How To Adjust The Blade Rotation Control - YARD KING 42566x89 Instruction Book

MAINTENANCE
HOW TO 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 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 15).
3. Stop the engine, Disconnect the wire from the spark plug.
Blade Rotation Control
Engage Pc_ition
Figure 15
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.
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 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.
8.
Move the blade rotation control to the DISENGAGE posi-
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 17).
g.
Move the blade rotation control to the DISENGAGE posi-
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 18).
,_ WARNING: If the brake pads do not press tightly
against the pulleys, take the unit to an authorized
service center.
Blade Brake
(Brake Pad Against Pulley)
Figure 17
5.
Disconnect the blade drive spring from the blade control
rod. Move the blade drive spring to the middle hole
(Figure 16). This wil! increase the tension on the mower drive
belt.
DISENGAGE POSITION
\
\
_Top Hole (New Belt)
Control Rod __ M,ddle Hole
,_t_ Bottom Hole
Blade Drive Spring Figure 18
710846
21
Blade Brake
(Pad Against Pulley)
Figure 18
to. Move the blade rotation control to the ENGAGE position.
Check the pads for the blade brake. If the pads are excessively
worn or damaged, replace the brake pad assemblies. Correct
replacement parts and assistance are available from an autho-
rized service center,
11. Attachthewiretothesparkplug. Mowforashort atstanceand
again check the operation of the blade rotation control.