Craftsman 917.378493 Owner'S Manual Download Page 1

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Summary of Contents for 917.378493

Page 1: ...r Power Propelled 21 Rear Discharge Model No 917 378493 EspaSol p 18 CAUTION Read and follow all Safety Rules and Instructions before operating this equipment Sears Roebuck and Co Hoffman Estates IL 60179 U S A Visit our Craftsman website www sears com craftsman ...

Page 2: ...ted 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 IL 60179 IMPORTANT This cutting machine is capable of amputating hands and feet and throw ing objects Failure to observe the following safety instructions c...

Page 3: ...e motor and check immediately for the cause Vibra tion is generally a warning of trouble Always wear safety goggles or safety glasses with side shields when operating II SLOPE OPERATION Slopes are a major factor related to slip and fall accidents which can result in severe injury All slopes require extra cau tion If you feel uneasy on a slope do not mow it DO Mow across the face of slopes never up...

Page 4: ...for years of dependable operation But like all prod ucts it may require repair from time to time That s when having a Repair Protec tion Agreement can save you money and aggravation Purchase a Repair Protection Agreement now and protect yourself from unexpected hassle and expense Here s what s included in the Agreement Expert service by our 12 000 profe sional repair specialists Unlimited service ...

Page 5: ...nd service centers Some of these accessories may not apply to your lawn mower LAWN MOWER PERFORMANCE CLIPPING DEFLECTORS FOR REAR DISCHARGE LAWN MOWERS GRASS CATCHERS _ FOR REAR DISCHARGE LAWN MOWERS STABILIZER GRASS CATCHERS FOR SIDE DISCHARGE LAWN MOWERS LAWN MOWER MAINTENANCE MUFFLERS AIR FILTERS SPARK PLUGS BELTS BLADES BLADE ADAPTERS WHEELS ENGINE OIL 5 ...

Page 6: ...hly for additional loose parts 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 sec tion locks into place in mowing position 2 Remove protective padding raise up per handle section into place on lower handle and tighten both handle knobs 3 Remove handle padding holding operator presence con...

Page 7: ...e oil cap with dipstick Primer Grass catcher Muffler Gasoline filler cover Air filte Housing Wheel 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 Com mission The ...

Page 8: ...o lift the front wheels off the ground while turning lawn mower DRIVE CONTROL ADJUSTMENT Over time the drive control system may become loose resulting in decreased speed There is a thumbscrew on the underside of the drive control housing to increase tension on the drive cable Pro ceed as follows 1 Turn unit off and disconnect spark plug wire from spark plug 2 Rotate thumbscrew counter clockwise to...

Page 9: ...carburetor cleaner products in the fuel tank or permanent damage may occur Engine oil cap BEFORE STARTING ENGINE ADD OIL Your lawnmower is shipped without oil in the engine For type and grade of oil to use see ENGINE in the Maintenance section of this manual CAUTION DO NOT overfill engine with oil or it will smoke heavily from the muffler on startup 1 Be sure lawnmower is level 2 Remove oil dipsti...

Page 10: ...gine 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 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 ...

Page 11: ...receive full value from the warranty operator must maintain unit as instructed in this manual Some adjustments will need to be made periodically to properly maintain your unit At least once a season check to see if you should make any of the adjustments described in the Service and Adjustments section of this manual At least once a year replace the spark plug clean or replace air filter element an...

Page 12: ...hardened washer into blade adapter and crankshaft 4 Use block of wood between blade and lawn mower housing and tighten the blade bolt turning clockwise The recommended tightening torque is 35 40 ft Ibs IMPORTANT Blade bolt is heat treated If bolt needs replacing replace only with approved bolt shown in the Repair Parts section of this manual Blade adapter Crankshaft Key _ keyway Blade Blade shaft ...

Page 13: ...w oil to settle 7 Continue adding small amounts of oil rechecking the dipstick until oil level settles at FULL DO NOT overfill or engine will smoke heavily from the muffler on startup 8 Always be sure to retighten oil dipstick before starting engine 9 Reconnect spark plug wire to spark plug AIR FILTER Your engine will not run properly and may be damaged by using a dirty air filter Replace the air ...

Page 14: ...tion 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 TO REMOVE DRIVE BELT 1 Remove drive cover and belt keeper 2 Remove belt from gearcase pulley by pushing d...

Page 15: ...od of time clean it thoroughly remove all dirt grease leaves etc Store in a clean dry area 1 Clean entire lawn mower See CLEANING in the Maintenance sec tion of this manual 2 Lubricate as shown in the Maintenance section of this manual 3 Be sure that all nuts bolts screws and pins are securely fastened Inspect moving parts for damage breakage and wear Replace if necessary 4 Touch up all rusted or ...

Page 16: ...R 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 protect it from dust and dirt Cover your unit with a suitable protec tive cover that does not retain moisture Do not use plastic Plastic cannot breathe which allows condensation to form and ...

Page 17: ...de worn off 3 Catcher not venting air 1 Grass is too high or wheel height is too low 2 Rear of mower housing or 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 Loose drive control system 1 Replace blade Tighten blade bolt 2 Set all wheels at same height 3 Clean underside of mower housing 1 R...

Page 18: ...en uso en los Estados Unidos Esta Garantfa le otorga derechos legates especfficos y puede que tambi_n tenga otros derechos que varfan de estado a estado Sears Roebuck and Co D 817WA Hoffman Estates IL 60179 USA IMPORTANTE Esta maquina cortadaora es capaz de amputar tas manos y los manos y los pies y de lanzar objetos Si no se observan las instrucciones de seguridad siguientes se pueden producir le...

Page 19: ...ecuencia en las cuestas Estos accidentes ocurren debido a resbaladas o cafdas tas cuales pueden resultar en graves lesiones Operar la recortadora en cuestas requiere mayor concentraci6n Si se siente inseguro en una cuesta no la recorte 19 HACER Puede recortar a trav6s de la superficie de la cuesta nunca hacia arriba y hacia abajo Proceda con extrema precauci6n cuando cambie de direcci6n en las cue...

Page 20: ...fiable por muchos afios Pero come todos los productos puede necesitar alguna reparaci6n de tanto en tanto En este case tener un Acuerdo de Protecci6n para la Reparaci6n puede haceries ahorrar dinero y fastidios Compre ahora un Acuerdo de ProtecciSn para la ReparaciSn y protegese de molestias y gas tos inesperados Un Acuerdo incluye los puntos siguientes Servicio experto de nuestros 12 000 espe cia...

Page 21: ... Algunos de estos accesorios tal vez no se apliquen a su segadora RENDIMIENTO DE LA SEGADORA __ DESVIADOR DE RECORTES PARA Sr GADORAS CON DESCARGA TRASERA RECOREDOR _ PAPA SEGADORAS CON DESCARGA TRASERA ESTABILI ZADORES RECOREDOR PARA SEGADORAS CON DESCARGA LATERAL MANTENIMIENTO DE LA SEGADORA SILENCIADORES FILTROS DE AIRE BUJfAS ADAFrAI_RES ACEI_ CORREAS CUCHILLAS DE CUCHILLA RUEDAS DEL MOTOR 21 ...

Page 22: ...RA PARA DESDOBLAR EL MANGO IMPORTANTE Despliegue el mango con mucho cuidado para no pellizcar o daSar los cables de control 1 Levante los mangos hasta que la secci6n del mango inferior se asegure en su lugar en la posici6n para segar 2 Remueva la cuSa protectora levante la sec ci6n del mango superior hasta su lugar en el mango inferior y apriete ambas manillas det mango 3 Remueva la cuSa del mango...

Page 23: ...nivel Recogedor Cebador Tapa deldepos de dela gasolina laimpulsi6n Filtm C_ja Ajustador de la rueda en cada rueda IMPORTANTE Este cortac6sped viene SIN ACEITE O GASOLINA en motor CUMPLE CON LOS REQUISlTOS DE SEGURIDAD DE LA CPSC Las segadoras a motor que se conducen desde ta parte de atr s rotatorias Sears cumplen con los est ndares de seguridad del American National Standards Institute y de la U ...

Page 24: ...llo de apriete manual en la parte trasera de la sede del mando para apretar la tensi6n del cable Proceder de la siguiente manera 1 Apagar la unidad y desconectar el cable de bujia de la bujia 2 Rote tornillo de apriete manual a la izqui erda para tensar el cable impulsor 3 Opere la segadora para probar la velocidad del mecanismo 4 Si las condiciones no mejoran despues de los pasos descritos la vel...

Page 25: ...anque de gasolina No Io Ilene demasiado Use gasolina regular sin plomo nueva y lim pia con el minimo de 87 octanos No mezcte et aceite con la gasolina Para asegurar que ta gasolina utilizada sea fresca compre estanques los cuales puedan ser utilizados _ kdurante los primeros 30 dfas PRECAUClON Limpie el aceite o el combustible derramado No almacene derrame o use gasolina cerca de una llama expuest...

Page 26: ...arlo Mantenga ta parte superior del motor alred edor del arrancador despejada y sin recortes de c6sped y paja Esto ayudarA el flujo del aire del motor y extenderA su duraci6n CONSEJOS PARA SEGAR Y ACOL CHAR IMPORTANTE Para obtener el mejor rendimiento mantenga la caja de la segadora sin acumulacion de cesped y basura Vea LIMPIEZA en la seccion de Mantenimento de este manual La cuchilla acolchadora...

Page 27: ...bir todo el valor de la garantia el operador tiene que mantener la segadora segSn las instrucciones descritas en este manual Hay algunos ajustes que se tienen que hacer en forma peri6dica para poder mantener su unidad adecuadamente AI menos una vez cada estaci6n comprobar si es necesario efectuar los ajustes descdtos en las secciones de Servicio y Ajustes de este manual Una vez al aSo cambie la bu...

Page 28: ...anillas del reloj 5 Remueva la cuchilla y los artfculos de fer reteria adjuntadores el perno la arandela de seguridad y la arandela endurecida Adaptador de Arandela Cuchilla Pemo Arandela de la endurecida uenal cuchilla Borde de salida Adaptador de la cuchilla PARA CAMBIAR LA CUCHILLA 1 Ponga la cuchilla en el adaptador de 6sta alineando los dos 2 agujeros en ta cuchilla con las salientes elevadas...

Page 29: ... cantidades pequeas de aceite y vuelva a inspeccionar la varilla medidora settles del nivel de aciete en Ileno FULL NO sobrellene el motor con aceite o fumar pesa demante del silenciador cuando Io vatla a arrancar 8 Asegt_rese de apretar la varilla medidora del aceite antes de arrancar el motor 9 Vuelva a conectar el alambre de la bujia a 6sta FILTRO DE AIRE Su motor puede sufrir averfas y funcion...

Page 30: ...ESVIADOR TRASERO Se proporciona un desviador trasero adjunto entre las ruedas traseras de su segadora para reducir a un mfnimo la posibilidad que objetos sean lanzados hacia afuera de la parte trasera de la segadora en la posici6n en donde se encuentra el operador Si se daSa el desviador debe cambiarse PARA REMOVER LA CORREA DE IMPULSION 1 Remueva la cubierta de la impulsi6n y fijador de ta correa...

Page 31: ... de tiempo limpiela cuidadosamente remueva toda la mugre la grasa las hojas etc GuArdeta en un Area limpia y seca 1 Limpie toda ta segadora Vea LIMPIEZA en ta secci6n de Mantenimento de este manual 2 Lubr quela segt_n se muestra en ta secci6n de Mantenimento de este manual 3 AsegSrese de que todas las tuercas y clavijas y todos los pernos y tornillos est_n apretados en foma segura Inspeccione las ...

Page 32: ...que lentamente unas cuantas veces para distribuir el aceite 4 Vuelva a montar la nueva bujfa OTROS No guarde la gasolina de una temporada a la otra Cambie el envase de la gasolina si se emp ieza a oxidar La oxidaci6n y o la mugre en su gasolina producir n problemas Si es posible guarde su unidad en un recinto cerrado y ct brala para protegerla contra el polvo y la mugre Cubra su unidad con un forr...

Page 33: ... altura del mango no adecuada para usted 1 Desgaste de la correa 2 La correa est fuera de la pole 3 Cable de la impulsi6n usado o roto 4 El sistema de control del mecanismo impulsor suelto CORRECCION 1 Eleve la attura de corte 2 Eleve la altura de corte 3 Limpie cambie el filtro de aire 4 Limpie la parte inferior de la caja de la segadora 5 Revise el nivel del aceite 6 Corte a una velocidad de rec...

Page 34: ...GO 19 6 93 8 CRAFTSMAN ROTARY LAWN MOWER MODEL NUMBER 917 378493 9 __ 31 _23 36 _ 14 28 21 _ 38 37 4O 0 32 30 _11 38 91 28 13 47 ...

Page 35: ...179617 Spring RH 51 850733X004 O Ring 52 750634 Rope Guide Anti Fold Bracket 89 701313 Rear Skirt 91 180621 Hinge Screw 1 4 20 x 1 1 4 92 132004 Engine Pulley 93 186362 Hi Pro Key 161058 Engine Briggs Stratton Model Number 187989 125K02 0253 E1 See Breakdown Hex Head Thread Rolling Screw 3 8 16 x 1 1 8 Hex Flange Nut Wheel 71 33623 Shoulder Bolt 5 16 18 x 33 71 33500 Washer Flat 3 8 71 33000 AxleA...

Page 36: ...O O CRAFTSMAN ROTARY LAWN MOWER MODEL NUMBER 917 378493 9 8 12 16 26 23 13 16 14 26 12 28 8 12 23 ...

Page 37: ...843 Bar Control Drive 31 132010 Nut Hex 32 169742 Hubcap 35 180915 Locknut Pinion Assembly LH 36 185566 Wheel Tire Assembly 38 73800400 E Ring 40 182226 Pinion Assembly RH 41 180914 Dust Cover Seal Friction 54 185897 Washer Flat 3 8 55 175739 Selector Knob 57 183993 Disc Drive Spring Torsion Pawl Retainer Drive LH Gear Pinion Retainer Drive RH O Ring Drive Cover Hex Flange Nut Drive Pulley Kit Whe...

Page 38: ...1 Bearing 5 57079 Washer 6 174918 Drive Shaft 21 FWGD 7 160817 Washer Thrust 8 174916 Gear Case Lower FWSS 9 160818 Bearing Needle Thrust 10 850848 Key Hi pro 11 171755 Gear Helical 12 12000003 E Ring 13 183863 Shaft Worm 14 15 16 182225X004 Return Arm 169738X004 Bracket Transmission 86447 Plug 750369 Grease 185567 Kit Gearcase Replacement Includes Instructions NOTE All component dimensions given ...

Page 39: ...BRIGGS STRATTON 4 CYCLE ENGINE MODEL NUMBER 125K02 0253 E1 I 1019 LABEL KI_1 684 51 383 635 5 41 158 2o_ 718_ 306 307 52511 524 10_ 39 ...

Page 40: ...BRIGGS STRATTON 4 CYCLE ENGINE MODEL NUMBER 125K02 0253 E1 425 968 _88_ 621 668 445 443_ 977 CARBURETOR GASKET SET 365 276 _ 127 163_ 970 _ 127_ 633 0 I 137 276_ 617 11171 276 F 276 4O ...

Page 41: ...BRIGGS STRATTON 4 CYCLE ENGINE MODEL NUMBER 125K02 0253 E1 969 304 _J I 1036 EMISSIONS LABEL I 363_ 332 _ 324 23 66 592_ 58_ 459 689 O 697_ 41 ...

Page 42: ...24 222698 Key Flywheel 25 697339 Piston Assembly Standard 697340 Piston Assembly 010 Oversize 697341 Piston Assembly 020 Oversize 697342 Piston Assembly 030 Oversize KEY PART NO NO DESCRIPTION 26 499425 Ring Set Piston Standard 499426 Ring Set Piston 010 Oversize 499427 Ring Set Piston 020 Oversize 499428 Ring Set Piston 030 Oversize 27 691866 Lock Piston Pin 28 499423 Pin Piston 29 499424 Rod Con...

Page 43: ...iction 281505 PawI Ratchet 231082 Nut Governor Control Lever 495264 Dipstick 692296 SeaI DipstickTube 495265 Tube Dipstick 691923 Grommet 92613 Bolt Governor Control Lever KEY PART NO NO DESCRIPTION 564 698589 Screw Control Cover 584 692342 Cover Breather Passage 585 691879 Gasket Breather Passage 592 690800 Nut Rewind Starter 597 691696 Screw Pawl Friction Plate 601 95162 Clamp Hose 604 698588 Co...

Page 44: ...nt and electronics call or go on line for the nearest Sears Parts and Repair Center 1 800 488 1222 Anytime day or night U S A only www sears com To purchase a protection agreement U S A or maintenance agreement Canada on a product serviced by Sears 1 800 827 6655 u S_ 1 800 361 6665 Canada Para pedir servicio de reparaciSn a domicilio y para ordenar piezas 1 888 SU HOGAR sM 1 888 784 6427 Au Canad...

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