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Craftsman 247.88955 Gear Shaft, Lubrication, Checking Spark Plug

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SERVICE AND MAINTENANCE

Checking Spark Plug

WARNING

DO NOT check for spark with spark plug removed. DO NOT crank engine with spark plug removed.

WARNING

If the engine has been running, the muffler will be very hot. Be careful not to touch the muffler.

NOTE: Check the spark plug once a season or every 25 hours of operation. Change the spark plug once a season or every 100 hours. To ensure proper engine operation, the spark plug must be properly gapped and free of deposits.

1.Remove the spark plug boot and use a spark plug wrench to remove the plug. See Figure 14.

2.Visually inspect the spark plug. Discard the spark plug if there is apparent wear, or if the insulator is cracked or chipped. Clean the spark plug with a wire brush if it is to be reused.

3.Measure the plug gap with a feeler gauge. Correct as necessary by bending side electrode. See Figure 15. The gap should be set to .02-.03 inches (0.60-0.80 mm).

4.Check that the spark plug washer is in good condition and thread the spark plug in by hand to prevent cross-threading.

5.After the spark plug is seated, tighten with a spark plug wrench to compress the washer.

NOTE: When installing a new spark plug, tighten 1⁄2-turn after the spark plug seats to compress the washer. When reinstalling a used spark plug, tighten 1⁄8- to 1⁄4-turn after the spark plug seats to compress the washer.

CAUTION

The spark plug must be tightened securely. A loose spark plug can become very hot and can damage the engine.

LubricationGear Shaft

The gear (hex) shaft should be lubricated at least once a season or after every 25 hours of operation.

1.To prevent spillage, remove all fuel from tank by running engine until it stops.

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

3.Remove the lower frame cover from the underside of the snow thrower by removing the four self-tapping screws which secure it.

4.Apply a light coating of engine oil (or 3-in-1 oil) to the hex shaft. See Figure 16.

NOTE: When lubricating the hex shaft, be careful not to get any oil on the aluminum drive plate or rubber friction wheel. Doing so will hinder the snow thrower’s drive system. Wipe off any excess or spilled oil.

Spark Plug

Spark Plug Boot

Figure 14

Electrode

.02-.03 in.

(0.60-0.80 mm)

Figure 15

Figure 16

17

Contents

Page Craftsman Limited Warranty Two Years on Snow Thrower Sears, Roebuck and Co., Hoffman Estates, IL Model Number Serial Number WARNING DANGER California Proposition SAVE THESE INSTRUCTIONS Training Safe Handling of Gasoline Operation Maintenance & Storage Do not modify engine Notice Regarding Emissions Spark Arrestor Symbol 5.READ OPERATOR'S MANUAL aVoid injUry from rotating aUger - keeP Hands, feet and CLotHing aWay Removing From Carton Loose Parts assembly Page Set-Up Chute Clean-OutTool Tire Pressure Adjustments Skid Shoes Chute Assembly Auger Control Shift Lever Forward Reverse Ignition Key Choke Control throttle control Primer Recoil Starter Handle Electric Starter Button Electric Starter Outlet Clean-OutTool Before Starting Engine Oil Gasoline Starting The Engine Recoil Starter Stopping The Engine To Engage Drive To Engage Augers Replacing Shear pins ENGINE MAINTENANCE Checking Engine Oil Changing Engine Oil Checking Spark Plug Lubrication Gear Shaft Wheels Chute Directional Control Auger Shaft Shave Plate and Skid Shoes Shift Cable Chute Bracket Belt Replacement Auger Belt Page Drive Belt Friction Wheel Removal MAINTENANCE SCHEDULE Center or to schedule service, simply contact Sears at 1-800-4-MY-HOME® Interval Item Service Preparing Engine Preparing Snow Thrower Problem Cause Remedy Page Page Page Page Page Page Page Page Page Emission Control System Warranty Statement (Owner’s Defect Warranty Rights and Obligations) MANUFACTURER’S WARRANTY COVERAGE: OWNER’S WARRANTY RESPONSIBILITIES: Defects Warranty Requirements for 1995 and Later Small Off-RoadEngines: Page Look For Relevant Emissions Durability Period and Air Index Information On Your Engine Emissions Label Moderate: Intermediate: Extended: •Unlimited service and no charge for parts and labor on all covered repairs Product replacement Discount of 10% Fast help by phone *Coverage in Canada varies on some items. For full details call Sears Canada at Garantía Limitada Craftsman Dos Años en Lanzador de Nieve Número de modelo Número de serie Fecha de compra Proposición 65 de California Manejo seguro de la gasolina Funcionamiento Mantenimiento y Almacenamiento No modifique el motor Aviso referido a emisiones Guardachispas Símbolo Extracción de la unidad de la caja Partes sueltas MOntaje Page Configuración Herramienta de Limpieza del Canal Presión de los neumáticos Ajustes Zapatas antideslizantes Ajuste del montaje del canal Prueba de control de la barrena Palanca de cambios Avance Retroceso Llave de encendido Control de obturación Control del regulador Cebador Manija del arrancador de retro- ceso Botón del arrancador eléctrico Salida del arrancador eléctrico Herramienta de limpieza Antes de encender el motor Aceite Gasolina Encendido del motor Arrancador eléctrico Arrancador de retroceso Detención del motor Procedimiento para engranar la transmisión Procedimiento para engranar las barrenas Mantenimiento de Motor Control del aceite del motor Cambio de aceite del motor Control de la bujía Lubricación Eje de engranaje Ruedas Control direccional del canal Eje de la barrena Placa de raspado y zapatas antideslizantes ajustes Soporte del canal Control de la barrena Reemplazo de la correa La Correa de la barrena La correa de la transmisión Extracción de la rueda de fricción Page LISTA DE MANTENIMIENTO Intervalo Artículo Servicio Tronco de Servicio Preparación del motor Preparación de la máquina quitanieve Problema Causa Remedio Page Declaración de Garantía del Sistema de Control de Emisiones (Derechos y obligaciones del propietario según la garantía contra defectos) COBERTURA DE LA GARANTÍA DEL FABRICANTE: RESPONSABILIDADES DEL PROPIETARIO SEGÚN LA GARANTÍA: DE 1995 Y VERSIONES POSTERIORES: Page la etiqueta de emisiones de su motor motor certificado Servicio experto Servicio ilimitado sin cargo Reemplazo del producto Descuento de 10% Servicio de instalación de Sears Page 1-800-4-MY-HOME® (1-800-469-4663)