Sears 247.8879 Service And Maintenance, Friction Wheel Removal, Maintenance Schedule, Interval

Models: 247.8879

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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

 

 

 

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Sears 247.8879 Service And Maintenance, Friction Wheel Removal, Maintenance Schedule, Interval, Service Log