Craftsman 917.378644 Owner's Manual
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Craftsman 917.378644 Owner's Manual

Rotary lawn mower 7.0 horsepower power-propelled 21" rear discharge
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Owner's Manual
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ROTARY LAWN MOWER
7.0 Horsepower
Power-Propelled
21" Rear Discharge
Model No.
917.378644
• 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

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  • Page 1 ROTARY LAWN MOWER 7.0 Horsepower Power-Propelled 21" Rear Discharge Model No. 917.378644 • 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 ......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 or workmanship.
  • Page 3 I. GENERAL OPERATION II. SLOPE OPERATION • Read, understand, and follow all Slopes are a major factor related to slip instructions on the machine and in the and fall accidents which can result in manual(s) before starting. Be thoroughly severe injury. All slopes require extra cau- familiar with the controls and the proper tion.
  • Page 4 Record both serial number and date of purchase in space provided above. Repair Protection Agreements Congratulations on making a smart pur- Fast help by phone - phone support chase. Your new Craftsman® product is from a Sears technician on products designed and manufactured for years of requiring in-home repair, plus conve- dependable operation.
  • Page 5 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. Some of these accessories may not apply to your lawn mower. LAWN MOWER PERFORMANCE CLIPPING...
  • Page 6 Read these instructions and this manual in Your lawn mower handle can be adjusted its entirety before you attempt to assemble for your mowing comfort. Refer to "AD- or operate your new lawn mower. JUST HANDLE" in the Service and Adjust- ments section of this manual.
  • Page 7 KNOW YOUR LAWN MOWER READ THIS OWNER'S MANUAL AND ALL SAFETY RULES BEFORE OPERATING YOUR LAWN MOWER. Compare the illustrations with your lawn mower to familiarize yourself with the location of various controls and adjustments. Save this manual for future reference. These symbols may appear on your lawn mower or in literature supplied with the product.
  • Page 8 NOTE: If after releasing the drive control The operationof any lawn the mower will not roll backwards, push mowercan result in foreign the mower forward slightly to disengage objectsthrown intothe drive wheels. eyes,which can result in • To keep drive control engaged when severeeye damage.
  • Page 9 1. Be sure lawnmower is level. TO CONVERT MOWER 2. Remove oil dipstick from oil fill spout. Your lawn mower was shipped ready to be 3. You receive a container of oil with the used as a mulcher. To convert to bagging: •...
  • Page 10 TO STOP ENGINE • Keep top of engine around starter clear and clean of grass clippings and chaff. • To stop engine, release operator pres- This will help engine air flow and extend ence control bar. engine life. TO START ENGINE MULCHING MOWING...
  • Page 11 MAINTENANCE SCHEDULE /_:;,_°_o_y REGO RSERV,CE AS YOU COMPLETE Lubrication It#' CheckTires Check DriveWheels (Power-Propelled Mowers) Check for Loose Fasteners Clean/Inspect Grass Catcher (If Equipped) Clean Lawn Mower RE Clean Under Drive Cover (Power-Propelled Mowers) Check drive belt/pulleys (Power-Propelled Mowers) Check/Sharpen/Replace Blade Clean Battery/Recharge IElectdc Start MowersI Check Engine Oil Level...
  • Page 12 4. Use block of wood between blade and LAWN MOWER Always observe safety rules when per- lawn mower housing and tighten the blade bolt, turning clockwise. forming any maintenance. • The recommended tightening torque is 35-40 ft. Ibs. TIRES IMPORTANT: Blade bolt is heat treated.
  • Page 13 • The gearcase is filledwith lubricantto the 4. Wipe off any spilled oil from lawn proper level at the factory. The only time mower or side of engine. the lubricant needs attentionis if service 5. Slowly pour oil down the oil fill spout, has been performedon the gear case.
  • Page 14 CLEANING • Keep finished surfaces and wheels free of all gasoline, oil, etc. IMPORTANT: For best performance, keep • We do not recommend using a garden mower housing free of built-up grass and hose to clean lawn mower unless the trash.
  • Page 15 or too slow, take your lawn mower to a Sears or other qualified service center for repair and adjustment. CARBURETOR Your carburetor is not adjustable. If your engine does not operate properly due to suspected carburetor problems, take your lawn mower to a Sears or other qualified service center for repair and/or adjust- Lower ment.

  • Page 16: Troubleshooting

    ENGINE ENGINE FUEL SYSTEM Drain oil (with engine warm) and replace with clean engine oil. (See "ENGINE" in IMPORTANT: It is important to prevent the Maintenance section of this manual). gum deposits from forming in essential CYLINDER fuel system parts such as carburetor, fuel 1.
  • Page 17 TROUBLESHOOTING - See appropriate section in manual unless directed to a Sears Service Center. PROBLEM CAUSE CORRECTION Loss of power 1. Rear of mower housing or 1. Raise cutting height. blade dragging in grass. 2. Cutting too much grass. 2. Raise cutting height. 3.
  • Page 18 Contrapa GARANTiA LIMITADA DE DOS AI_IOS PARA LA SEGADORA A MOTOR CRAFTSMAN Per dos (2) aSos, a partir de la fecha de compra, cuando esta Segadora Craftsman se mantenga, lubrique y afine segSn las instrucciones para la operaci6n y el mantenimiento en el manual del dueSo, Sears repararA gratis todo defecto en el material y la mane de obra.
  • Page 19 HACER: I. OPERAClON • Antes de empezar, debe familiarizarse comple- • Puede recortar a trav6s de la superficie de tamente con los controles y el uso correcto de la cuesta, nunca hacia ardba y hacia abajo. la maquina. Para esto, debe leer y comprender Proceda con extrema precauci6n cuando todas las instrucciones que aparecen en la ma- cambie de direcci6n en las cuestas.
  • Page 20 • Ayuda r_pida por tel_fono - soporte tele- nuevo producto Craftsman® estA diseSado f6nico per parte de un t_cnico Sears sobre y fabricado para funcionar de mode fiable per productos que requieren un arreglo en casa, muchos aSos.
  • Page 21 Estos accesorios estaban disponibles cuando se produjo la segadora. No son facilitades junto al ¢ortacesped. Est&n disponibles en la mayoria de las tiendas de Sears yen los centros de servicio. Algunos de estos accesorios tal vez no se apliquen a su segadora. RENDIMIENTO DE LA SEGADORA DESVlADOR...
  • Page 22 Lea estas instrucciones y el manual comple- Barra de control c la presencia del operador tamente antes de tratar de montar u operar su segadora nueva. Mango superior IMPORTANTE: Este cortacesped viene SIN ACEITE O GASOLINA en el motor. Mango Inferior Su segadora nueva ha side montada en la f&brica con la excepci6n de aquellas partes que LEVANTAR...
  • Page 23 FAMILIARICESE CON SU S EGADORA LEA ESTE MANUAL DEL DUENO Y LAS REGLAS DE SEGURIDAD ANTES DE OPERAR SU SEGADORA. Compare las ilustraciones con su segadora para familiarizarse con la ubicaci6n de los diversos controles y ajustes. Guarde este manual para referencia en el futuro. Estos simbolos pueden apareser sobre su segadora o en la literatura proporcionada con el producto.
  • Page 24 AJUSTE DEL MANDO La operaci6n de cualquier Ocasionalmente, et sistema de mando puede segadora puede hacer que salten "aflojarse", provocando una disminuci6n de la objetos extraSos dentro de sus velocidad. Hay un tornillo de apriete manual en la ojos, Io que puede producir daSos parte trasera de la sede del mando para apretar la graves en _stos.
  • Page 25 IMPORTANTE: _PRECAUCI(_N: Nohagafuncionar s usega- • Revise el nivel del aceite antes de cada uso. dorasinpuertatrasera cerrada o el desviador Agregue aceite si es necesario. Llene hasta la de recortes o sinel recogedor de c6sped, Ifnea de Ileno en la varilla medidora de nivel. aprobados, en su lugar.
  • Page 26 PARA PARAR EL MOTOR • Mantenga ta parte superior del motor, alred- edor del arrancador, despejada y sin recortes • Para parar el motor, suelte la barra de con- de c6sped y paja. Esto ayudarA el flujo del troles que exigen la presencia del operador. aire del motor y extendera su duraci6n.
  • Page 27 PROQRAMA DE MANTENIMIENTO _-_'_ Lubricaci6n Controlar losneum_.ticos Controlar lasruedas motrices Revisar s ihaysujetadores sueltos (segadoras con poder propulsor) Limpiar/inspecoionar el recogedor de c_sped (siviene equipado) Limpiar l asegadora delacubierta d e latrans- misidn (segadoras conpoder p ropulsor) Limpiar debajo (segadoras sadas con poder propulsor) Revisar l ascorreas y laspoleas impul-...
  • Page 28 SEGADORA de la cuchilla gir&ndolo en el sentido en que giran las manillas del reloj. Siempre observe las reglas de seguridad cu- • La torsi6n para apretar recomendada es de ando haga el mantenimiento. 35 - 40 pies libras. LLANTAS IMPORTANTE: El perno de la cuchilla es •...
  • Page 29 Parar de afiadir aceite cuando se alcanza la MOTOR serial de Ileno (FULL) en la varilla. Esperar un LUBRICACI(_N minuto para dejar que el aceite se arregle. Use solamente aceite de detergente de alta Contint]e agregando cantidades pequeas calidad clasificado con la clasificaci6n SF-SJ de de aceite y vuelva a inspeccionar la varilla servicio API.
  • Page 30 LIMPIEZA • No recomendamos el uso de una manguera de jardfn para limpiar la segadora a menos IMPORTANTE: Para obtener el mejor ren- que el sistema el_ctrico, el silenciador, el dimiento, mantenga la caja de la segadora filtro de aire y el carburador est6n tapados sin acumulacion de cesped y basura.
  • Page 31 personales. Si cree que el motor est& funcio- nando demasiado r&pido o demasiado lento, Ileve su segadora a mas con su centro de servicio Sears o con un otro centro de servicio cualificado. CARBURADOR Su carburador no es ajustable. Si su motor no est&...
  • Page 32 ACEITE DEL MOTOR MOTOR Drene el aceite (con el motor caliente) y SISTEMA DE COMBUSTIBLE c&mbielo con aceite de motor limpio. (Vea "MO- IMPORTANTE: Es importante evitar que se TOR" en la secci6n de Mantenimiento de este formen depositos de coma en partes funda- manual.) mentales del sistema de combustible tales como el carburador, et filtro del combustible,...
  • Page 33 SOLUCION DE PROBLEMAS - Vea la secci6n apropiada en el manual amenos que estd dirigido a un centro de servico Sears. CORRECCI()N PROBLEMA CAUSA Falta de Eleve la attura de corte. 1. Cuchilla desgastada, doblada fuerza o suelta. Eleve la altura de corte. Altura de las ruedas dispareja.
  • Page 34 CRAFTSMAN ROTARY LAWN MOWER - - MODEL NUMBER 917.378644 _2 30...
  • Page 35 CRAFTSMAN ROTARY LAWN MOWER - - MODEL NUMBER 917.378644 KEY PART PART DESCRIPTION NO. NO. DESCRIPTION 186111 Screw Upper Handle, with Grip 183365 151721X479 Lower Handle 186576X004 Axle Arm Assembly, LR 182815 Control Bar 180626 Hubcap 133107 Bolt Engine Zone Control Cable...
  • Page 36 •...
  • Page 37 CRAFTSMAN ROTARY LAWN MOWER - - MODEL NUMBER 917.378644 PART PART DESCRIPTION DESCRIPTION 185685 Gear Case Assembly (See Breakdown) Drive Control Assembly 187212 175262 Lacknut 1/4-20 Pan Head Tapping Screw #10-24 x 2-3/4 73800400 Screw 182226 185681 Spring 169778 V-Belt...
  • Page 38 CRAFTSMAN ROTARY LAWN MOWER - - MODEL NUMBER 917.378644 GEAR CASE ASSEMBLY - - PART NUMBER 187212 PART DESCRIPTION 187525 Case, Lower 187526 Case, Upper 183499 Gear, 27 Teeth 187527 Shaft, Input 187528 Spacer 183505 Wire, Formed 183506 Bearing, Ball...
  • Page 39 BRIGGS & STRATTON 4-CYCLE ENGINE MODEL NUMBER 128602-0259-E1 1022 584 _4 914A_ _ 914_' 1022 505@ 1058 OWNER'S MANUAL ] 307, 25 I 27c., [_J" 24 [_ 741_ 1095 VALVE OVERHAUL KIT 868_ 158 2o_...
  • Page 40 BRIGGS & STRATTON 4-CYCLE ENGINE MODEL NUMBER 128602-0259-E1 445_ 443_ 127_ 1171 188_ 190 _ 670 _ 613 % 121 CARBURETOR OVERHAUL KIT 524 0 6330 104_ 127_ 134_ 163_ 51_276_ 137_...
  • Page 41 BRIGGS & STRATTON 4-CYCLE ENGINE MODEL NUMBER 128602-0259-E1 592 _ 689 _J 592 ® 305_ 1211 1036 LABEL-EMISSION 1019 KIT-LABEL 358 ENGINE GASKET SET 883 _ 1005 102: 163_...
  • Page 42 BRIGGS & STRATTON 4-CYCLE ENGINE MODEL NUMBER 128602-0259-E1 PART PART DESCRIPTION DESCRIPTION 692668° O_:+Gasket-tntake 692670 Cylinder Assembly 399269 Kit-Bushing/Seal 692799. O_:+Spacer-Carburetor 299819 * Seal-Oil (Magneto Side) 691421 Housing-Rewind Starter 493279 Sump-Engine 692259 Rope-Starter (Cut to Length) 695276 Head-Cylinder 281434 Grip-Starter Rope 695166 *+Gasket-Cylinder Head...
  • Page 43 BRIGGS & STRATTON 4-CYCLE ENGINE MODEL NUMBER 128602-0259-E1 PART PART DESCRIPTION DESCRIPTION 692044 .+Seal-Valve 692051 Spark Plug 691893 • Gasket-Exhaust 692390 Wire-Stop 694090 Engine Gasket Set 696268 Gasket Kit-Cylinder Head/Plate 19069 Flywheel Puller 691108 Screw (Rocker Cover) 691136 Screw (Carburetor) 914A 691127 Screw (Rocker Cover) 19374...
  • Page 44 Your Home For repair - in your home - of all major brand appliances, lawn and garden equipment, or heating and cooling systems, no matter who made it, no matter who sold it! For the replacement parts, accessories owner's manuals that you need to do-it-yourself. For Sears professional installation of home appliances...

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