Maintenance
WARNING
Always keep the nut tight that holds the blade. A loose nut or blade can cause an accident.
11.Tighten the nut that holds the blade to 41,5
12.Install the mower housing. See “Remove the Mower Housing.”
Adjust 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 re- quire an adjustment. However, if the cutting perform- ance decreases or the quality of cut is poor, make the following changes.
1.When you mow, make sure the throttle control (7) is in the FAST position (see Figure 13).
2.Move the blade rotation control to the DISEN- GAGE position (1) (see Figure 23).
3.Stop the engine. Disconnect the wire from the spark plug.
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.Disconnect the blade drive spring (2) from the blade control rod (1). Move the blade drive spring to the middle hole (see Figure 24). This will in- crease the tension on the mower drive belt.
1 |
2 |
Figure 23 |
1 | 3 | |
2 | 4 | |
5 | ||
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| Figure 24 |
6.Attach the wire to the spark plug. Mow for a short distance and again check the quality of cut. If necessary, move the blade drive spring to the bottom hole.
7.Again check the quality of cut. If the quality of cut has not improved, replace the mower drive belt. See ”Replace the Mower Drive Belt.” If replacing the belt does not correct the problem, take the unit to an authorized service center.
8.Move the blade rotation control to the DISEN- GAGE position. Stop the engine.
9.Check the operation of the blade brake. Rotate the mandrel pulley with your hand. Make sure the brake pad is pressed tightly against the mandrel pulley (see Figure 25).
WARNING
If the brake pads do not press tightly against the pulleys, take the unit to an authorized service center.
10.Move the blade rotation control to the ENGAGE position (see Figure 23).
11.Check the pad for the blade brake (7) (see Figure 25). If the pad is excessively worn or damaged, replace the brake pad assembly. Correct replace- ment parts and assistance are available from an authorized service center.
12.Attach the wire to the spark plug. Mow for a short distance aned again check the operation of the blade rotation control.
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