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22
10. Move the blade rotation control to the ENGAGE
position (see F
Figure 23
).
11. Check the pad for the blade brake (7) (see F
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.
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 N-m
(30 ft-lbs).
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 F
Figure 13
).
2. Move the blade rotation control to the DISEN-
GAGE position (1) (see F
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). Mov e the blade drive spring
to the middle hole (see F
Figure 24
). This will in-
crease the tension on the mower drive belt.
2
1
Figure 23
2
1
4
3
5
Figure 24
WARNING
If the brake pads do not press tightly against the
pulleys, take the unit to an authorized service
center.
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 F
Figure 25
).