _11 ENGINE LUBRICATION Use only high quality detergent oil rated with API service classificationSF-SJ, Select the oil's SAE viscositygrade according to your expected operating temperature. crank _--- shaft bolt Hardened _-Blade washer Trailingedge adapter GRASS CATCHER • 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. DRIVE WHEELS Check front drive wheels each time before you mow to be sure they move freely. The wheels not turning freely means trash, grass cuttings, etc. are in the drive wheel area and must be cleaned to free drive wheels. If necessary to clean the drive wheels, check both front wheels. 1. Remove hubcaps, hairpin cotters and washers. 2. Remove wheels from wheel adjusters. 3. Remove any trash or grass cuttings from inside the dust cover, pinion and/ or drive wheel gear teeth. 4. Put wheels back in place. NOTE: If after cleaning, the drive wheels do not turn freely, contact a Sears or other qualified service center. GEAR CASE • To keep your drive system working properly, 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. 750369. Do not substitute. NOTE: Although multi-viscosity oils (5W30, 10W30 etc.) improve starting in cold weather, these multi-viscosityoils 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. 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. TO CHANGE ENGINE OIL NOTE: Before tipping lawn mower to drain oil, drain fuel tank by running engine until fuel tank is empty. 1. Disconnect spark plug wire from spark plug and place wire where it cannot come in contact with spark plug. 2. Remove engine oil cap; lay aside on a clean surface. 3. 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. 4. Wipe off any spilled oil on lawn mower and on side of engine. 5. Fill engine with oil. (See "Add Oil" in the Operacion section of this manual.) 6. Reconnect spark plug wire to spark plug. Contamer 12 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 1. Remove the air filter by turning clockwise to the stop and pull away from collar. 2. Remove filter from inside of cover. 3. Clean the inside of the cover and the collar to remove any dirt accumulation. 4. Insert new filter into cover. 5. Put air filter cover and filter into collar aligning the tab with the slot. 6. Push in on cover and turn counterclockwise to tighten. Collar _lockwise remove Turn Slot Air filter Air filter cover Turn counterclockwise to tighten MUFFLER Inspect and replace corroded muffler as it could create a fire hazard and/or damage. ACAUTION: Before performing any service or adjustments: 1. Release control bar and stop engine. 2. Make sure the blade and all moving parts have completely stopped. 3. Disconnect spark plug wire from spark plug and place where it cannot come in contact with plug. LAWN MOWER TO ADJUST CUTTING HEIGHT See "TO ADJUST CUTTING 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 possibilitythat 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, 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 best performance, keep mower housing free of buiLt-up grass and trash. Clean the underside of your mower after each use. _b.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 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. CLEAN UNDER DRIVE COVER Clean under drive cover at least twice a 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. TO REMOVE/REPLACE DRIVE BELT 1. Remove drive cover. Remove belt from gearcase pulley by pushing down on pulley and rolling belt off it. 2. Turn lawn mower on its side with air filter and carburetor up. 3. Remove blade. 4. Remove debds shield. 5. Remove belt from engine pulley on crankshaft. 6. InstaU new belt by reversing above steps. 7. Always use factory approved belt to assure fit and long life. Drive Belt 13 Push down TO ADJUST HANDLE The upper handle may be adjusted to four (4) different height positions. 1. Loosen both handle knobs only enough to allow the upper handle to pivot to the desired adjustment position. 2. Tighten both handle knobs securely. CatmC; eha_d_ oF'; o Handle Knob Handle Knob TO ASSEMBLE GRASS CATCHER 1. Put grass catcher frame into grass bag with rigid part of bag on the bottom. Make sure the frame handle is outside of the bag top. 2. Slip vinyl bindings over frame. NOTE: If vinylbindings are too stiff, hold them in warm water for a few minutes. If bag gets wet, let it dry before using. ACAUTION: Do not run your lawn mower without clipping deflector or approved grass catcher in place. Never attempt to operate the lawn mower with the rear door removed or propped open. ENGINE ENGINE SPEED 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 running too fast or too slow, take your lawn mower to a Sears or other qualified service center for repair and adjustment. CARBURETOR Your carburetor has a non-adjustable fixed main jet for mixture control. If your engine does not operate propedy due to suspected carburetor problems, take your lawn mower to a Sears or other qualified service center for repair and/or 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 adjusting, contact a Sears or other qualified service center, which has proper equipment and experience to make any necessary adjustments. Immediately prepare your lawn mower for 4. Touch up all rusted or chipped paint storage at the end of the season or if the surfaces; sand lightly before painting. unit will not be used for 30 days or more. HANDLE LAWN MOWER You can fold your lawn mower handle for storage. When lawn mower is to be stored for a 1. Squeeze the bottom ends of the lower period of time, clean it thoroughly, remove handle toward each other until the all dirt, grease, leaves, etc. Store in a lower handle clears the handle clean, dry area. bracket, then move handle forward. 1. Clean entire lawn mower (See 2. Loosen upper handle mounting bolts "CLEANING" in the Maintenance enough to allow upper handle to be section of this manual). folded back. 2. Lubricate as shown in the MainteIMPORTANT: When folding the handle nance section of this manual. for storage or transportation, be sure to 3. Be sure that all nuts, bolts, screws, fold the handle as shown or you may and pins are securely fastened. damage the control cables. Inspect moving parts for damage, breakage and wear. Replace if 14 necessary. • When setting up your handle from the storage position, the lower handle will automatically lock into the mowing position. Squeezeto fold bracket ,,F Operator presence contrOlupper handlbar _ ,_'_P_'¢)//_ Fold forward for _ _ stroage 2,f_,,' _3 __.._ i _Tf::._"-2 ,.it /_L ,,/" Fo,d Mowing position Lowerhandle 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. 1. Drain the fuel tank. 2. Start the engine and let it run until the fuel lines and carburetor are empty. • Never use engine or carburetor cleaner productsin the fuel tank or permanent damage may occur. • Use fresh fuel next season, NOTE: Fuel stabilizer is an acceptable alternative in minimizing the formation of fuel gum deposits during storage. Add stabilizer to gasoline in fuel tank or storage container. Always follow the mix ratio found on stabilizer container. Run engine at least 10 minutes after adding stabilizer to allow the stabilizer to reach the carburetor. Do not drain the gas tank and carburetor if using fuel stabilizer. ENGINE OIL Drain oil (with engine warm) and replace with clean engine oil. (See "ENGINE" in the Maintenance section of this manual). CYLINDER 1, Remove spark plug. 2. Pour one ounce (29 ml) of oil through spark plug hole into cylinder. 3. Pull starter handle slowly a few times to distribute oil, 4. Replace with 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 dirt. • Cover your unit with a suitable protective cover that does not retain moisture. Do not use plastic. Plastic cannot breathe which allows condensation to form and will cause your unit to rust. IMPORTANT: Never cover mower while engone and exhaust areas are still warm. A CAUTION:Never store the lawn mower 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. 15 TROUBLESHOOTING CHART PROBLEM CAUSE Does not start CORRECTION 211StaleOutDirty ofafuel. ir fuel. filter. 4. Water in fuel. 5. Spark plug wire is disconnected. 6. Bad spark plug. 7. Loose blade or broken blade adapter. 8. Control bar in released position. 9. Control bar defective. Loss of power 1. Rear of lawn mower housing or cutting blade dragging in heavy grass. 2. Cutting too much grass. 3. Dirty air filter. 4. Buildup of grass, leaves, and trash under mower. 5. Too much oil in engine. 6. Walking speed too fast. Poor cut uneven 1. Worn, bent or loose blade. 2, Wheel heights uneven. 3. Buildup of grass, leaves and trash under mower. Excessive vibration 1. Worn, bent or loose blade. 2. Bent engine crankshaft. Starter rope hard topull 1. Engine flywheel brake is on when control bar is released 2. Bent engine crankshaft. 3, Blade adapter broken. 4. Blade dragging in grass. Loss of drive 1. Drive wheels not turning with drive control engaged. 2. Belt not driving 16 1. Clean/replace air filter. 2. Fill fuel tank. 3. Drain tank and refill with fresh clean fuel. 4. Drain fuel tank and carburetor and refill tank with fresh gasoline. 5. Connect wire to plug. 6. Replace spark plug. 7. Tighten blade bolt or replace blade adapter. 8. Depress control bar to handle. 9. Replace control bar. 1. Set to "Higher Cut" position. 2. Set to "Higher Cut" position. 3. Clean/replace air filter. 4. Clean underside of mower housing. 5. Check oil level. 6. Cut at slower walking speed. 1. Replace blade. Tighten blade bolt. 2. Set all wheels at same height 3. Clean underside of mower housing. 1. Replace blade. Tighten blade bolt. 2. Contact a Sears or other qualified service center. 1. Depress control bar to upper handle before pulling starter rope. 2. Contact a Sears or other qualified service center. 3. Replace blade adapter. 4. Move lawn mower to cut grass or to hard surface. 1. Adjust or replace drive control cable. 2. Put belt on pulleys or replace belts if broken. TROUBLESHOOTING CHART PROBLEM CAUSE CORRECTION Grass catcher notfilling (ifso equipped) 1. Cutting height too low. 2. Lift on blade worn off. 3. Catcher not venting air. 1. Raise cutting height. 2, Replace blade. 3, Clean grass catcher. Hard to push 1. Grass is too high or wheel height is toe low. 2. Rear of lawn mower housing or blade dragging in grass, 3. Grass catcher too full, 4. Handle height position not right for you. 1. Raise cutting height. 17 2. Raise rear of lawn mower housing one (1) setting higher. 3. Empty grass catcher. 4. Adjust handle height to suit. ROTARY LAWN MOWER- - MODEL NO. 917.378410 GEAR CASE ASSEMBLY PART NUMBER 175258 I 7 KEY NO. 1 2 3 4 6 PART NO. 17490416 175248)(004 137053 57072 48373 7 5 9 10 11 77881 137051 175257 57079 131484 DESCRIPTION Tapping Screw 1/4-20 x 1-1/4 Engagement Bracket Shifter Seal Gear Case Halves Kit (Includes Key Nos. 4, and 7) Beanng WormShaft Drive Shaft HardenedWasher Clutch Yoke KEY NO. PART NO. DESCRIPTION 12 13 14 15 16 17 18 19 700343 86447 137050 750436X 750369 12000003 850848 81585X004 Bushing Plug HelicalGear 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 ROTARY LAWNMOWER - - MODEL NUMBER 917.378410 _24 27 31 35 13 44 31 43 28 46 45 25 ROTARY LAWN MOWER- - MODEL NUMBER 917.378410 KEY NO. 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 30 31 32 PART NO. 175391X479 175245)(479 169780 156577 171407 136376 51793 66426 175794 128415 175069X479 175070)(479 17060410 175082X479 175081X479 175243 175244 63601 153638 175573 88652 85543 87677 ..... 150406 83923 150341 175231 165761X004 701037 175060X004 DESCRIPTION Upper Handle Lower Handle Control Bar Engine Zone Contm_Cable Handle Bolt Handle Knob HairpinCotter Wire Tie Rear Door Kit (Incl. Kay #16 & 17) Pop Rivet Support Bracket LH Support Bracket RH Screw 14-20 x 5/8 Handle Bracket Assembly (Left) Handle Bracket Assembly (Right) Spdng LH Spring RH Keps Locknut 1/4-20 RopeGuide Rear Skift Hinge Screw 1/4-20 x 1-1/4 Engine Pulley Hi-Pro Key #505 Engine_3raftsman-Medel NO.143.016708 Hex Head Thread Rolling Stew 316-16 x 1-1/8 Hex Flange Nut W%e_ Shoulder Bolt 5/16-18 x .33 Axts Arm Assembly RR Selector Knob Selector Spring KEY NO. PART NO. DESCRIPTION 34 35 36 38 39 43 44 45 46 47 48 49 50 78 79 80 51 82 --- 165762X004 175012 165912 176185 176235 175083 176289 85463 851514 175064 851074 850263 851084 170954 170953 170554 170955 170956 161658 176301 Axle Arm Assembly LR Hubcap Bolt Washer Pushnut Bottom Belt Cover Lawn Mower Housing (Incl, Key #10, 11, 12& 45) Danger Deal Blade Adapter Blade21" Hardened Washer Helical Washer 3/8-24 x 1-3/8 Gr. 8 Hex Head Machine Screw 3/8-24 x 1-3/8 Gr. 8 Handle Adjuster, Outside, LH Handle Adjuster, Inside. LH Handts Adjuster Spdng Handts Adjuster. thside, RH Handts Adjustsr. Outside, RH Warning Decal (Not Shown) Owner's Manual (English/Spanish) Available accessories not included with lawn mower: ----- D/98 33314 7t 33623 71 33500 71 33068 CJippingDeflector Gas Can Fuel Stabilzer SAE 30W Oil (20 oz.) NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm ROTARY LAWN MOWER - - MODEL NUMBER 917.378410 11 / • _ \ , \__, __ 18 14 16 13 14 4O li6 g 8 12 13 18 ROTARY LAWN MOWER - - MODEL NUMBER 917.378410 KEY PART NO. NO. DESCRIPTION 1 3 4 5 6 8 9 11 12 13 14 15 16 18 26 Control Cable Assembly Locknut #10-24 Hex Washer Head Screw 1/4-20 x 2.12 V-Belt Spchg Retainer Hubcap Locknut Wheel & Tire Assembly E-Ring Pinion Dust Cover Felt Washer Washer 112x 1-1/2 x ,134 Selector Knob Pan Head Tapping Screw #10-24 x 2-3/4 145755 751152 158755 175436 150495 175012 145212 150340 1201XX)58 137054 88080 88118 67725 701037 175262 KEY PART NO. NO. DtESCRIP'nON 28 31 32 35 36 37 38 40 41 54 55 57 Drive Cover Hex Flange Nut Drive Pulley Wheel Adjuster Assembly (Left) Gear Case Assembly Spring Locknut 1/4-20 Spring Wheel Adjust_r Assembly (Right) Grassbag Assembly Driveshaft Cover Frame 175065 132010 137G52 151521 175258 137090 63601 75192 151520 175084 175739 175058 NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mrn CRAFTSMAN 4-CYCLE ENGINE MODEL NO. 143.016708 9OO 110_ 135 130 120 119 195 416 125 €17e._ 275, 104 306 4O MODEL NO. 143,016708 CRAFTSMAN 4-CYCLE ENGINE KEY NO. PART NO. 1 2 6 7 12 12A 37465 26727 33734 36557 36775 36558 12B 14 15 16 17 18 36694 28277 30589 34839A 31335 651018 19 20 30 40 41 36281 32600 37464 40027 40042 42 43 45 40006 20381 36777 46 48 50 32610A 27241 37460 52 69 70 29914 37609 37608 72 73 75 80 81 82 37615 28833 27897 30574A 30590A 30591 83 66 89 90 92 93 100 101 103 30588A 650488 611004 611112 650815 650816 34443C 610118 651007 104 110 119 120 125 37480 37047 36787 36825 36780 125 37288 126 130 135 37289 6021A 37598 150 151 151A 169 31672 31673 40017 36783 DESCRIPTION Cylinder IncL 2 & 20) Dowe Pin Breather Element Breather Ass'y. (Incl. 6 & 12A) Breather Tube Breather Cover & Tube (Incl. 12B Brea her Tube Elbow Washer Governor Rod (Ind. 14) Governor Lever Governor Lever Clamp Screw, Tor-x T-15, 8-32 x 19/ 64" Extension Spring Oil Seal Crankshaft Piston, Pin & Ring Set (Std.) Piston & Pin Ass'y. (Std.) (Incl. 43) Ring Set (Std.) Piston Pin Retaining Ring Connecting Rod Ass'y. (Incl. 46) Connecting Rod Bolt Valve Lifter Camshaft Exhaust(MCR)(Inc. ref 104) Oil Pump Ass'y. * Mounting Flange Gasket Mounting Flange (Incl. 72 thru 83) Oil Dram Rug (Incl. 73) Drain Plug Gasket Oil Seal Governor Shaft Washer Governor Gear Ass'y. (Incl. 81) Governor S_p(oct Screw, 114-_0 x 1-1/4" Flywheel Key Flywheel Belleville Washer Flywheel Nut Solid State Ignition Spark Plug Cover Screw, Torx T-15, 10-24 x 15/ 16" Cam Bushing Ground Wire * Cylinder Head Gasket Cylinder Head Exhaust Valve (1132" GS) (IncL 151 Exhaust Valve Std.) (Ind. 161 Inta l e Valve (Std.) (In_l. 151) Sc_=w, 5/16-t6 x 1-112" Resistor Spark Plug (RJ19LM4 Valve Spnng Valve Spdn 9 Cap Intake Valve Seal * Valve Cover Gasket KEY NO. PART NO. 172 174 178 182 184 36784 30200 29752 6201 26756 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 309A 310 311A 313 347 355 370A 370C 370R 380 390 400 37466 32653 650839 36559A 610973 34336 33086 650451 36786 650932 34338 36919 36905 37122 36980 30200 650831 37184 37462 650988 35000A 650926 29774 26460 28763 36916 36246 35647 37610 35499 650562 650783 35648 7611 34080 651038 590701 36261 37318 37317 640271 590739 36792B 416 36085 417 900 900 650760 -----750865 DESCRIPTION * * * * Valve Cover Screw, 10-24 x 9/16" Nut & Lock Washer, 1/4-28 Screw, 1/4-28 x 7/8" Carburetor To Intake Pipe Gasket Intake Pipe Governor Link Screw, 1/4-20 x 3/8" S.E. Brake Bracket (Ind. 195) Terminal ThrOttle Link R.RM. Ad'usUng]! Lever Screw, 1/4-20 x I" intake Pip_e 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 Gdll Muffler Screw, 1/4-20 x 2-5/16" Starter Cup Screw, 8-32 x 21/64" Fuel Line Fuel Line Clamp Screw, 10-32 x 35164" Fuel Tank (Incl. 292 & 301 Fuel Cap (Black) Oil Fill Tube "O'-Ring "O'-RJng Screw, 10-32 x 1/2" Screw, 10-24 x 3/4" 590568 Dipstick Hold Down Bracket Spacer Screw, 10-32 x 51/64" Starter Handle Lubrication Decal primer Decal (3 X) Warning Decal Carburetor IncL 184) Rewnd Starter Gasket Set (Incl. Items Marked* Spark Arrestor Kit (tac. 417)(Optional) Screw, 8-32 x 3/8" Optional) Replacement Engine NONE Replacement S/B Order from 7%999 RPM High 2900 to 3200 NOTE; 590702 This engine could have been built with starter. NOTE; All component dimensions given in U.S. inches 1 inch = 25.4 mm 41 CRAFTSMAN 4-CYCLE ENGINE MODEL NO. 143.016708 KEY NO. PART NO. DESCRIPTION ---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 60 640271 31615 31767 631184 631183 640070 650506 631807 651026 630766 640027 640200 631867 631024 632019 631028 631021 631022 640259 640080 632766 632547 640030 27110A 630748 631027 632760B Carburetor Incl. 184 of Engine Parts List) Throttle Shaft & Lever Assemb y Throttle Return Spring Dust Seal Washer Dust Seal (Throttle) Throttle Shutter Shutter Screw Fuel Fitting Throttle Crack Screwlldle Speed Screw Tension Spring Idle Restrictor Screw Idle Restrictor Scrwe Cap (Black) Float Bowl Float Shaft Float Float Bowl "O" Ring Inlet Needle, Seat, & Clip (Incl. 31) Bpdng 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 Mixture Well Welch Plug, Atmospheric Vent Repair kit (Incl. Items Marked " in Notes) • • * • • • * • " 42 MODEL NO, 143,016708 CRAFTSMAN 4-CYCLE ENGINE KEY NO. PART NO. 1 2 3 4 5 6 7 8 11 590702 590599A 590600 590696 590601 590697 590698 590699 590700 590703 12 590535 13 590701 Recoil Starter Spring Pin (IncL 4) Washer Retainer Washer Brake S ring Starter _org Deg Spdng 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 ---3 6 590739 590740 590616 8 11 590618A 590638 12 7 13 14 590535 590617 590701 590760 DESCRIPTION _m5 Oq2 _2 / --= Rewind Starter Retainer Starter Dog Deg Spring Pulley & Rewind Spring Ass'y Starter Housing Ass'y (40 degree grommet) Starter Rope(Length 98" x 9/ 64" dia.) Starter Handle Spring Clip For repair of major brand appliances in your own home... no matter who made it, no matter who sold it! 1-8OO-4-MY-HOME sM^nytime, dayo,night (1-800-469-4663) www.sears,com To bring in products such as vacuums, lawn equipment and electronics for repair, call for the location of your nearest Sears Parts & Repair Center. 1-800-488-1222 Anytime. day or night www.sears.com For the replacement parts, accessories and owner's manuals that you need to do-it-yourself, call Sears PartsDirectSM! 1-800-366-PART 6a.r..-11p.m. CST, (1 "800"366-7278) 7 days a week www.sears.condpart sdlrect To purchase or inquire about a Sears Service Agreement: 1-800-827-8655 7 a.m. - 5 p.m. CST, Mon. - Sat. 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