Owner's Manual ® 4.5 HORSEPOWER 20" SmDE DISCHARGE ROTARY LAWN MOWER Model No. 917.387221 ,, o ,, o o o Safety AssembBy Operation Maintenance Espafiol Repair Parts CAUTRON: Read and follow all Safety Rules and Instructions before operating this equipment Sears, Roebuck and Co.
Warranty Safety Rules Assembly Operation Maintenance Schedule Maintenance 2 2 4 6 10 10 Product Specifications Service and Adjustments Storage Troubleshooting Repair Parts Parts Ordering 11 13 14 15 32 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 o
hot.Allowtheengineto coolforseveral minutesbeforefillingthegastank,Clean offanyspilledgasolinebeforestartingthe engine. ° Alwaysmakewheelheightadjustments beforestartingyourmower.Never attempttodothiswhiletheengineis running_ • Mowon_y in daylight or good artificial lighL OPERATION: o Keep your eyes and mind on your mower and the area being cut. Do not let other interests distract you. o Do not mow wet or slippery grass.
Theseaccessorieswereavailablewhenthis lawnmowerwasproduced.Theyarealso availableat mostSearsretailoutletsandservicecenters.MostSearsstorescanalso orderrepairpartsfor you,whenyouprovidethe modelnumberofyourlawnmower. Someof theseaccessoriesmaynotapplyto yourlawnmower.
Operator presence control bar Upper handle Lift up Mowing position Lower handle KNOW YOUR LAWN MOWER READ THIS OWNER'S MANUALAND SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER, Compare the illustrations with your lawn mower to familiarize yourself with the location of vadous controls and adjustments. Save this manual for future reference. ............... ,,,,,,i H ,i,,,,,i _ .... ii ................ ........
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 the spectacles or standard safety glasses° ENGINE SPEED The engine speed was set at the factory for optimum performance. Speed is not adjustable, ENGINE = Lift discharge guard and remove mulcher plate.
alcoholblended fuels(calledgasoholorusing ethanolormethanol) canattractmoisture which leadstoseparation andformation ofacids duringstorage.Addicgascandamagethefuel systemofanenginewhileinstorage.Toavoid engineproblems, thefuelsystemshouldbe emptiedbeforestorageof30daysorlonger. Drainthegastank,starttheengineandletit rununtilthefuellinesandcarburetor areempty. Usefreshfue!nextseason.
MAINTENANCE"'SCHEDULE ..... ___ F'LL 'N DATES /__7_,y AsYouCOMPLetE RE U R SERV, OE Check for Loose Fasteners , i Clean!Inspect Grass Catcher (if Equipped) M Clean 6/ Check,Engine G clean Air Rler N I ,, 6/' , _ ........ o, ' _#' . L__ , I _'4 _ a i i ..................... _ -_ ,,, Oil Level 6/ V' I (power..Pr0pe!!edMowers) Check/Sharpen!Replace Blade E .... SERVICE DA.: _ Lawn Mower Lubrication Chart Clean BatterylRecharge (Electric Start Mowers) ............... ....
: RODUCT SPECnFnCATaONS MODEL NUMBER SERIAL 917.387221 NUMBER DATE OF PURCHASE HORSEPOWER: 4°5 DISPLACEMENT: 11°5 CUo IN. GASOLINE 1.5 QUARTS CAPACITY/TYPE: UNLEADED OIL TYPE (API-SF/SG/SH): REGULAR SAE 30 (ABOVE 32°F) SAE 5W-30 (BELOW 32°F) OIL CAPACITY: SPARK PLUG(GAP: 20 OZSo ,030") VALVECLEARANCE: CHAMPION J19LM INTAKE: .004 - .008 EXHAUST: .-O04 - .008 SOLID STATE IGNITION AIR GAP: .0125 IN. BLADE BOLT TORQUE: 35-40 FT. LBS.
NOTE:Wedonotrecommend sharpening blade- butifyoudo,besurethebladeis balanced. Crankshaft Blade SAE VISCOS f'_" GRADES keyway _PEF_TURE RANGE ANT IC_=ATED B-_FORE NEXT O_L CHANGE Check your engine oil level more frequently to avoid possible engine damage from running low on oi!. washer Lock washer TO SHARPEN edge Changethe oil after the firsttwo hours of operation and every 25 hours thereafteror'at leastoncea year if the lawnmower is not used for 25 hours in one year.
PutairfiltercoverandfilterintocoUar aligning thetabwiththeslot. Pushinoncoverandturnclockwise to tighten. ;ol_ar Clip Turn counterto remove Air filter Tab Turn clockwise to tighten Air filter cover 4UFFLER nspect and replace corroded muffler as it :ouldcreate a fire hazard and/or damage, _,PARK PLUG ;hange your spark plug each year to make tour engine start easier and run better. Set _parkplug gap at .030 inch° 3AUTION: BEFORE PERFORMING ANY ._ERVICE OR ADJUSTMENTS: Release control bar.
Shipping position Medium low Medium high x_X_. _ Lower handle Squeeze toX'x_'x,X Hairpin clip Mounting bracket ENGINE 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 an authorized service center for repair and adjustment.
ENGINE FUELSYSTEM IMPORTANT: It is important to prevent gum deposits from forming in essential fue! 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 methanot) can attract moisture which leads to separation and formation of acids during storage.
TROUBLESHOOTING CHART CORRECTION PROBLEM CAUSE .o otpower o Rear of lawn mower housing 1, ...._=-- = Set to "Higher Cut" pos_on. or cutting blade dragging in heavy grass, o Cutt_g too much grass. ° Set to"Higher Cut" position. • Clean/replace air filter: o Clean underside of mower , Dirty air filter: = Buildup of grass, leaves, and trash under mower: housing. ° Checkoil level • Cut at slower walking o Too much oil in engine, • Walking speed too fast. speed.
