Craftsman 917.377425 Lawn Mower User Manual
Contents
1. Intake Valve a Incl 151 Screw 5 16 18 x 1 1 2 Resistor Spark Plug RJ19LM4 Valve Soring Valve Spring Cap Intake Valve Seal Valve Cover Gasket KEY PART NO NO 1 37465 2 26727 6 33734 7 36557 12 36775 12A 36558 12B 36694 14 28277 15 9 16 34839A 17 5 18 651018 19 36281 20 32600 30 4 40 7 41 12 42 40006 43 1 45 36777 46 4 48 27241 50 37460 52 4 69 37609 70 37608 72 37615 73 28833 75 7 80 30574A 81 4 82 1 83 30588A 86 8 89 4 90 611112 92 650815 93 650816 100 34443C 101 8 103 651007 104 0 110 37047 119 36787 120 36825 125 36780 125 37288 126 9 130 6021A 135 8 150 12 151 53 151A 40017 169 36783 CRAFTSMAN 4 CYCLE ENGINE MODEL NO 143 016708 a PN lt 3 KEY PART NO NO DESCRIPTION 640271 Carburetor Incl 184 of Engine Parts List 1 31615 Throttle Shaft amp Lever Assembly 2 31767 Throttle Return Spring 4 631184 Dust Seal Washer 5 631183 Dust Seal Throttle 6 640070 Throttle Shutter 7 650506 Shutter Screw 16 7 Fuel Fitting 17 5 Throttle Crack Screw ldle Speed Screw 18 630766 Tension Spring 20 7 Idle Restrictor Screw 20A 640200 Idle Restrictor Scrwe Cap Black 25 631867 Float Bowl 27 631024 Float Shaft 28 632019 Float 29 631028 Float Bowi 0 Ring 30 631021 Inlet Needle Seat amp Clip Incl 31 31 631022 Spring Clip 35 9 Primer Bulb Retainer Ring 36 0 Main Nozzle Tube 36A 632766 Carburetor Tube 32. Drive wheels not turning with drive control engaged 2 Belt not driving 16 TROUBLESHOOTING CHART CORRECTION 1 Raise cutting height 2 Replace blade 3 Clean grass catcher Raise cutting height height is too low 2 Raise rear of lawn mower housing one 1 setting higher 3 Empty grass catcher 4 Adjust handle height to suit housing or blade dragging in grass right for you 17 PROBLEM Grass catcher not filling if so Cutting height too low Lift on blade worn off Catcher not venting air Grass is too high or wheel Rear of lawn mower Grass catcher too full Handle height position not equipped Hard to push REPAIR PARTS ROTARY LAWN MOWER MODEL NO 917 378410 GEAR CASE ASSEMBLY PART NUMBER 175258 DESCRIPTION Bushing Plug Helical Gear Clutch Jaw Grease E Ring Hi Pro Key KEY PART NO NO 12 700343 13 7 14 0 15 750436X 16 9 17 12000003 18 8 81585X004 Spring Bracket 19 NOTE AIl component dimensions given in U S inches 1 inch 25 4 mm DESCRIPTION Tapping Screw 1 4 20 x 1 1 4 Engagement Bracket Shifter Seal Gear Case Halves Kit Includes Key Nos 4 and 7 Bearin Worm Shaft Drive Shaft Hardened Washer Clutch Yoke KEY PART NO NO 17490416 175248X004 137053 57072 48373 77881 137051 175257 57079 131484 0 00 N MARUN 20O ROT
3. lawn mower housing Record both serial number and date of purchase in space provided above LAWN MOWER TO REPLACE BLADE Always observe safety rules when 1 Position the blade adapter on the performing any maintenance engine crankshaft Be sure key in TIRES adapter and crankshaft keyway are aligned a ae replied aA ae 2 Position blade on the blade adapter rubber aligning the two 2 holes in the blade Avoid stumps stones deep ruts sharp with the raised lugs on the adapter objects and other hazards that may 3 Be sure the trailing edge of blade cause tire damage ne oan ae edge is up toward BLADE CARE 4 Install the blade bolt with the lock For best results mower blade must be washer and hardened washer into kept sharp Replace bent or damaged blade adapter and crankshaft blades 5 Use block of wood between blade and TO REMOVE BLADE lawn mower housing and tighten the blade bolt turning clockwise 1 Disconnect spark plug wire from spark The recommended tightening torque is plug and place wire where it cannot 35 40 ft Ibs come inicontact with spark plug IMPORTANT Blade bolt is grade 8 heat 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 R
4. o ND oP NS 1 Rear of lawn mower housing or cutting blade dragging in heavy grass Cutting too much grass 1 Set to Higher Cut position Set to Higher Cut position Clean replace air filter Clean underside of mower housing Check oil level Cut at slower walking speed 2 3 Dirty air filter 4 Buildup of grass leaves 5 6 and trash under mower Too much oil in engine Walking speed too fast oa PY N Worn bent or loose blade Replace blade Tighten blade bolt 2 Set all wheels at same height 3 Clean underside of mower housing Wheel heights uneven Buildup of grass leaves and trash under mower Worn bent or loose blade Replace blade Tighten blade bolt 2 Contact a Sears or other qualified service center Bent engine crankshaft Starter rope hard Engine flywheel brake is on to pull when control bar is released 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 Bent engine crankshaft Blade adapter broken 4 Blade dragging in grass Loss of drive Adjust or replace drive control cable 2 Put belt on pulleys or replace belts if broken
5. 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 ACAUTION Fill to bottom of gas tank filler neck Do not overfill 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 during 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 already 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 attemp
6. 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 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 clockwise to remove Turn 1 Counter Air filter cover clockwise to tighten MUFFLER Inspect and re
7. 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 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 equipp
8. lawn mower with the rear door removed or propped open STORAGE 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 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 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 fawn mower is to be stored for a period of time clean it thoroughly remove all dirt grease leaves etc Store ina clean dry area 1 Clean entire lawn mower See CLEANING in the Maintenance section of this manual Lubricate as shown in the Mainte nance section of this manual Be sure that all nuts bolts screws and pins are securely fastened Inspect moving parts for damage breakage and wear Replace if necessary 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 st
9. owner s manuals that you need to do it yourself call Sears PartsDirect 1 800 366 PART 6 a m 11 p m CST 1 800 366 7278 7 days a week www sears com partsdirect ROH OMA IAS EMH ETHIE DNG ORAM ROARED REEDS IAA RANAS LEED MN M BABA DAONARN NESC TShirt 08 Cex PAIONO LPA 2 KIP Gin DawEROHEM INE OD OE BEET si baba To purchase or inquire about a Sears Service Agreement 1 800 827 6655 7 a m 5 p m CST Mon Sat EEE Lb wa EOE HE COPAAN AYEDUN LOLS Set MOMMA OLDE ELISE 02 lt Para pedir servicio de reparaci n a domicilio Au Canada pour service en francais y para ordenar piezas con entrega a domicilio 1 877 LE FOYER 1 888 SU HOGAR 1 877 533 6937 1 888 784 6427 0 on aas HomeCentral Registered Trademark Trademark of Sears Roebuck and Co Sears Roebuck and Co Marca Registrada Marca de Fabrica de Sears Roebuck and Co 176301 01 26 01 BY Printed in U S A
10. 0 29774 292 26460 298 28763 300 36916 301 36246 305 35647 306 37610 307 35499 309 650562 309A 650783 310 35648 311A 7611 313 34080 347 8 355 1 370A 36261 370C 37318 370R 37317 380 640271 390 590739 400 36792B 416 36085 417 650760 900 900 750865 NOTE This engine could have been built with All component dimensions given in U S inches 1 inch 25 4 mm 90702 starter NOTE CRAFTSMAN 4 CYCLE ENGINE DESCRIPTION Cylinder Incl 2 amp 20 Dowel Pin Breather Element Breather Assy Incl 6 8 12A Breather Tube Breather Cover amp Tube Incl 12B Breather Tube Elbow Washer Governor Rod Incl 14 Governor Lever Governor Lever Clamp Screw Torx T 15 8 32 x 19 4 Extension Spring Oil Seal Crankshaft Piston Pin amp Ring Set Std Piston amp Pin AssY Std Incl 43 Ring Set Std Piston Pin Retaining Ring acne Red Assy Incl Connecting Rod Bolt Valve Lifter Camshaft Exhaust MCR Inc tef 104 Oil Pump Ass y Mounting Flange Gasket Mounting Flange Inci 72 Oil Drain Plug Incl 73 Drain Plug Gasket Oil Seat Governor Shaft Washer Gear Ass y Incl Govemor Spool Screw 1 4 20 x 1 1 4 Flywheel Key Flywheel Belleville Washer Flywheel Nut Solid State Ignition Spark Plug Cover oor Torx T 15 10 24 x 15 Cam Bushing Ground Wire Cylinder Head Gasket Cylinder Head emer Valve 1 32 OS incl 15 Naive Std Incl
11. 7 632547 0 Ring Main Nozzle Tube 40 0 High Speed Nut 44 27110A Bowl Nut Washer 47 630748 Welch Plug Idle Mixture Well 48 631027 Welch Plug Atmospheric Vent 60 6327608 Repair kit fha Items Marked in Notes 42 CRAFTSMAN 4 66 5 ENGINE MODEL 8 ia KEY PART DESCRIPTION 590702 Recoil Starter 1 590599A Spring Pin Incl 4 2 590600 Washer 3 590696 Retainer 4 590601 Washer 5 590697 Brake Spring 6 590698 Starter Dog 7 590699 Dog Spring 8 590700 Pulley amp Rewind Spring Ass y 11 590703 Starter Housing Ass y 40 degree grommet 12 5 Fral Rope 98 X 9 64 ia 13 590701 Starter Handle PART NO DESCRIPTION 590739 Rewind Starter 590740 Retainer 590616 Starter Dog 590617 Dog Spring 590618A Pulley amp Rewind Spring Ass y 590638 Starter Housing Ass y 40 degree grommet 590535 Starter Rope Length 98 x 9 64 dia 590701 Starter Handle 590760 Spring Clip For repair of major brand appliances in your own home no matter who made it no matter who sold it 1 800 4 MY H OME SM Anytime day or night 1 800 469 4663 www sears com To bring in products such as vacuums lawn equipment and electronics for repair call for the tocation of your nearest Sears Parts amp Repair Center 1 800 488 1 222 Anytime day or night Www sears com POO KEM OEE ARRON REN it ar co For the replacement parts accessories and
12. ARY LAWN MOWER MODEL NUMBER 917 378410 A D gt A Re gt A ROTARY LAWN MOWER MODEL NUMBER 917 378410 KEY PART NO NO DESCRIPTION 34 165762X004 Axle Arm Assembly LR 35 12 Hubcap 6 165912 Bolt 38 176185 Washer 39 176235 Pushnut 43 3 Bottom Belt Cover 44 176289 Lawn Mower Housing Incl Key 10 11 128 45 45 3 Danger Deal 46 4 Blade Adapter 47 175064 Blade 21 48 851074 Hardened Washer 49 850263 Helical Washer 3 8 24 x 1 3 8 Gr 8 50 4 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 Handle Adjuster Spring 81 170955 Handle Adjuster Inside RH 82 170956 Handie Adjuster Outside RH 161058 Warning Decal Not Shown 176301 Owner s Manual English Spanish Available accessories not included with lawn mower D 98 33314 Clipping Deflector Gas Can Fuel Stabilzer SAE 30W Oil 20 02 71 33623 71 33500 71 33000 NOTE All component dimensions given in U S inches 1 inch 25 4 mm DESCRIPTION Upper Handle Lower Handle Control Bar Engine Zone Control Cable Handle Bolt Handle Knob Hairpin Cotter Wire Tie Rear Door Kit Incl Key 16 amp 17 Pop Rivet Support Bracket LH Support Bracket RH Screw 14 20 x 5 8 Handle Bracket Assembly Left Handle Bracket Assembly Right Spring LH Spring RH Keps Locknut 1 4 20 Rope Guide Rear Skirt Hinge Screw 1 4 20 x 1 1 4 Engi
13. GINE 2 gt 22 MODEL 8 DESCRIPTION Valve Cover Screw 10 24 x 9 16 Nut amp 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 Incl 195 Terminal Throttle Link R P M eee t Lever Screw 1 4 20 x 1 Intake Pipe Gasket Screw 10 32 x 49 64 Air Cleaner Gasket Air Cleaner Collar Air Cleaner Filter Air Cleaner Cover Biower Housing Screw 10 24 x 9 16 Screw 1 4 20 x 1 2 Starter Grill Muffler Screw 1 4 20 x 2 5 16 Starter Cup Screw 8 32 x 21 64 Fuel Line Fuel Line Clamp Screw 10 32 x Pash 64 Fuel Tank 0 nel FEA amp 301 Fuel Cap Black Oil Filt Tube 9 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 Handie Lubrication Decal Primer Decal 3 X Warning Decal Carburetor Incl 184 Rewind Starter Gasket Set Incl Items Marked Spark Arrestor Kit Incl 417 Optional Screw 8 32 x 3 8 Optional Replacement Engine NONE Replacement S B Order from 71 999 RPM High 2900 to 3200 KEY PART NO 172 4 174 30200 178 29752 182 6201 184 26756 185 37466 186 32653 189 650839 191 36559A 195 610973 207 34336 216 33086 223 650451 224 36786 238 650932 239 8 241 36919 245 36905 250 37122 260 36980 261 30200 262 650831 263A 37184 275 37462 277 8 285 35000A 287 650926 29
14. Owners Manual CRAFTSMAN 6 75 HORSEPOWER 21 REAR DISCHARGE POWER PROPELLED ROTARY LAWN MOWER Model No 917 378410 Safety Assembly Operation Maintenance Espanol Repair Parts CAUTION Read and follow all Safety Rules and Instructions before operating this equipment Sears Roebuck and Co Hoffman Estates IL 60179 Visit our Craftsman website www sears com craftsman TABLE OF CONTENTS Wamanty Product Specifications Re Safety Rules pp 2 Service and Adjustments 13 ASSOMDIY 0 cessecescstserseeeseesersetenetees 5 Storage seseris 14 OperatlOn sisiscisicssecesscocsseisess secsccvaesiasccaes 6 Troubleshooting ee 16 Maintenance 50080066 10 Repair Parts 9 35 Maintenance 10 Pars Ordering 0 0 0 0 Back Cover WARRANTY 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 b
15. 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 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 fuels 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
16. d this manual HOWTO SET UP YOUR LAWN MOWER TO UNFOLD HANDLE IMPORTANT Unfold handle carefully so as not to pinch or damage control cables 1 Raise handles until lower handie section locks 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 Operator presence control bar Upper handle Lift up Mowing position Lower handle 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 unassembied 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
17. dle Handle Squeeze to fold bracket Hairpin cotter Operator presence control bar Upper handle Fold forward for stroage 7 J Fold backward Mowing position NN Lower handle ENGINE FUEL SYSTEM IMPORTANT Itis 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 methano 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 TROUBLESHOOTING CHART PROBLEM CAUSE CORRECTION Does not start Excessive vibration 1 Dirty air filter 1 Clean replace air filter 2 Out of fuel 2 Fill fuel tank 3 Stale fuel 3 Drain tank and refill with fresh clean fuel 4 Water in fuel 4 Drain fuel tank and carburetor and refill tank with fresh gasoline Connect wire to plug Spark plug wire is disconnected Bad spark plug Loose blade or broken blade adapter Control bar in released position Contral bar defective Replace spark plug Tighten blade bolt or replace blade adapter Depress control bar to handle Replace contro bar
18. ecause of operator abuse or negligence including bent crankshafts and the failure to maintain the equipment according to the instructions contained in the owner s manual Warranty service is available by returning the Craftsman power mower to the nearest Sears Service Center Department in the United States This warranty applies only while this product is in use in the United States This Warranty gives you specific legal rights and you may also have other rights which vary from state to state Sears Roebuck and Co D 817 WA Hoffman Estates Illinois 60179 SAFETY RULES 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 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 instructions on the machine and in the manual s
19. ed 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 SLOPE OPERATION Slopes are a major factor related to slip and fall accidents which can result in severe injury All 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 Ill 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 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 de
20. emove 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 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 ENGINE LUBRICATION Use only high quality detergent oil rated with AP service classification SF SJ Select the oil s SAE viscosity grade according to your expected operating temperature osc SAE VISCOSITY GRADES SAE 30 30 32 40 Eig v Lim te w 20 10 a 20 20 w NOTE Although multi viscosity oils 5W30 10W30 etc improve starting in cold weather these multi viscosity oils will result in increased oil consumption when used above 32 F Check your engine oil level more frequently to avoid p
21. 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 coid engine 6 TOCONVERT 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 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 Pivot pins y Grass catcher Catcher frame nook 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 Grass catcher frame Ba E handle handle is 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 spectacle
22. fects or other reproductive harm AWARNING 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 ALook for this symbol to point out important safety precautions It means CAUTION BECOME ALERT YOUR SAFETY IS INVOLVED A 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 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 ACCESSORIES 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 GRASS CATCHERS FOR SIDE DISCHARGE LAWN MOWERS GAS CANS SPARK PLUGS 6 ENGINE OIL WHEELS BLADE ADAPTERS apply to your lawn mower LAWN MOWER PERFORMANCE CLIPPING DEFLECTOR FOR REAR DISCHARGE LAWN MOWERS GRASS CATCHERS FOR REAR DISCHARGE LAWN MOWERS BELTS BLADES ASSEMBLY Read these instructions an
23. n 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 MAINTENANCE MAINTENANCE SCHEDULE FILL IN DATES AS YOU COMPLETE REGULAR SERVICE Check for Loose Fasteners Clean Inspect Grass Catcher clean ean noe Equipped Clean Lawn Mowers Lawn Mower Clean Under Drive Cover Power Propelled Mowers Check drive belt pulleys a a a ea Power Propelled Mowers Check SharpenReplace Bade wal FLubrcatoncrat Iw Clean Battery Recharge v lv Ral wa Clean Air Filter T a a A ee Inspect Muffler 2 Clean or Replace Spark Plug Replace Air Filter Paper Cartridge 1 Change more ofien when operating under a heavy load or in high ambient tamperatures LUBRICATION CHART Wheel adjuster Rear door hinge 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 t
24. ne Pulley Hi Pro Key 505 Engine Craftsman Modei No 143 016708 Hex Head Thread Roiling Srew 3 8 16 x 1 1 8 Hex Flange Nut Wheel Shoulder Bolt 5 16 18 x 33 Axle Arm Assembly RR Selector Knob Selector Spring KEY PART NO NO 1 119 2 175245X479 3 169780 4 156577 5 171407 6 136376 51793 8 66426 9 175794 10 5 11 175069X479 12 175070X479 13 0 14 9 15 9 16 3 17 4 18 1 19 153638 20 3 21 2 22 3 23 77 24 25 6 25 3 27 15031 28 5 1 30 165761X004 31 7 32 175060xX00 4 6 ROTARY LAWN MOWER MODEL NUMBER 917 378410 4 A ROTARY LAWN MOWER MODEL NUMBER 917 378410 DESCRIPTION Drive Cover Hex Flange Nut Drive Pulley Wheel Adjuster Assembly Left Gear Case Assembly Spring Locknut 1 4 20 Spring Wheel Adjuster Assembly Right Grassbag Assembly Driveshaft Cover Frame KEY PART NO 175065 132010 137052 151521 175258 137090 63601 75192 151520 175084 175739 175058 NO 28 31 32 35 36 37 38 40 41 54 55 57 NOTE All component dimensions given in U S inches 1 inch 25 4 mm DESCRIPTION Control Cable Assembly Locknut 10 24 Hex Washer Head Screw 1 4 20 x 2 12 V Belt Spring Retainer Hubcap Locknut Wheel amp Tire Assembly E Ring Pinion Dust Cover Felt Washer Washer 1 2 x 1 1 2 4 Selector Knob Pan Head Tapping Screw 10 24 x 2 3 4 6 MODEL NO 143 016708 CRAFTSMAN 4 CYCLE EN
25. ngine 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 OWINGTIPS 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 clippings It may also be necessary to reduce ground speed and or run the lawn mower over the area a second time For extremely heavy cutting reduce the width of cut by overlapping previously cut path and mow slowly For better grass bagging and most cutting conditions the engine speed should be set in the fast position 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 i
26. orage 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 4 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 When setting up your handle from the storage position the lower handle will automatically lock into the mowing position Lower han
27. ore 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 Blade adapter Trailing edge 4 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 whee 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 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 ACAUTION Disconnect spark plug wire from spark plug and place wire where it cannot come
28. ossible 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 Remove engine oil cap lay aside on a clean surface Tip lawn mower on its side as shown and drain oil into a suitable container Rock lawn mower back and forth to remove any oil trapped inside of engine Wipe off any spilled oil on lawn mower and on side of engine Fill engine with oil See Add Oil in the Operacion section of this manual Reconnect spark plug wire to spark plug my Container 12 Blade adapter Crankshaft keyway a Hardened washer 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 bef
29. 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 OPERATION KNOW YOUR 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 2 60 gt em CAUTION ENGINE ENGINE FAST SLOW CHOKE FUEL OIL DANGER KEEP HANDS OR WARNING OFF AND FEET AWAY Operator presence contro bar Starter handle Drive control lever Handle knob Engine zone control cable Gasoline cap Grass catcher Housing Engine oil cap w dipstick Drive cover Primer 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 American 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 handie to start the
30. place corroded muffler as it could create a fire hazard and or dam age SERVICE AND ADJUSTMENTS TO REMOVE REPLACE DRIVE BELT 1 Remove drive cover Remove belt from gearcase pulley by pushing down on pulley and rolling belt off it Turn lawn mower on its side with air filter and carburetor up Remove blade Remove debris shield Remove belt from engine pulley on crankshaft Install new belt by reversing above steps Always use factory approved belt to assure fit and long life Drive al cover Belt Push down N pew N 13 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 Catcher frame handle opening 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 slo
31. pstick 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 e Fill fuet tank Use fresh clean regular unleaded gasoline with a minimum of 87 octane Do not mix oil with gaso line Purchase fuet in quantities that can be used within 30 days to assure fue freshness MULCHING MOWINGTIPS IMPORTANT For best performance keep mower housing free of built up grass and trash See Cleaning in Maintenance section of this manual The special mulching blade will recut the grass clippings many times and reduce them in size so that as they fall onto the lawn they will disperse into the grass and not be noticed Also the mulched grass will biodegrade quickly to provide nutrients for the lawn Always mulch with your highest engine blade speed as this will provide the best recutting action of the blades Avoid cutting your lawn when it is wet Wet grass tends to form clumps and interferes with the mulching action The best time to mow your lawn is the early 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 reduce pushing effort and to keep from overloading the e
32. s or standard safety glasses HOWTO USE YOUR LAWN MOWER ENGINE SPEED The engine speed was set at the factory for optimum performance Speed is not adjustable ENGINE ZONE CONTROL ACAUTION Federal regulations require an engine control to be installed on this lawn mower in order to minimize the risk of blade contact injury Do not under any circumstances attempt to defeat the function of the operator control The blade turns when the engine is running Your lawn mower is equipped with an operator presence control bar which requires the operator to be positioned behind the lawn mower handle to start and 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 e 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 Lower Wheels for High Cut WEAR YOUR SAFETY GLASSES FORESIGHT IS BETTER THAN NO SIGHT Plate Fab Raise Wheels for Low Cut AWARNING Experience indicates that alcohol blended fuels called gasohol or using ethanol or methanol can attract moisture which leads to separation and
33. ting to start and do not repeat priming steps DRIVE CONTROL Self propelling is controlled by holding the operator presence control bar down to the handie and pushing the drive control lever forward until it clicks then releasing the lever Forward motion will stop when the operator presence contro bar is released To stop forward motion without stopping engine release the operator presence control bar slightly until the drive control disengages Hold operator presence control bar down against handle to continue mowing without self propelling To keep drive control engaged when turning corners push down on handle and lift front wheels off ground while turning lawn mower Operator presence control bar Drive control To engage drive control Drive 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 tine 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 di
34. w 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 properly 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 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 handie to pivot to the desired adjustment position 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
35. ype lubricant sparingly 2 Service more often when operating in dirty or dusty conditions 3 Replace blades more often when mowing in sandy soit 4 Charge 48 hows at end of 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 All adjustments in the Service and Adjustments section of this manual should be checked at least once each season Once a year replace the spark plug clean or replace air filter element and check blade for wear A new spark plug and clean new air filter element assures proper air fue 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 PRODUCT SPECIFICATIONS SERIALNUMBER DATE OF PURCHASE GASOLINE CAPACITY TYPE 1 5 QUARTS UNLEADED REGULAR OIL TYPE API SF SJ SAE 30 ABOVE 32 F SAE 5W 30 BELOW 32 F OIL CAPACITY 20 OZS SPARK PLUG GAP 045 CHAMPION RESISTOR TYPE RJ19LM4 BLADE BOLT TORQUE 35 40 FT LBS The model and serial numbers will be found on a decat attached to the rear of the
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