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MAINTENANCE
HOW TO ADJUST THE BLADE ROTATION CONTROL
A
ARNING: 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 throttlecontrolin in the FAST
poeition.
2.
Move the blade rotation control to the DISENGAGE position
(Figure 17).
3.
Stop the engine. Disconnect the wire from the spark plug.
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 ho/e.
7.
Again check the quality of cut. if the quality of cut has not im-
proved, 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 an authorized service center.
B.
Move the blade rotation control
to the DISENGAGE poal.
tion. Stop the engine, Disconnect the wire from the spark plug.
Check the operation ofthe blade brake. Rotate the pulleys with
your hand, Make sure the brake pads are pressed tightly
against the pulleys (Figure 1B),
Blade Rotation Control
Engage Position
Figure 17
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.
A
WARNING: If the brake pads do not press tightly
against the pulleys, take the unit to an authorized
service center.
Blade Brake
(Pad Against Pulley)
i iiii!i!
F_gure lg
5,
Disconnect the blade drive spring from the blade control
rod. Move the blade drive
spring
to the middle
hole
(Figure 18). This will increase the tension on the mower drive
belt.
DISENGAGE POSITION
Blade
Control Rod
Top Hole (New BeR)
Middle Hole
• ;ttorn Hole
Blade Ddve Spring
g.
tO.
11.
Move the blade rotation control to the ENGAGE position.
Check the pads for the blade brake. Ifthe pads are excessively
worn or damaged, replace the brake pad assemblies. Correct
replacement parts and assistance are available from an autho-
rized service center.
Attach the wire to the spark plug. Mow for a short distance and
again check the operation of the blade rotation control.
When
you
move
the blade
rotation
control
to the
DISENGAGE position, all movement witl stop within five se-
conds, ff 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 an autho-
rized service center.
Figure t8
12. If you replace
the mower
drive
belt, move the blade
drtve
spring
to the top hole (Figure 18).
710933
22
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