Sears 247.8879 operating instructions Friction Wheel Removal, Each Use Engine oil level Check

Page 21

SERVICE AND MAINTENANCE

4.Carefully pivot the snow thrower up and forward so that it rests on the auger housing.

5.Remove the frame cover from the underside of the snow thrower by removing four self-tapping screws which secure it. Refer to Figure 23.

6.Slip the drive belt off the pulley and between friction wheel and friction wheel disc. See Figure 27.

7.Remove and replace belt in the reverse order.

NOTE: Engaging the drive control will ease reassembly of the belt.

Friction Wheel Removal

If the snow thrower fails to drive with the drive control engaged, and performing the Drive Control Cable Adjustment fails to correct the problem, the friction wheel may need to be replaced. Examine the friction wheel for signs of wear or cracking and replace if necessary.

NOTE: Several components must be removed and special tools are required in order to replace this snow thrower’s friction wheel rubber. Contact the nearest Sears Parts & Repair Center as instructed onpage 2 if your friction wheel rubber needs to be replaced.

Figure 27

MAINTENANCE SCHEDULE

WARNING

Before performing any type of maintenance/service, disengage all controls and stop the engine. Wait until all moving parts have come to a complete stop. Disconnect spark plug wire and ground it against the engine to prevent unintended starting. Always wear safety glasses during operation or while performing any adjustments or repairs.

Follow the maintenance schedule given below. This chart describes service guidelines only. Use the Service Log column to keep track of completed maintenance tasks. To locate the nearest Sears Service

Center or to schedule service, simply contact Sears at 1-800-4-MY-HOME®.

Interval

 

Item

 

Service

Service Log

Each Use

1.

Engine oil level

1.

Check

 

 

2.

Loose or missing hardware

2.

Tighten or replace

 

 

3.

Unit and engine.

3.

Clean

 

 

 

 

 

 

 

1st 2 hours

1.

Engine oil

1.

Change

 

 

 

 

 

 

 

25 hours

1.

Engine oil†

1.

Change

 

 

2.

Control linkages and pivots

2.

Lube with light oil

 

 

 

 

 

 

 

50 hours

1.

Engine oil

1.

Change

 

 

 

 

 

 

 

Annually or 100 hours

1.

Spark plug

1.

Clean, replace, re-gap

 

 

 

 

 

 

 

Before Storage

1.

Fuel system

1.

Run engine until it stops from lack of

 

 

 

 

 

fuel or add a gasoline additive to the

 

 

 

 

 

gas in the tank.

 

 

 

 

 

 

† Under heavy load or in high temperatures

 

 

 

21

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Contents 2007 Operator’s ManualTable of Contents Warranty StatementProduct Specifications Model Number Repair Protection Agreement Safety Instructions TrainingPreparation Operation Maintenance & StorageThis page left intentionally blank USE CLEAN-OUT Tool to Unclog Discharge Chute Safety LabelsAssembly AssemblyRemoving From Carton Set-Up Shear PinsChute Clean-Out Tool AdjustmentsTire Pressure Skid ShoesAuger Control Operation Throttle Control Chute AssemblySkid Shoes Recoil Starter HandleClean-Out Tool Before Starting EngineStarting The Engine Stopping The Engine Replacing Shear PinsTo Engage Drive To Engage AugersService and Maintenance Checking Engine OilChanging Engine Oil Lubrication Shave Plate and Skid Shoes Shift CableDrive Control Chute Control Belt ReplacementAuger Belt Roll the auger belt off the engine pulley. See FigureDrive Belt Gas in the tank † Under heavy load or in high temperatures Friction Wheel RemovalEach Use Engine oil level Check Preparing Engine OFF-SEASON StoragePreparing Snow Thrower Short-Term StorageTroubleshooting Craftsman Snow Thrower Model Parts ListDescription 174 31 -0895 Hi-Lo Screw, 1/4-15 x 32 -0606 Hex Screw, 1/4-20 x 7742 40 -04025A Friction Wheel Disc Assembly 11 -0602 TT Screw, 5/16-18 x 717-0421054 -0672 Hex Screw, 5/16-24 x 756-04252 Craftsman Engine Model LH318SA-156554 For Snow Thrower Model Screw, 10-32 x 3/4 29918 Blower Housing Baffle Screw, 1/4-20 x 19/32 Lock Nut 35980ALock Nut 29642 Governor Shaft34667 Governor Link 33877 Intake Pipe36652 Choke Spring Control Bracket Incl , 203, 204 3134220A Rewind Starter Electric Starter 110 Volt optional Housing AssemblyGear & Nut Incl 35449 35450This page applicable in the U.S.A. and Canada only Sears Emission Control Defects Warranty CoveragePage Declaración DE Garantía ÍndiceEspecificaciones DEL Producto Número DE ModeloAcuerdo DE Protección Para Reparaciones Instrucciones DE Seguridad CapacitaciónPreparativos Mantenimiento y almacenamiento OperaciónMontaje Coloque la palanca de cambios en la posición de avance FExtracción de la unidad de la caja MOntajePasador de cuchilla ConfiguraciónHerramienta de Limpieza del Canal AjustesPresión de los neumáticos Zapatas antideslizantesOperación varias veces Prueba de control de la barrenaDibujo Vuelva a apretar la tuerca hexagonal superiorOperación Palanca de cambiosControles del motor Llave de encendidoManija del arrancador de retroceso Control del estranguladorBotón del arrancador eléctrico Salida del arrancador eléctricoHerramienta de limpieza Control del canal de 4 direccionesAntes de encender el motor Encendido del motorProcedimiento para engranar la transmisión Detención del motorProcedimiento para engranar las barrenas Arrancador de retrocesoMantenimiento de Motor Servicio Y MantenimientoTapón para drenado de aceite Control del aceite del motorLubricación Placa de raspado y zapatas antideslizantes Cable de cambiosControl de la transmisión Para retirar las zapatas antideslizantesControl del canal Reemplazo de la correaControl de la barrena La Correa de la barrenaLa correa de la transmisión Extracción de la rueda de fricción Tanque † Bajo carga pesada o en temperaturas altas Cada Uso Nivel del aceite de motor ComprobarPreparación del motor Almacenamiento Fuera DE TemporadaPreparación de la máquina quitanieve Almacenaje a Corto plazoSolución DE Problemas Piezas con garantía Esta página se aplica sólo en EE.UU. y CanadáMotor certificado Notas Notas Notas Get it fixed, at your home or ours