Craftsman 917.378311 Owner'S Manual Download Page 1 | Manualshive

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Summary of Contents for 917.378311

Page 1: ...TARY LAWN MOWER Model No 917 378311 Safety Assembly Operation Maintenance EspaSol 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 ...

Page 2: ... state SEARS ROEBUCKAND CO D 817 WA HOFFMAN ESTATES ILLINOIS 60179 IMPORTANT This cuttingmachineis capable of amputatinghandsand feet and throwingobjects Failureto observethe following safetyinstructions could resultin sedousinjuryor death I GENERAL OPERATION Read understand end follow all instructions on the machine and in the manual s before starting Be thor oughly familiar with the controls and...

Page 3: ...the watchful care of another responsible adult be aled 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 flamma...

Page 4: ...ead 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 mode...

Page 5: ...ional loose pads 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 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 uppe...

Page 6: ...cap Primer Housing COVet Engine oil cap w dipstick IMPORTANT This lawn mower is shipped WITHOUT OIL OR GASOLINE in Wheet adjuster the engine on each wheel MEETS CPSC SAFETY REQUIREMENTS Sears rotarywalk behind power lawn mowers conformto the safetystandards of the American NationalStandards Instituteand the U S Consumer ProductSafety Commission The blade turnswhen the engine is runninc_ Operator p...

Page 7: ... 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 g position adjusters if so equipped allow lever to be positioned between the plate tabs PlateTab LowerWheelsfo...

Page 8: ...with a minimum of 87 octane Do not mix oil with gasoline Purchase fuel in quantities that can be used within 30 days to assure fuet freshne_ _WARNING Experience indicates that alcohol blended fuels called gasohol or using ethanol or methanol can attract moisture which leads to separation and formation of acids during storage Acidic gas can damage the fuel system of an engine while in storage To av...

Page 9: ...ilt 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 p...

Page 10: ...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 ...

Page 11: ...ng 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 Po...

Page 12: ...teeth 4 Put wheelsback in place NOTE If after cleaning the drivewheels donotturnfreely contacta Sears or other qualifiedservicecenter GEAR CASE To keep your drivesystemworking properly the gear case and area aroundthe ddveshouldbe kept clean and free of trashbuild up Clean under the drivecovertwice a season The gear case is filled withlubricantto the properlevelat the factory The only time the lub...

Page 13: ...gning the tab with the slot 6 Push in on cover and turn counter clockwise to tighten Turn Collar Clip Clockwise to remove 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 fre...

Page 14: ...case 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 debris shield 5 Remove belt from engine pulley on crankshaft 6 Install new belt by reversing above steps 7 Always use factory approved belt to assure fit and long life TO ADJUST HANDLE The handle can be mounted in a high or low position The mounting ...

Page 15: ...ine speed or itmay 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 properly due to suspected carburetor problems take your lawn mower to a Sears or othe...

Page 16: ...Foldforward f J l stroage _ J _ I Y 7 3 _ k _ _ _ _ _J_ y Mowing positioo 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 sep...

Page 17: ...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 1 Worn bent or loose blade 2 Wheel heights uneven 3 Buildup of grass leaves and trash under mower 1 Worn ...

Page 18: ...ning 1 Adjust or replace drive with drive control engaged control cable 2 Belt not driving 2 Put belt on pulleys or replace belts if broken 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 Raise cutting height 1 Grass is too high or wheel height is too low 2...

Page 19: ...et 11 131484 3 137053 Shifter 12 700343 4 57072 Seal 13 86447 6 48373 Gear Case Halves Kit 14 137050 Includes Key NOS 4 15 750436X and 7 16 750369 7 77881 Bearing 17 12000 _3 8 137051 WormShaft 18 850848 19 81585X004 NOTE All component dimensions given in U S inches 1 inch 25 4 mm DESCRIPTION Drive Shaft HardenedWasher Clutch Yoke Bushing Plug Helical Gear Clutch Jaw Grease E Ring Hi ProKey Spring...

Page 20: ...ROTARY LAWN MOWER MODEL NUMBER 917 378311 61 27 10 F 16 12 31 _ 3O 14 35 39 t 70 20 37 3s _ 2 13 27 28 41 ...

Page 21: ...r Wheel Adjusting Bracket Right Thread Cutting Screw w Sems 5 16 18 x 3 4 KEY PART NO NO DESCRIPTION 38 7515_ Nut 39 173569X479 Handle Bracket Assembly Left 40 173570X479 Handle Bracket ASSembly Right 41 150406 Hex Head Thread Roiling Screw 5 8 16 x 1 1 8 44 172835 Lawn Mower Housing Incl Key 14 15 51 52 46 851514 Blede Adapter 47 141114 BJade 22 48 851074 Hardened Washer 49 850263 Helical Washer ...

Page 22: ...8 54 ROTARY LAWN MOWER MODEL NUMBER 917 378311 18 18 14 16 14 41 12 13 11 13 8 26 ...

Page 23: ...ng Retainer Hubcap Locknuf Wheel Tire Assembly E_Ring Pinion Dust Cover Felt Washer Washer 1 2 x 1 1 2 x 134 Selector Knob Pan Head Tapping Screw 10 24 x 2 3 4 KEY PART NO NO DESC_PTION 28 31 3_ 35 36 37 38 4O 41 54 55 57 154990 DriveCover 132010 Hex Flange Nut 137052 Drive Pulley 151521 Wheel Adjuster Assembly Left 702511 Gear Case AsSembly 137090 Spnng 63601 Locknut 1 4 20 75192 Spring 151520 Wh...

Page 24: ...CRAFTSMAN 4 CYCLE ENGINE MODEL NO 143 016700 9OO _ 282_ 11o 285 40O 135 130 120 416 119 125 275 182216 19 2_ 224 174 223 184 38 207 82 370C _ 81 _ jj 238 250 195 42 ...

Page 25: ...ywheel Key 380 640271 90 611112 FlywheelA 390 590739 92 650815 Belleville Washer 93 650816 Flywheel Nut 400 36792B 100 34443C Solid State Ignition 101 610118 Spark Plug Cover 416 36085 103 651007 Screw TorxT 15 10 24 x 15 417 650760 16 164 37486 Cam Bushing 900 110 37047 Ground Wire 900 119 36787 Cylinder Head Gasket 120 36825 Cylinder Head 125 36780 Exhaust Valve 1 32 OS _nct 151 37288 Exhaust Va...

Page 26: ...CRAFTSMAN 4 CYCLE ENGINE MODEL NO 143 016700 _ 37 _m37 40 44 ...

Page 27: ...gine Parts Lisl Throttle Shaft Lever Assembly Throttle Return Spring Dust Seal Washer Dust Seal Throttle Throttle Shutter Shutter Screw Fuel Fitting Throttle Crack Screw Idle Speed Screw Tension Spring Idle Restdctor Screw Idle Restrictor Scrwe Cap Black Roar Bowl Float Shaft Float Float Bowl 0 Ring Inlet Needle Seat Clip Incl 31 Spring Clip Primer Bulb Retainer Ring Main Nozzle Tube Carburetor Tu...

Page 28: ...90702 590599A 590600 590696 590601 590697 590698 590699 590700 590703 590535 590701 DESCRIPTION Recoil Starter Spring Pin Incl 4 Washer Retainer Washer Brake Spring Starter Dog Dog Spring Pulley Rewind Spring Ass y Starter Housing Ass y 40 degree grommet Starter Hope 98 X 9 64 dia Starter Handle 46 ...

Page 29: ...2 13 14 PART NO DESCRIPTION 590739 Rewind Starter 590740 Retainer 590616 Starter Dog 590617 Dog Spring 590618A Pulley 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 47 ...

Page 30: ... owner s manuals that you need to do it yourself call Sears PartsDireetSM 1 800 366 PART 6ar 11 p m CST 1 800 366 7278 7 days a week www sears condpar tsdirect To purchase or inquire about a Sears Service Agreement 1 800 827 6655 7 am 5 p m CST Mon Sat Para pedir serviciode reparacibna domicilio y para ordenarpiezas conentrega a domicilio 1 888 SU HOGAR s 1 888 784 6427 Au Canada pour serviceen fr...

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