Page 1: ...rsepower Power Propelled 21 Rear Discharge Model No 917 378351 CAUTION Read and follow all Safety Rules and Instructions before operatingthis equipment Sears Roebuck and Co Hoffman Estates IL 60179 U S A Visit ourCraftsman website www sears com craftsman ...
Page 2: ...ed States This warranty applies only while this product is used 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 IMPORTANT This cutting machine is capable of amputating hands and feet and throwing objects Failure to observe the following safety instructio...
Page 3: ...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 I1 SLOPE OPERATION Slopes are a major factor related to slip and fall accidents which can result in severe injury All slopes r...
Page 4: ...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 These accessories were available when this lawn mower was produced They are not shipped w...
Page 5: ...cking 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 HOW TO 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 handle section locks into place i...
Page 6: ...rass catch_ Gasoline filler cap Air filter Engine oil cap with dipstick cover Housing adjuster on each wheel IMPORTANT This lawn mower is shipped WITHOUT OIL OR GASOLINE in the engine 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 w...
Page 7: ...gine 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 7 TO ADJUST CU I rlNG HEIGHT Raise wheels for ...
Page 8: ... 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 to bottom of tank filler neck Do not overfill Use fresh clean regular unleaded gasoline with a minimum of 87 octane Do not mix oil with gasoline Purchase fuel in quantities...
Page 9: ...ollect 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 MOWING TIPS IMPORTANT For best performance keep mower housing free of built up grass and trash See CLEANING in the Maintenance section of this manual The special...
Page 10: ...ceive 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 _ Wheel adjuster each wheel season Once a year replace the spark plug clean or replace air filter element and check bl...
Page 11: ...nd 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...
Page 12: ... Do not substitute ENGINE LUBRICATION Use only high quality detergent oil rated with API service classification SF SJ Select the oirs SAE viscosity grade according to your expected operating temperature f SAE VISCOSITY GRADES 1 I J T i r i _ I_F F 20 r 0 30 32 40 r 60 80 _ 100 C 3o 2o 1 o 0 10 _1 3o 40 TEMPEfiATUAE RANGE ANTICIPaTEO _FdRE N XT C_L CHANGE NOTE Although multi viscosity oils 5W30 10W...
Page 13: ...connect 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 h...
Page 14: ... to raise or lower handle 5 Squeeze lower handle in and position holes onto mounting pins on handle bracket 6 Reassemble upper handle and all parts removed from lower handle 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...
Page 15: ...curely 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...
Page 16: ...nit 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 co...
Page 17: ...ft on blade worn off Catcher not venting air Grass is too high or wheel height is too low 2 Rear of lawn mower housing or cutting blade dragging in grass 3 Grass catcher too full 4 Handle height position not right for you 1 Belt wear 2 Belt off of pulley 3 Drive cable worn or broken 4 Dirt in drive pinions 1 Replace blade Tighten blade bolt 2 Set all wheels at same height 3 Clean underside of mowe...
Page 18: ... en uso en los Estados Unidos Esta Garantia le otorga derechos legales especfficos y puede que tambi_n tenga otros derechos que Marian de estado a estado SEARS ROEBUCK AND CO D 817WA HOFEMAN ESTATES IL 60179 USA IMPORTANTE Esta maquina cortadaora es capaz de amputar las manos y los manos y los pies y de lanzar objetos Si no se observan las instrucciones de seguridad siguientes se pueden producir l...
Page 19: ...icar qua existe alguna averia Siempre use galas de seguridad o anteojos con protecci6n lateral cuando opere la segadora II OPERAClON SOBRE LAS CUESTAS Los accidentes ocurren con m s frecuencia en las cuestas Estos accidentes ocurren debido a resbaladas o cafdas las cuales pueden resultar en graves lesiones Operar la recortadora en cuestas requiere mayor concentraci6n Si se siente inseguro en una c...
Page 20: ...permitir que objetos sean disparados Controlar frecuentemente y cuando sea necesario sustituir con partes aconsejadas por el fabricante Las cuchillas de la segadora esta n afiladas y pueden cortar Cubrir las hojas o Ilevar guantes y utilizar precauciones especiales cuando se efect6a mantenimiento sobre las misrnas No cambie el ajuste del regulador del motor ni exceda su velocidad Estos accesodos e...
Page 21: ...la barra de los control que exige la presencia del operador junto con el mango superior 4 Haga rodar la segadora hacia afuera de la caja de cart6n y revfsela cuidadosamente para verificar si todavfa quedan partes sueltas adicionales COMO PREPARAR SU SEGADORA PARA DESDOBLAR EL MANGO IMPORTANTE Despliegue el mango con mucho cuidado para no pellizcar o dafiar los cables de control 1 Levante los mango...
Page 22: ...el deposito de aceite del motor con varill Cubie_ade Caja Ajustador de la rueda en cada rueda IMPORTANTE Este cortac_sped viene SIN ACEITE O GASOLINA en motor CUMPLE CON LOS REQUISITOS DE SEGURIDAD DE LA CPSC Las segadoras a motor que se conducen desde la parte de atrds retaterias Sears cumplen con los estandares de seguridad del American National Standards Institute y de la U S Con sumer Product ...
Page 23: ...bajo en contra del mango para continuar segando sin autoimpulsi6n Para mantener el control de la impulsion enganchado cuando se de vuelta en Ins esquinas empuje el mango hacia abajo y levante Ins ruedas delanteras fuera del suelo al girar la segadora Barrade controlque exige la presenciadel operador _ _ Control 2 pulsi6n __ __ i DELAIMPULSION PARA AJUSTAR LA ALTURA DE CORTE Levante las ruedas para...
Page 24: ... de nivel Cambie el aceite despu_ s de 25 horas de operaci6n o una vez por temperada Puede necesitar cambiar el aceite rnas a menudo cuando las condiciones son polvorosas e sucias AGREGUE GASOLINA Llene el estanque de combustible hasta la parte inferior del cuello de relleno del estanque de gasolina No Io Ilene demasiado Use gasolina regular sin plomo nueva y limpia con el minimo de 87 octanos No ...
Page 25: ...se con mugre y polvo con el uso y los recogedores recaudar n menos c6sped Para evitar este rocie el recogedor con la manguera de agua regularmente y dejelo secarse antes de usarlo Mantenga la parte superior del motor alrededor del arrancador despejada y sin recortes de c6sped y paja Esto ayudar_ el flujo del aire del motor y extender su duraci6n 25 CONSEJOS PARA SEGAR Y ACOLCHAR IMPORTANTE Para ob...
Page 26: ...operador tiene que mantener la segadora seg0n las instrucciones descritas en este manual Hay algunos ajustes que se tienen que hacer en forma peri6dica para poder mantener su unidad adecuadamente Todos los ajustes en la secci6n de Servicio y Ajustes de este manual tienen que set revisados pot Io menos un vez por cada temporada Una vez al a 5o cambie la bujia limpie o cambie el elemento del filtro ...
Page 27: ...lla y revise el cubo interior de la ranura del adaptador de la cuchilla La ranura tiene que estar en buenas condiciones para que funcione en forma adecuada Cambie el adaptador si est dafiado PARA CAMBIAR LA CUCHILLA 1 Ponga el adaptador de a cuchilla en el ciguehal del motor Asegt_rese que la ranura del adaptador y que el chavetero del cigueSal esten alineados 2 Ponga la cuchilla en el adaptador d...
Page 28: ...sita atenci6n es cuando se le ha prestado servicio a la caja de engranajes Si se necesita lubricante use solamente aciete Elf Parte No REDUCTELF 100 No use substitutos MOTOR LUBRICACI _N Use solamente aceite de detergente de alta calidad clasificado con la clasificaci6n SF SJ de servicio API Seleccione la calidad de viscosidad SAE segun su temperatura de operaci6n esperada AVISO A pesar de que los...
Page 29: ...despues de cada uso _IPRECAUCI6N Desconecte el alambre de la bujfa y p6ngalo en donde no pueda entrar en contacto con 6sta Limpie la parte inferior de su segadora raspdndola para remover la acumulaci6n de cdsped y basura Limpie el motor a menudo para evitar que se acumule la basura Un motor tapado funciona mds caliente y se acorta su duraci6n Mantenga las superficies pulidas y las ruedas sin gasol...
Page 30: ...ovedo de las clavijas de montaje 4 Gire el mango inferior per encima para levantar e bajar el mango 5 Vuelva a montar las clavijas de horquilla por encima de las clavijas de montaje 6 Vuelva a montar el mango superior y todas las partes removidas del mango inferior Posicion _ _ Posici6n F_ _ parasegar _ _ _J paresegar 1 de I i IlL Puntal _ 2 _ Itl Clavijade _ _del mango rnontaje POSICION BAJA Pong...
Page 31: ...uebradas o desgastadas C mbielas si es necesario 4 Retoque todas las superficies que est_n oxidadas o con la pintura picada use una lija antes de pintar MANGO Puede doblar el mango de su segadora para almacenada 1 Apriete los extremos inferiores del mango inferior entre si hasta que el mango inferior quede separado del puntal del mango luego mu6valo hacia adelante 2 Suelte los pernos de montaje de...
Page 32: ...e Cubra su unidad con un forro protector adecuado que no retenga la humedad No use pl_ stico El pl_istico no puede respirar Io que permite la formaci6n de condensaci6n Io que producir la oxidaci6n de su unidad IMPORTANTE Nunca cubra la segadora mientras el motor y las areas de escape to davia estan ealientes _I_PRECAUCI _N Nunca almacene la segadora con gasolina en el estanque dentro de un edifici...
Page 33: ...l mango no adecuada para usted 1 Desgaste de la correa 2 La correa est fuera de la polea 3 Cable de la impulsion usado o roto 4 Suciedad en piSones del mecanismo impulsor CORRECCION 1 Ajuste a la posici6n de Code m_ s alto 2 Ajuste a la posici6n de Code m_ s alto 3 Limpie cambie el filtro de aire 4 Limpie la pade inferior de la eaja de la segadora 5 Revise el nivel del aceite 6 Corte a una velocid...
Page 34: ...SERVICE NOTES 34 ...
Page 35: ...r Clutch 5 183501 Spring Return 6 183502 Shaft Input 7 183503 Dog Movable 8 183504 Dog Fixed 9 183505 Wire Formed 10 183506 Bearing Ball 11 183507 Fork Shift 12 183508 Seal Output Shaft 13 183509 Washer 14 183510 Seal Case 15 183511 Bushing 16 183512 Shaft Output 17 183513 Screw 18 183514 Seal Input Shaft NOTE Use Dow Coming 709 to reseal Gear Case Halves NOTE All component dimensions given in U S...
Page 36: ...CRAFTSMAN ROTARY LAWN MOWER MODEL NUMBER 917 378351 36 21 15 10_ 12 4 31 38 37 43 46 25 ...
Page 37: ...acket Assembly Right 48 851074 Spring LH 49 850263 Spring RH 50 851084 Keps Locknut 1 4 20 83 165108 Rope Guide 161058 Rear Skirt 183408 Hinge Screw 1 4 20 x 1 1 4 Engine Pulley Hi Pro Key 505 Engine Craftsman Model Number 143 026200 See Breakdown Hex Head Thread Rolling 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 Nut 5 16 ...
Page 38: ...54 CRAFTSMAN ROTARY LAWN MOWER MODEL NUMBER 917 378351 18 18 15 14 16 11 8 11 16 14 13 12 41 38 36 55 28 5 I ...
Page 39: ... 2 12 31 132010 V Belt 32 137052 Spring Retainer 35 151521 Hubcap 36 180184 Locknut 37 137090 Wheel Tire Assembly 38 63601 E Ring 41 151520 Pinion 54 175084 Dust Cover 55 175739 FeltWasher 57 175058 Washer 1 2 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 See Breakdown Sphng Locknut 1 4 20 Wh...
Page 40: ...CRAFTSMAN 4 CYCLE ENGINE MODEL NUMBER 143 026200 900 400 135 O_ O 370K 370 _ 390 26O 241 238 245 250 4O ...
Page 41: ...aining Ring 279 28763 Screw 10 32 x 39 64 Connecting Rod Assembly 280 37717 Heat Shield IncludesKeyNumber46 285 35000A StarterCup Connecting Rod Bolt 287 650926 Screw 8 32 x 21 64 Valve Lifter 290 29774 Fuel Line Camshaft Exhaust MCR 292 26460 FuelLine Clamp Includes Key Number 104 298 28763 Screw 10 32 x 39 64 Oil Pump Assembly 300 36916 Fuel Tank Includes Key Mounting Flange Gasket Numbers292 an...
Page 42: ...e Return Spring Dust Seal Washer Dust Seal Throttle Shutter Shutter Screw Fuel Fitting Screw Throttle Crack Idle Speed Tension Spring _dle Restrictor Screw Idle Restdctor Screw Cap Float Bowl Float Shaft Float Plastic Float BowlO Ring Inlet Needle Seat Clip includes Key 31 Spring Clip Primer Bulb Red Retainer Ring Main Nozzle Tube Bowl Vent Tube Extension O Ring Main Nozzle Tube High Speed Bowl Nu...
Page 43: ...ssembly 40 degree Grommet 590535 Starter Rope 98 x 9 64 diameter 590701 Starter Handle NOTE All component dimensions given inU S inches 1 inch 25 4 mm _ 14 13 12 KEY PART NO NO DESCRIPTION 590737 Rewind Starter 3 590740 Retainer 6 590616 Starter Dog 7 590617 Dog Spnng 8 590618A Pulley Rewind Spring Assembly 11 590687B Starter Housing Assembly 40 degree Grommet 12 590535 Starter Rope 98 x 9 64 diam...
Page 44: ... 7278 U S A only www sears _irect To purchase or inquire about a Sears Service Agreement or Sears Maintenance Agreement 1 800 827 6655 U S A 1 800 361 6665 Canada 7 a m 5 p m CST Mon SaL 9 a m 8 p m EST M F 4 p m Sat Parapedirservicio de reparaci6na dernicilio y paraordenar piezas 1 888 SU HOGARsa 1 888 784 6427 Sears Roebuckand Co Au Canada pour serviceen frar_ _ _ __ _ _c og_ r _ Ir U T K _n 1 8...
