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Drive System
Maintenance
Adjusting the Self-propel Drive
Service Interval: Every 100 hours
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 28).
Figure 28
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 29).
Figure 29
1. 1 inch (2.5 cm)
Controls System
Maintenance
Adjusting the Blade Brake
Cable
Service Interval: Every 100 hours
Whenever you install a new blade brake cable assembly
or replace the belt, adjust the blade brake cable.
1. Stop the engine and wait for all moving parts to stop.
2. Disconnect the wire from the spark plug (Figure 11).
3. Loosen the cable clamp screw until the brake cable
conduit slides (Figure 30).
1. Spring
2. Cable conduit
4. Pull the cable to the remove slack, but do not put
tension on the spring. Tighten the cable clamp screw
to lock the adjustment in place.
WARNING
Do not overtighten the blade brake cable.
Overtightening the blade brake cable could cause
the blade brake to come off of the brake drum. If
the brake does not contact the drum, the blade will
not stop rotating when you release the control bar.
A rotating blade could cause serious personal injury.
• Each time you adjust the brake cable, ensure
that the brake stops the blade in 3 seconds or
less.
• If the blade does not stop rotating in 3 seconds
or less, bring the lawn mower to an Authorized
Service Dealer for inspection and repair.
22
Figure 30
3. Cable clamp screw and
washer
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