Drive System
Maintenance
Adjusting the Self-propel
Drive
If the lawn mower does not self-propel or has a
tendency to creep forward when the control bar is
more than 1-1/2 inches (3.8 cm) from the handle,
adjust the wheel drive control knob on the rear of
the gear box.
1. Close the door in the lawn mower housing and
remove the grass bag.
2. Rotate the control knob clockwise a half turn
if the lawn mower does not self-propel. If the
lawn mower creeps forward, rotate the knob a
half turn counterclockwise to loosen the belt
(Figure 26).
Figure 26
1. Control knob
3. Slowly pull the lawn mower backward while
you gradually move the control bar toward the
handle.
Note:
The adjustment is correct when the
rear wheels stop turning and the control bar
is about one inch (2.5 cm) from the handle
(Figure 27).
Figure 27
1. 1 inch (2.5 cm)
Servicing the Wheels
Removing the Wheels
1. Stop the engine and wait for all moving parts
to stop.
2. Disconnect the wire from the spark plug
3. Remove the bolt, the wheel spacer, and the
locknut mounting the wheel to the pivot arm
(Figure 28).
Figure 28
1. Locknuts
6. Plastic cover (rear wheels
only)
2. Wheel spacer
7. Lug
3. Bearing/hub assembly
8. Bearing (2)
4. Bearing spacer
9. Bolt
5. Wheel half
4. Separate the wheel halves from the tire by
removing 4 bolts and 4 locknuts (Figure 28).
Note:
If you remove the bearings from
the bearing/hub assembly, remove them by
pressing on the bearing spacer (Figure 28).
Assembling the Wheels
1. Position the tire onto one wheel half, aligning
the lugs on each (Figure 28).
2. Place the bearing/hub assembly into the center
hole of the wheel half. Ensure that the legs of
the hub are positioned over the flange of the
hole (Figure 28).
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