Craftsman 917.378900 Owner'S Manual Download Page 2

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Summary of Contents for 917.378900

Page 1: ...Horsepower Power propelled 21 Multi cut Model No 917 3789OO CAUTION Read and follow all Safety Rules and Instructions before operating this equipment Sears Roebuck and Co Hoffman Estates IL 60179 U S A VLsitourCraftsman website www sears corn craftsman ...

Page 2: ... the United 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 i...

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 I1oSLOPE OPERATION Slopes are a major factor related to slip and fall accidents which can result in severe injury All slopes r...

Page 4: ...ving 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 usa 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 wit...

Page 5: ...als 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 in mowing pos...

Page 6: ... Mulcher dool Primer 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 when the engine is running Operator presence control bar must be held down ...

Page 7: ...ut self propelling To keep drive control engaged when tuming corners push down on handle and lift front wheels off ground while turning lawn mower Operato bar Drive control FAST SLOW ENGINE ZONE CONTROL _I CAUTION Federal regulations require an engine control to be installed on this lawn mower in order to minimize the risk of blade contact injury Do not under any circumstances attempt to defeat th...

Page 8: ...under door as shown Mower is now ready for discharging operation To convert to mulching or bagging operation discharge deflector must be removed and muicher door must be closed SIMPLE STEPS TO REMEMBER WHEN CONVERTING YOUR LAWN MOWER FOR MULCHING 1 Rear door closed 2 Mulcher door closed FOR REAR BAGGING 1 Grass catcher installed 2 Mulcher door closed FOR SIDE DISCHARGING 1 Rear door closed 2 Side ...

Page 9: ...6 Always be sure to retighten oil dipstick before starting engine Check oil level 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 wit...

Page 10: ...d 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 mulching blade will recut the grass clippings many times and reduce them ...

Page 11: ...egligence To receive full value from the warranty operator must maintain mower as instructed in this manual Some adjust ments 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...

Page 12: ...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 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 blad...

Page 13: ...lex Premium 1 Grease Part No 750369 Do not substitute S _ VISCOSITY GRADES 30 20 to o lO 20 30 rEMPERATURIE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE NOTE Although multi viscosity oils 5W30 10W30 etc improve starting in cold weather these multi viscosity oils will result in increased oil consumption when used above 32 F Check your engine oil level more frequently to avoid possible engine damage fro...

Page 14: ...rk 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 hose to clean lawn mower unless t...

Page 15: ...r removed or propped open Catcher frame handle Drive cover Push Belt TO ADJUST HANDLE The upper handle may be adjusted to four 4 different height positions 1 Loosen both handle knobs only enough to allow the upper handle to pivot to the desired adjustment position 2 Tighten both handle knobs securely Handle knob Frame opening ENGINE ENGINE SPEED Your engine speed has been factory set Do not attemp...

Page 16: ...tion the lower handle will automatically lock into the mowing position SQUEEZE TO FOLD control bar Upper Lower FOLD BACKWARD Mowing position 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 alcohol blended fuels called gasohol or using ethanol or methanol can attract...

Page 17: ... 1 Dirty air filter 2 Out of fuel 3 Stale fuel 4 Waterin fuel 5 Spark plug wire is disconnected 6 Bad spark plug 7 Loose blade or broken blade adapter 8 Control bar in released position 9 Control bar defective 10 Fuel valve lever if so equipped in OFF position 11 Weak battery if equipped 12 Disconnected battery connector if equipped 1 Rear of lawn mower housing or cutting blade dragging in heavy g...

Page 18: ...r handle before pulling starter rope Contact a Sears or other qualified service center Replace blade adapter Move lawn mower to cut grass or to hard surface Grass catcher 1 Cutting height too low 1 Raise cutting height notfilling 2 Lift on blade worn off 2 Replace blade Ifsoequipped 3 Catcher not venting air 3 Clean grass catcher Hard to push 1 Raise cutting height 1 Grass is too high or wheel hei...

Page 19: ... en uso en los Estados Unidos Esta Garantia le otorga derechos legales especfficos y puede que tambien tenga otros derechos que varian de estado a estado SEARS ROEBUCK AND CO D 817WA HOFFMAN 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 instruccionesde seguridad siguientes se pueden producir le...

Page 20: ... indicar que existe alguna averfa Siempre use gafas de seguridad o anteojos con protecci6n lateral cuando opere la segadora II OPERACION SOBRE LAS CUESTAS Los accidentes ocurren con rods frecuencia en las cuestas Estos accidentes ocurren debido a resbaladas o cafdas las cuales pueden resultar en graves lesiones Operer la recortadora en cuestas requiere mayor concentraci6n Si se siente inseguro en ...

Page 21: ...artes en movimiento o permitir que objetos sean disparados Contrelar frecuentemente y cuando sea necesario sustituir con partes aconsejadas por el fabricante Las cuchUlasde la segadora estdn afiladas y pueden cortar Cubrir las hojas o Ilevar guantes y utilizar precauciones especiales cuando se efect_a mantenimiento sobre las mismas No cambie el ajuste del regulador del motor ni exceda su velocidad...

Page 22: ...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 revisela cuidadosamente para verificar si todavia 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 mangos hasta que ...

Page 23: ...ueda 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 rotatorias Sears cumplen con los estdndares de seguridad del American National Standards Institute y de la U S Con sumer Product Safety Commission La cuchilla gira cuando el motor estd funcionando Barra de control que ...

Page 24: ...l de la impulsi6n hacia adelante hasta que suene clic luego se suelta la palanca El movimiento hacia adelante parard cuando la barra de control que exige la presencia del operador se suelta Para parar el movimiento hacia adelante sin parar el motor suelte la barra de control que exige la presencia del operador un poco hasta que se desenganche el control de la impulsi6n Sujete la barra de control q...

Page 25: ...stra La segadora esta lista para la operaci6n de la descarga Para convertir a la operaci6n de ensacado o de descarga el desviador de la descarga debe ser removido y la protecci6n contra la descarga debe estar cerrada PASOS SIMPLES DE RECORDAR CUANDO CONVIERTA SU SEGADORA PARA ACOLCHAMIENTO 1 Puerta trasera cerrada 2 La proteccibn contra la descarga lateral cerrada PARA ENSACAMIENTO TRASERO 1 La ta...

Page 26: ... antes de cada uso Agregue aceite si es necesario Llene hasta la Ifnea de Ileno en la varilla medidora de nivel Cambie el aceite despues de 25 horas de operaci6n o una vez por temporada Puede necesitar cambiar el aceite mas a menuclo cuando las condiciones son polvorosas o sucias AGREGUE GASOLINA Llene el estenque de combustible hasta la parte inferior del cuello de relleno del estanque de gasolin...

Page 27: ...ogedor con la manguera de agua regularmente y ddje o secarse antes de usado Mantenga la parte superior del motor alrededor del arrancador despejada y sin recortes de c_sped y paja Esto ayudard el flujo del aire del motor y extender su duraci6n CONSEJOS PARA SEGAR Y ACOLCHAR IMPORTANTE Para obtener el mejor rendimiento mantenga la caja de la segadora sin acumulacion de cesped y basura Vea LIMPIEZA ...

Page 28: ...e que mantener la segadora segt_n las instrucoiones 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 ser revisados per Io menos un vez pot cada temporada Una vez al a_o cambie la bujia limpie o cambie el elemento del filtro de aire y rev...

Page 29: ... revise el cubo interiorde 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 estd dahado PARA CAMBIAR LA CUCHILLA 1 Ponga el adaptador de la cuchilla en el cigueSal del motor Aseg_rese que la ranura del adaptador y que el chavetero del cigueSal estdn alineados 2 Ponga la cuchilla en el adaptador de 6sta...

Page 30: ...e le ha prestado servicio a la caja de engranajes Si se necesita lubricante use solamente Grasa Texaco Starplex Premium 1 Parte No 750369 No use substitutos MOTOR LUBRICACI6N Use solamente aceite de detergente de alta calidad clasificado con la clasificaci6n SF SJ de servicio API Seleccione la calidad de viscosided SAE seg6n su temperatura de operaci6n espereda CAUDADES DE VISCOSIDAD DE SAE AVISO ...

Page 31: ...n contacto con _sta Limpie la parte inferiorde su segadora rasp_ ndolapara remover la acumulaci6n de c6sped y basura Limpie el motor a menudo para evitar qua se acumule la basura Un motor tapado funciona rods caliente y se acorkasu duraci6n Mantenga las supedicies pulidas y las ruedas sin gasolina aceite etc No recomendamos el uso de una manguera de jardin para limpiar la segadora a menos que el s...

Page 32: ... la segadora cuando se ha removido la puerta trasera o cuando esterun poco abierta Mango del bastidor del recogedol Cubierta de la impulsion Correa PARA AJUSTAR EL MANGO El mango superior quede ser ajustado a cuatro 4 distintas posiciones de altura 1 Afloje ambas periilas del mango solamente bastante pars permitir que el mango superior gire a la posici6n deseada 2 Apriete ambas perillas del mango ...

Page 33: ...m _ ol que _ I_ exigela presencla del_ _ DOBLAR _ i operador HACIA _7 _ _ 11 _DELAN_ 7 Mangosup edor _ PAPA Mango _ _r _ _ ly infedor _ _ _ _ i _ _ _ _ _ _ _ Posici6n parasogar MOTOR SISTEMA DE COMBUSTIBLE IMPORTANTE Es importante evitar que se formen depositos de coma en partes fundamentales del sistema de combustible tales como el carburador el filtm del combus tible la manguera dal combustibleo...

Page 34: ...ficio en donde los gases pueden alcanzar una llama expuesta o una chispa Permita que se enfrfe el motor antes de alma cenarla en algen recinto cerrado SOLUClON DE PROBLEMAS Vea la secci6n apropiada en el manual amenos que estd dirigido a un centro de servico Sears PROBLEMA CAUSA CORRECCI _N No arranca 1 Filtro de aire sucio 2 Sin combustible 3 Combustible rancio 6 1 2 3 Agua en el combustible 4 Al...

Page 35: ...l mango no adecuada para usted 1 Desgaste de la correa 2 La correa estd fuera de la polea 3 Cable de la impulsi6n usado o roto 4 Suciedad en piSones del mecanismo impulsor CORRECCI6N 1 Ajuste a la posici6n de Code rods alto 2 Ajuste a la posici6n de Code mds alto 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 Code a una velocid...

Page 36: ...SERVICE NOTES 36 ...

Page 37: ... Shifter 4 57072 Seal 6 48373 Gear Case Halves Kit includes Key Numbers 4 and 7 7 77881 Bearing 8 137051 WormShaft 9 175257 Drive Shaft 10 57079 HardenedWasher 11 131484 ClutchYoke 12 700343 Bushing 13 86447 Plug 14 137050 Helical Gear 15 750436X ClutchJaw 16 750369 Grease 17 12000003 E Ring 18 850848 Hi PmKey 19 81585X004 Spring Bracket NOTE All componentdimensions givenin U S inches 1 inch 25 4 ...

Page 38: ...CRAFTSMAN ROTARYLAWN MOWER MODEL NUMBER 917 378900 29 33 19 79 35 36j 21 13 30 37 42 41 21 45 25 27 31 34 28 35 ...

Page 39: ... 16 x 1 1 8 Hex Flange Nut Wheel Shoulder Bolt 5 16 18 x 33 Threttle Choke Control Axle Arm Assembly RR Selector Knob Selector Spring Screw 165762X004 Axle Arm Assembly LR KEY PART NO NO DESCRIPTION 35 180626 Hubcap 36 165912 Bolt 37 57143 Washer Wave 38 176185 Washer 39 176235 Pushnut 40 164265 Grip Handle Foam 41 83816 Clamp 42 111190X Screw 43 175083 BottomBeltCover 44 182385 Lawn Mower Housing...

Page 40: ...CRAFTSMAN ROTARY LAWN MOWER MODEL NUMBER 917 378900 54 18 14 18 14 16 13 41 8 13 12 66 ...

Page 41: ...rew 1 4 20 x 2 12 32 137052 V Belt 35 151521 SpringRetainer 36 175258 Hubcap 37 137090 Locknut 38 63601 Wheel Tire Assembly 40 75192 E Ring 41 151520 Pinion 54 179047 DustCover 55 175739 FeJtWasher 57 175058 Washer 1 2 x 1 1 2 x 134 Selector Knob Pan Head Tapping Screw 10 24 x 2 3 4 DriveCover Hex Flange Nut Ddve Pulley Wheel AdjusterAssembly Left Gear Case Assembly Spdng Locknut1 4o20 Spdng Wheel...

Page 42: ...BRIGGS STRATTON 4 CYCLE ENGINE MODEL NUMBER 128602 0212 E1 1029_ 238_ 529 584_4_ 2271 _ _ 615 0 1404 so5_ IJ 616 29 32 _ _ 741 146 718 0 11058 OWNER S MANUAL I 24 _ ls_ 2o_ 42 ...

Page 43: ...4 CYCLE ENGINE MODEL NUMBER 128602 0212 E1 51A 365 842 0 I1 I 524 0 J 443 445 977 CARBURETOR GASKET SET I I 137_ 276 _ M _f_ 633 _ 51 _ 163 _ 51A 121 CARBURETOR OVERHAUL KIT 633 104_ _ 127_ 134_ 73_ A_ _2 Q 51 137 O 43 ...

Page 44: ...SeaI Oil MagnetoSide 16 691457 4 499619 Sump Engine 20 399781 5 695276 Head Cylinder 22 691092 7 695166 Gasket Cylinder Head 23 697610 8 495786 Breather Assembly 24 222698 9 272481 Gasket Breather 25 690021 10 691125 Screw Breather Assembly 694167 11 691260 Tube Breather 694168 12 692232 Gasket Crankcase 44 694169 DESCRIPTION Screw Cylinder Head Plug Oil Drain Crankshaft Seal Oil PTO Side Screw En...

Page 45: ...w AkCleaner Cover 690255 Screw Air Cleaner Primer Base 697029 Filter AirCleaner Cartridge 695161 Cup F_ywheel I_ Y PART NO NO DESCRIPTION 456 692299 Plate Pawl Friction 459 281505 PawFRatchet 478 697623 Panel 505 231082 Nut Governor ControlLever 523 499621 Dipstick 524 692296 SeaI DipstickTube 525 495265 Tube Dipstick 529 692937 Grommet 562 94852 Bolt Governor ControlLever 584 692342 Cover Breathe...

Page 46: ...SERVICE NOTES 46 ...

Page 47: ...SERVICE NOTES 47 ...

Page 48: ..._ only www sea_ _rect 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 m 5 p rn CST Mort Sat 9 a re 8 p m EST M F 4 p m Sat Para pedir sewicio de re_ a Au Canada pour selvice en fran_ais domiciio y para onJenar piezas 1 800 LE FOYERMC 1 888 SU HOGARSM 1 800 5 33 6937 1 888 784 642 7 www sears ca Sea_ P oebu_andC_ Reg...

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