Craftsman 917.37841 Owner's Manual

Owner's Manual I CRAFT.TMAW I 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 Product Specifications ........................ 11 Service and Adjustments .................... 13 Storage ............................................... 14 Troubleshooting ................................. 16 Repair Parts ........................................ 35 Parts Ordering ..................... 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 workman- ship. 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. I.GENERAL OPERATION • Read, understand, and follow all instructions on the machine and in the manual(s) before starting. Be thor- ° oughly familiar with the controls and the proper use of the machine before starting. • Do not put hands or feet near or under rotating parts. Keep clear of the discharge opening at all times. • Only allow responsible individuals, who are familiar with the instructions, to operate the machine. • Clear the area of objects such as rocks, toys, wire, bones, sticks, etc., which could be picked up and thrown by the blade. 2 Be sure the area is clear of other people before mowing. Stop machine if anyone enters the area. Do not operate the mower when barefoot or wearing open sandals. Always wear substantial foot wear. Do not pull mower backwards unless absolutely necessary. Always look down and behind before and while moving backwards. Do not operate the mower without proper guards, plates, grass catcher or other safety protective devices in place. See manufacturer's instructions for proper operation and installation of accessories. Only use accessories approved by the manufacturer.
• Stop the 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 mecha- nism 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 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. • 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 acciden- tal 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. 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. 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. 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. 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 _ GRASS CATCHERS \ FOR REAR DISCHARGE LAWN MOWERS MULCHER KITS GRASS CATCHERS FOR SIDE DISCHARGE LAWNMOWERS LAWN MOWER MAINTENANCE MUFFLERS BELTS BLADES AIR FILTERS BLADE ADAPTERS WHEELS STABILIZER I _ Ill I I I _ GAS CANS SPARK PLUGS t _, _1 I ENGINE OIL 4
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 as- sembled at the factory with the exception of those parts left unassembled for shipping purposes. All parts such as nuts, washers, bolts, etc., necessary to com- plete 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 u[_) Upper handle -_ _" /#" • .o0 Lower handle 5
KNOWYOUR LAWN MOWER READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER. Compare the illustrations with 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 ENGINE ENGINE FAST SLOW CHOKE FUEL OIL DANGER, KEEP HANDS OR WANNING ON OFF AND FEET AWAY Starter handle _perator presence control bar 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. Wheel adjuster (on each wheel) 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 Commis- sion. The blade turns when the engine is running. Operator presence control bar - must Starter handle - used for starting the be held down to the handle to start the engine. engine. Release to stop the engine. Drive control lever - used to engage Primer - pumps additional fuel from the power-propelled forward motion of lawn carburetor to the cylinder for use when mower. starting a cold engine, 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 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 require- ments. 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. Plate Tab Lower Wheels for High Cut / ,,rib. _ Lever Raise Wheels for Low Cut TO CONVERT MOWER Your lawn mower was shipped ready to be used as a mulcher. To convert to bagging : REAR BAGGING • Lift rear door of the lawn mower and place the grass catcher frame hooks onto the door pivot pins. • To convert to mulching operation, remove grass catcher and close rear 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 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 catcher frame handle handle 7
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. Operator presence control bar Drive t control _k_ TO engage _._ Drive control "" dn_/e control "" 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 fill to 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. 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 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, such as very tall 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 clLppings. 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. • When using a rear discharge lawn mower in moist, heavy grass, clumps of cut grass may not enter the grass catcher. Reduce ground speed (pushing speed) and/or run the lawn mower over the area a second time. • If a trail of clippings is left on the right side of a rear discharge mower, mow in a clockwise direction with a small overlap to collect the clippings on the next pass. • 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. MULCHING MOWINGTIPS IMPORTANT: For best performance, keep mower housing free of built-up grass and trash. See "Cleaning" Ln 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 end not be noticed. Also, the mulched grass wilt biodegrade quickly to provide nutrients for the lawn. Always mulch with your highest engine (blade) speed as this will provide the best recutting action of the blades. • Avoid cutting your lawn when it is wet. Wet grass tends to form clumps and interferes with the mulching action. The best time to mow your lawn is the early afternoon. At this time the grass has dried and the newly cut area will not be exposed to the direct sun. • For best results, adjust the lawn mower cutting height so that the lawn mower cuts off only the top one-third of the grass blades. If the lawn is overgrown it will be necessary to raise the height of cut to reduoe pushing effort and to keep from overloading the engine and leaving clumps of mulched grass. For extremely heavy mulching, reduce your width of cut by overlapping previously cut path and mow slowly. • Certain types of grass and grass conditions may require that an area be mulched a second time to completely hide the clippings. When doing a second cut, mow across or perpendicu- lar 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 SERVICE DATES Check for Loose Fasteners I/ _ 11 / Cleatvlnspect Grass Catcher (If Equipped) t/ ll/ 11/ M Clean Lawn Mower _ J_ O Clean Under Drive Cover (Power*Propelled Mowers) Check drive belt/ ulleys E (Power_Propell_jPMowers) IJ C heck/S harpe n/Re place Blade _ 3 Lubrication Chart I/ t/ Clean BatterylRecharge IElectric Start Mowers ! II/' _4 E 3heck Engine Oil Level ¥1 N Chan_e Engine Oil t/l,z G Clean Air Filter It/ 2 I ! Inspect Muffler _' N Clean or ReplaCe Spark Plug E Replace Air Filter Paper Carb'idge b/2 1 o _ mo_e often when operating IJnde_r a heavy 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 bouts al 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 "LUBRI- CATION CHART"). LUBRICATION CHART _) Wheel adjuster Handle bracket mounting pin (_) Refer to maintenance "Engine" section. _) Spray lubricant IMPORTANT: Do not oil or grease plastic wheel bearings, viscous lubri- cants 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: 1.5 QUARTS UNLEADED REGULAR DILTYPE (API-SF-SJ): SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F) )IL CAPACITY: 20 OZS. SPARK PLUG (GAP: .045") CHAMPION RESISTOR TYPE RJ19LM4 BLADE BOLT TORQUE: 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 counter- clockwise. 5. Remove blade and attaching hard- ware (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 condi- tion 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 sharpen- ing 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
Blade adapter " Crankshaft Key._ _ keyway Lockwasher _ __ ! _11 Blade crank _--- shaft bolt Hardened _-Blade washer Trailing edge 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. ENGINE LUBRICATION Use only high quality detergent oil rated with API service classification SF-SJ, Select the oil's SAE viscosity grade according to your expected operating temperature. 12 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. 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
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 accumula- tion. 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 counter- clockwise to tighten. Collar Turn _lockwise remove Slot Air filter Air filter cover Turn counter- clockwise to tighten MUFFLER Inspect and replace corroded muffler as it could create a fire hazard and/or dam- age. 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. 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 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, 13 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 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. 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 vinyl bindings 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. CatmC; eha_d_ oF'; o 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 adjust- ment. 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 storage at the end of the season or if the unit will not be used for 30 days or more. LAWN MOWER When lawn mower is to be stored for a period of time, clean it thoroughly, remove all dirt, grease, leaves, etc. Store in a clean, dry area. 1. Clean entire lawn mower (See "CLEANING" in the Maintenance section of this manual). 2. Lubricate as shown in the Mainte- nance section of this manual. 3. Be sure that all nuts, bolts, screws, and pins are securely fastened. Inspect moving parts for damage, breakage and wear. Replace if necessary. 4. Touch up all rusted or chipped paint surfaces; sand lightly before painting. HANDLE You can fold your lawn mower handle for storage. 1. Squeeze the bottom ends of the lower handle toward each other until the lower handle clears the handle bracket, then move handle forward. 2. Loosen upper handle mounting bolts enough to allow upper handle to be folded back. IMPORTANT: When folding the handle for storage or transportation, be sure to fold the handle as shown or you may damage the control cables. 14
• When setting up your handle from the storage position, the lower handle will automatically lock into the mowing position. Squeeze to fold ,,F bracket Operator presence contrOlupper handlbar _ ,_'_P_'¢)//_ Fold forward for _ _ ,.it /_L stroage __.._ 2,f_,, ' _3 ,,/" Fo,d i _Tf::._ "-2 - 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. 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 products in 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 protec- tive cover that does not retain mois- ture. 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 211 StaleOutDirty of air fuel. fuel. filter. Loss of power Poor cut - 1. uneven 2, 3. Excessive 1. vibration 2. Starter rope hard 1. topull 2. 3, 4. Loss of drive 1. 2. 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. 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. Worn, bent or loose blade. Wheel heights uneven. Buildup of grass, leaves and trash under mower. Worn, bent or loose blade. Bent engine crankshaft. Engine flywheel brake is on when control bar is released Bent engine crankshaft. Blade adapter broken. Blade dragging in grass. Drive wheels not turning with drive control engaged. Belt not driving CORRECTION 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. 16
TROUBLESHOOTING CHART PROBLEM CAUSE CORRECTION Grass catcher 1. Cutting height too low. 1. Raise cutting height. notfilling (ifso 2. Lift on blade worn off. 2, Replace blade. equipped) 3. Catcher not venting air. 3, Clean grass catcher. Hard to push 1. Grass is too high or wheel 1. Raise cutting height. height is toe low. 2. Rear of lawn mower 2. Raise rear of lawn mower housing or blade dragging housing one (1) setting in grass, higher. 3. Grass catcher too full, 3. Empty grass catcher. 4. Handle height position not 4. Adjust handle height to right for you. suit. 17
I ROTARY LAWN MOWER- - MODEL NO. 917.378410 GEAR CASE ASSEMBLY PART NUMBER 175258 7 KEY PART NO. NO. DESCRIPTION 1 17490416 Tapping Screw 1/4-20 x 1-1/4 2 175248)(004 Engagement Bracket 3 137053 Shifter 4 57072 Seal 6 48373 Gear Case Halves Kit (Includes Key Nos. 4, and 7) 7 77881 Beanng 5 137051 WormShaft 9 175257 Drive Shaft 10 57079 HardenedWasher 11 131484 Clutch Yoke KEY PART NO. NO. DESCRIPTION 12 700343 Bushing 13 86447 Plug 14 137050 HelicalGear 15 750436X Clutch Jaw 16 750369 Grease 17 12000003 E-Ring 18 850848 Hi-pro Key 19 81585X004 Spring Bracket NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mm 35
ROTARY LAWN MOWER - - MODEL NUMBER 917.378410 31 13 28 45 _24 27 31 44 35 43 46 25
ROTARY LAWN MOWER- - MODEL N UMBER 917.378410 KEY PART NO. NO. DESCRIPTION 1 175391X479 Upper Handle 2 175245)(479 Lower Handle 3 169780 Control Bar 4 156577 Engine Zone Contm_ Cable 5 171407 Handle Bolt 6 136376 Handle Knob 7 51793 Hairpin Cotter 6 66426 Wire Tie 9 175794 Rear Door Kit (Incl. Kay #16 & 17) 10 128415 Pop Rivet 11 175069X479 Support Bracket LH 12 175070)(479 Support Bracket RH 13 17060410 Screw 14-20 x 5/8 14 175082X479 Handle Bracket Assembly (Left) 15 175081X479 Handle Bracket Assembly (Right) 16 175243 Spdng LH 17 175244 Spring RH 18 63601 Keps Locknut 1/4-20 19 153638 RopeGuide 20 175573 Rear Skift 21 88652 Hinge Screw 1/4-20 x 1-1/4 22 85543 Engine Pulley 23 87677 Hi-Pro Key #505 24 ..... Engine_3raftsman-Medel NO. 143.016708 25 150406 Hex Head Thread Rolling Stew 316-16 x 1-1/8 26 83923 Hex Flange Nut 27 150341 W%e_ 28 175231 Shoulder Bolt 5/16-18 x .33 30 165761X004 Axts Arm Assembly RR 31 701037 Selector Knob 32 175060X004 Selector Spring KEY PART NO. NO. DESCRIPTION 34 165762X004 Axle Arm Assembly LR 35 175012 Hubcap 36 165912 Bolt 38 176185 Washer 39 176235 Pushnut 43 175083 Bottom Belt Cover 44 176289 Lawn Mower Housing (Incl, Key #10, 11, 12& 45) 45 85463 Danger Deal 46 851514 Blade Adapter 47 175064 Blade21" 48 851074 Hardened Washer 49 850263 Helical Washer 3/8-24 x 1-3/8 Gr. 8 50 851084 Hex Head Machine Screw 3/8-24 x 1-3/8 Gr. 8 78 170954 Handle Adjuster, Outside, LH 79 170953 Handle Adjuster, Inside. LH 80 170554 Handts Adjuster Spdng 51 170955 Handts Adjuster. thside, RH 82 170956 Handts Adjustsr. Outside, RH - - 161658 Warning Decal (Not Shown) -- 176301 Owner's Manual (English/Spanish) Available accessories not included with lawn mower: -- D/98 33314 CJippingDeflector - - 7t 33623 Gas Can -- 71 33500 Fuel Stabilzer - - 71 33068 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 • _ \ , \__, __ 14 11 / 18 14 16 13 18 li6 g 8 13 12 4O
ROTARY LAWN MOWER - - MODEL NUMBER 917.378410 KEY PART NO. NO. 1 145755 3 751152 4 158755 5 175436 6 150495 8 175012 9 145212 11 150340 12 1201XX)58 13 137054 14 88080 15 88118 16 67725 18 701037 26 175262 KEY PART DESCRIPTION NO. NO. DtESCRIP'nON Control Cable Assembly 28 175065 Locknut #10-24 31 132010 Hex Washer Head Screw 1/4-20 x 2.12 32 137G52 V-Belt 35 151521 Spchg Retainer 36 175258 Hubcap 37 137090 Locknut 38 63601 Wheel & Tire Assembly 40 75192 E-Ring 41 151520 Pinion 54 175084 Dust Cover 55 175739 Felt Washer 57 175058 Washer 112 x 1-1/2 x ,134 Selector Knob Pan Head Tapping Screw #10-24 x 2-3/4 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 NOTE: All component dimensions given in U.S. inches. 1 inch = 25.4 mrn
CRAFTSMAN 4-CYCLE ENGINE MODEL NO. 143.016708 9OO 110_ 135 130 120 416 €17e._ 119 125 275, 104 306 195 4O
CRAFTSMAN 4-CYCLE ENGINE MODEL NO. 143,016708 KEY PART KEY PART NO. NO. DESCRIPTION NO. NO. DESCRIPTION 1 37465 Cylinder IncL 2 & 20) 172 36784 Valve Cover 2 26727 Dowe Pin 174 30200 Screw, 10-24 x 9/16" 6 33734 Breather Element 178 29752 Nut & Lock Washer, 1/4-28 7 36557 Breather Ass'y. (Incl. 6 & 12A) 182 6201 Screw, 1/4-28 x 7/8" 12 36775 Breather Tube 184 26756 * Carburetor To Intake Pipe 12A 36558 Breather Cover & Tube (Incl. Gasket 12B 185 37466 Intake Pipe 12B 36694 Brea her Tube Elbow 186 32653 Governor Link 14 28277 Washer 189 650839 Screw, 1/4-20 x 3/8" 15 30589 Governor Rod (Ind. 14) 191 36559A S.E. Brake Bracket (Ind. 195) 16 34839A Governor Lever 195 610973 Terminal 17 31335 Governor Lever Clamp 207 34336 ThrOttle Link 18 651018 Screw, Tor-x T-15, 8-32 x 19/ 216 33086 R.RM. Ad'usUng]! Lever 64" 223 650451 Screw, 1/4-20 x I" 19 36281 Extension Spring 224 36786 * intake Pip_e Gasket 20 32600 Oil Seal 238 650932 Screw, 10-32 x 49/64" 30 37464 Crankshaft 239 34338 * Air Cleaner Gasket 40 40027 Piston, Pin & Ring Set (Std.) 241 36919 Air Cleaner Collar 41 40042 Piston & Pin Ass'y. (Std.) 245 36905 Air Cleaner Filter (Incl. 43) 250 37122 Air Cleaner Cover 42 40006 Ring Set (Std.) 260 36980 Blower Housing 43 20381 Piston Pin Retaining Ring 261 30200 Screw, 10-24 x 9/16" 45 36777 Connecting Rod Ass'y. (Incl. 262 650831 Screw, 1/4-20 x 1/2" 46) 263A 37184 Starter Gdll 46 32610A Connecting Rod Bolt 275 37462 Muffler 48 27241 Valve Lifter 277 650988 Screw, 1/4-20 x 2-5/16" 50 37460 Camshaft Exhaust(MCR)(Inc. 285 35000A Starter Cup ref 104) 287 650926 Screw, 8-32 x 21/64" 52 29914 Oil Pump Ass'y. 290 29774 Fuel Line 69 37609 * Mounting Flange Gasket 292 26460 Fuel Line Clamp 70 37608 Mounting Flange (Incl. 72 298 28763 Screw, 10-32 x 35164" thru 83) 300 36916 Fuel Tank (Incl. 292 & 301 72 37615 Oil Dram Rug (Incl. 73) 301 36246 Fuel Cap (Black) 73 28833 Drain Plug Gasket 305 35647 Oil Fill Tube 75 27897 Oil Seal 306 37610 * "O'-Ring 80 30574A Governor Shaft 307 35499 "O'-RJng 81 30590A Washer 309 650562 Screw, 10-32 x 1/2" 82 30591 Governor Gear Ass'y. (Incl. 309A 650783 Screw, 10-24 x 3/4" 590568 81) 310 35648 Dipstick 83 30588A Governor S_p(oct 311A 7611 Hold Down Bracket 66 650488 Screw, 114-_0 x 1-1/4" 313 34080 Spacer 89 611004 Flywheel Key 347 651038 Screw, 10-32 x 51/64" 90 611112 Flywheel 355 590701 Starter Handle 92 650815 Belleville Washer 370A 36261 Lubrication Decal 93 650816 Flywheel Nut 370C 37318 primer Decal (3 X) 100 34443C Solid State Ignition 370R 37317 Warning Decal 101 610118 Spark Plug Cover 380 640271 Carburetor IncL 184) 103 651007 Screw, Torx T-15, 10-24 x 15/ 390 590739 Rewnd Starter 16" 400 36792B Gasket Set (Incl. Items 104 37480 Cam Bushing Marked* 110 37047 Ground Wire 416 36085 Spark Arrestor Kit (tac. 119 36787 * Cylinder Head Gasket 417)(Optional) 120 36825 Cylinder Head 417 650760 Screw, 8-32 x 3/8" Optional) 125 36780 Exhaust Valve (1132" GS) 900 ------ Replacement Engine NONE (IncL 151 900 750865 Replacement S/B Order from 125 37288 Exhaust Valve Std.) (Ind. 7™9 161 l 126 37289 Inta e Valve (Std.) (In_l. 151) RPM High 2900 to 3200 130 6021A Sc_=w, 5/16-t6 x 1-112" 135 37598 Resistor Spark Plug NOTE; This engine could have been built with (RJ19LM4 590702 starter. 150 31672 Valve Spnng 151 31673 Valve Spdn 9 Cap NOTE; All component dimensions given in U.S. 151A 40017 Intake Valve Seal inches 1 inch = 25.4 mm 169 36783 * Valve Cover Gasket 41
CRAFTSMAN 4-CYCLE ENGINE MODEL NO. 143.016708 KEY PART NO. NO. DESCRIPTION ---- 640271 1 31615 2 31767 4 631184 5 631183 6 640070 7 650506 16 631807 17 651026 18 630766 20 640027 20A 640200 25 631867 27 631024 28 632019 29 631028 30 631021 31 631022 35 640259 36 640080 36A 632766 37 632547 40 640030 44 27110A 47 630748 48 631027 60 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
CRAFTSMAN 4-CYCLE ENGINE MODEL NO, 143,016708 _m5 Oq2 KEY PART NO. NO. 590702 1 590599A 2 590600 3 590696 4 590601 5 590697 6 590698 7 590699 8 590700 11 590703 12 590535 13 590701 DESCRIPTION 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 PART NO. NO. _2 ---- 590739 3 590740 6 590616 7 590617 8 590618A 11 590638 --= 12 590535 13 590701 14 590760 DESCRIPTION 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, day o, 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 6 a.r..- 11 p.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. Para pedir servicio de reparacibn a domidlio, Au Canada pour service en franc.,ais: y para ordenar piezas con entrega a domicilio: 1-877-LE-FOYER" (1-877-533-6937) 1-888-SUoHOGAR _" (1-888-784-6427) HomeCentral © Sears, Roebuck and Co. ® Registered Trademark / Tm Trademark of Sears, Roebuck and Co. TM ® Marca Regisbada / Marca de F_brica de Sears, Roebuck and CO, 176301 01.26.01 BY Printed in U.S.A.