Murray 309007x8B manual Maintenance, How To Check The Blade Rotation Control

Models: 309007x8B

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HOW TO CHECK THE BLADE ROTATION CONTROL

MAINTENANCE

HOW TO CHECK THE BLADE ROTATION CONTROL

WARNING: To prevent an injury, the blade rotation control must operate correctly.

In normal usage, the blade rotation control will not require an adjustment. However, if the cutting performance decreases or the quality of cut is poor, make the following changes.

1.When you mow, make sure the throttle control in in the FAST position.

2.Move the blade rotation control to the DISENGAGE position (Figure 18).

3.Stop the engine. Disconnect the wire from the spark plug.

Disengage

Position

Blade Rotation Control

Engage Position

Figure 18

4.Check the blade(s). Keep a sharp edge on the blade(s). A blade that is not sharp will cause the tips of the grass to become brown.

5.If the quality of cut has not improved, replace the mower drive belt. See “How To Replace The Mower Drive Belt”. If replacing the belt does not correct the problem, take the unit to a Sears or other qualified service center.

6.Move the blade rotation control to the DISENGAGE posi- tion. Stop the engine. Disconnect the wire from the spark plug.

7.Check the operation of the blade brake. Rotate the pulley with your hand. Make sure the brake pad is pressed tightly against the pulley (Figure 19).

WARNING: If the brake pad does not press tightly against the pulley, take the unit to a Sears or other qu- alified service center.

8.Move the blade rotation control to the ENGAGE position.

9.Check the pad for the blade brake. If the pad is excessively worn or damaged, replace the brake pad assemblies. Correct replacement parts and assistance are available from a Sears service center.

10.Attach the wire to the spark plug. Mow for a short distance and again check the operation of the blade rotation control.

11.When you move the blade rotation control to the DISENGAGE position, all movement will stop within five se- conds. If there is movement of the belt or the blades continue to rotate, engage and disengage the blade rotation control five times to remove any excess rubber from a new mower drive belt. If you need assistance, take the unit to a Sears or other qualified service center.

 

Blade Brake

 

(Pad Against Pulley)

 

Figure 19

F−050611L

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Murray 309007x8B manual Maintenance, How To Check The Blade Rotation Control