Page 1: ...L 17 378 70 OWNER S MANUAL Assembly Operation Maintenance Service Adjustments Repair Parts Caution Read and Follow aHJSafety Ru_es and instructions Before Operating This Equipment L rl1 I II l 1 1 i l ...
Page 2: ... or under rotating parts Keep clear of the discharge opening at all times Always stop the engine whenever you leave or are not using your mower or before crossing driveways walks roads and any gravePcovered areas Never direct discharge of material toward bystanders nor allow anyone near the mower while you are operating it Before cleaning inspecting or repairing your mower stop the engine and make...
Page 3: ...t your nearest Sears store for details CUSTOMER RESPONSiBiLiTIES Road and observe the safety rules Follow a regular schedule in maintaining caring for and using your lawn mower Follow the instructions under Maintenance and Storage sections of this Owner s Manual LtMaTED ONE YEAR WARRANTY ON CRAFTSMAN POWER MOWER For one year from date of purchase when this Craftsman Lawn Mower is maintained lubric...
Page 4: ...e B Storage 14 H Handle Adjustment 13 Assembly 5 L Lubrication Engine 9 Discharge Guard Hinge Pin g Handle Bracket Mounting Pin 9 Wheel Adjuster g Brake Spring Bracket 9 M Maintenance Agreement 3 Air Filter 11 Blade Care Replacement 10 Drive Wheels 10 Englne 11 Lubrication g Spark Plug tl Mowing Tips 8 0 Oil Engine 8 Storage 14 Operation Operating Lawn Mower 6 8 Control Bar 8 Throttle Control B Op...
Page 5: ...corners of carton and lay end panel down flat o Remove all packing materials except padding be tween upper and Iower handle and padding holding operator presence control bar to upper handle Roll lawn mower out of carton and check carton thorougNy for additionaI loose parts HOW TO SET UP YOUR LAWN MOWER TO UNFOLD HANDLE See Fig 1 o Raise handles until tower handle section tocks into place in mowing...
Page 6: ... COVER DISCHARGE GUARD WHEELADJUSTER ON EACH WHEE_ HOUSING FIG 2 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 Commission The blade turns when the engine is running OPERATOR PRESENCE CONTROL must be held down to the handle to start the engine Release to stop ...
Page 7: ...it clicks then release the lever o Forward motion wiff stop when the operator presence control bar is released To stop forward motion without stopping engine releasethe operator presence control bar slightty until the drive control disengages Hold operator presence contro bar down to handle to con tinue mowing without self propelling To keep drive control engaged when turning corners push down on ...
Page 8: ...s in the fuel tank or permanent damage may occur TO START ENGINE To start a cold engine push primer five 5 times before trying to start Use a firm push This step is not usually necessary when starting an engine which has atready run for a few minutes o Hold operator presence control bar down to the handte and putt starter handle quickly DO NOT allow starter rope to snap back o To STOP engine relea...
Page 9: ...stments 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 o Once a year repiace the spark plug clean or replace air filter element and check blade for wear A new spark plug and clean new air fitter element assures proper air fuel mixture and helps your engine run better ...
Page 10: ...ed TO SHARPEN BLADE o Theblade can be sharpened with a fife or on a grinding whee Do not attempt to sharpen while on the mower To check blade balance drive a nail intoa 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 th...
Page 11: ...ver Clean the inside of the cover and the collar to remove any dirt accumulation Insert new filter into cover o Put air filter cover and filter into collar aligning the tab with the slot Push in on cover and turn clockwise to tighten MUFFLER Inspect and replace corroded muffler as it could create a fire hazard and or damage SPARK PLUG Change your spark plug each year to make your engine start easi...
Page 12: ...d carefully slip belt off over blade CAUTION Sharp edges of blade can cut belt Install new belt by reversing above steps Move belt snubber back in place and tighten hex head sc rew NOTE Belt snubber clears belt by approx 1 32 inch when installed Always use factory approved belt to assure fit and long life TO ADJUST DRIVE CONTROL CABLE See Fig 10 A drive control cable that needs adjustment wili kee...
Page 13: ...e operator presence control bar to the upper handle CAUTION The operator presence contro bar must pivot freely to permit blade brake engagement when control bar is released Do not overtighten the fasteners holding the controts to the upper handle To change from medium low to high position only the upper handle section will have to be turned over See Fig 12A To change from medium low to low positio...
Page 14: ... THE FUEL SYSTEM OF AN ENGINE WHILE IN STORAGE o Drain the fuel tank Start the engine and let it run untt the fuel lnes and carburetor are empty o Never use engine or carburetor cleaner products in the fuel tank or permanent damage may occur Use fresh fuet next season NOTE Fuel stabilizer is an acceptabIe alternative in minimizing the formation of fuel gum deposits during stor age Add stabiizer to...
Page 15: ...g Bracket Shifter Assembly Seal Grooved Pin 1 8 x 1 2 Gear Case Halves fnct Upper Lower Halves Incl Ref 4 5 7 Bearing Spring Bracket Drive Shaft Hardened Washer Yoke Clutch Grooved Pin 1 8 x 3 4 REFo PART NO NO 3 86447 t4 83659 t5 750436 16 750355 17 STD581050 18 850848 19 83720 20 65692 21 83680 22 STD522512 DESCRIPTION Plug Hetical Gear Jaw Clutch Grease E_Ring Hi Pro Key Worm Shaft Woodruff Key...
Page 16: ...REPAIR PARTS CRAFTSMAN 22 ROTARY LAWN MOWER MODEL NO 917o378170 t ...
Page 17: ...ctor Spring 39 87877 Selector Knob KEY PART NO NO 40 85021X004 4 62335 42 84921 43 87748 44 52160 45 751592 46 85483 47 59289 48 55187 49 STD541425 50 85t201X004 5t 85100O 52 850998 53 851084 54 850263 55 85t 074 56 850973 57 851514 59 87587X479 60 88404 479 62 48 92 63 85543 64 87677 68 t32423 132421 DESCRIPTION Axle Arm Assembly Belleville Washer Shoulder Bolt Wheel Tire Assembly Washer Locknut ...
Page 18: ...REPAIR PARTS CRAFTSMAN 22 ROTARY LAWN MOWER MODEL NO 917 378170 ...
Page 19: ...19 86274 Belleville Washer 20 86273 Bearing Spacer 21 76401 Dust Cover 22 74507 Pinion 23 STD581050 E Ring KEY PART NO NO 24 87729 25 86960 26 52160 27 85179 28 77400 29 132333 30 87866 31 750097 32 750293 33 750108 34 83700 35 48269 36 STD582043 37 83681 38 STD580009 39 75192 40 STD580014 41 83632 42 751001 43 48175 44 48174 45 86012 46 851552 DESCRiPTiON Wheel Tire Assembly 8 00 x 1 75 Wheel Bus...
Page 20: ...CRAFTSMAN 4oCYCLE ENGINE MODEL NUMBER 1 3 424072 20 ...
Page 21: ...50884 Plug Oil Drain includes Ref 73 290 30705 Gasket Oil Drain Plug Not 292 26460 Required With Plastic Oil Plug 298 28763 Seal Oil Shaft Governor 300 Washer Flat Gear Assy Governor Incl No 81 301 Spool Governor 305 Ring Retaining 306 Screw Seres Hex 1 4 20 x 1 1 4 307 Key Flywheel 309 Flywheel Washer Belleville 310 Nut Flywheel 313 Solid State Assembly 327 Cover Spark Plug 380 Screw Sems Torx T ...
Page 22: ...e Seat and Clip Includes Reference Number 31 Spring Clip Primer Bulb Retainer Ring High Speed Bow Nut Bowl Nut Washer Welch Plug Atmospheric Vent NOTE All component dimensions given in U S inches 1 inch 25 4 mm REWIND STARTER NO 590686 _3 22 REF PART NO NO DESCRIPTION 590686 Starter Rewind 1 590599A Pin Spring Includes Reference 4 2 590600 Washer 3 590615 Retainer 4 590601 Washer 5 590598 Spring B...
Page 23: ...el brake is on when control bar is released 2 Bent engine crankshaft 3 Blade adapter broken 4 Blade dragging in grass I Drive wheels not turning with drive control engaged 2 Belt not driving t Cutting height too low 2 Lift on blade worn off 3 Catcher not venting air t Grass is too high or wheel height is too bw 2 Rear of lawn mower housing blade dragging in grass 3 Grass catcher too fuIt 4 Handle ...
Page 24: ...rts listed here in may be ordered through Sears Roebuck and Co Service Centers and most Retail Stores WHEN ORDERING REPAIR PARTS ALWAYS GiVE THE FOLLOWING iNFORMATiON PRODUCT ROTARY LAWN MOWER MODEL NUMBER 9t7 378170 ENGINE CRAFTSMAN MODEL NUMBER 143 424072 PART NUMBER o PART DESCRIPTION Your Sears merchandise has added value when you consider that Sears has service units nationwide staffed with S...
