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Brake Maintenance
Adjusting the Parking Brakes
Adjust the brakes when there is more than 2.5 cm (1 inch)
of free travel
(Figure
67) of the brake pedal, or when more
holding force is required. Free travel is the distance the brake
pedal moves before you feel braking resistance.
Figure 67
1. Free travel
Note: Use the wheel motor backlash to rock the drums
back and forth to ensure that the drums are free prior to and
after adjustment.
1. To reduce free travel of the brake pedals, tighten the
brakes by loosening the front nut on the threaded end
of the brake cable
(Figure
1
Figure 68
1. Brake cables
2. Tighten the rear nut to move the cable backward until
brake pedals have .63 to 1.27 cm (1/4 to 1/2 inch) of
free travel
(Figure
67), before wheel lock up is achieved.
3. Tighten the front nuts, ensuring that both cables
actuate the brakes simultaneously. Ensure that the cable
conduit does not rotate during tightening procedure.
68).
2
2. Front nuts
Adjusting the Parking Brake
Latch
If the parking brake fails to engage and latch, an adjustment
to the brake pawl is required.
1. Loosen the 2 screws securing the parking brake pawl
to the frame
(Figure
1
1. Brake cables
2. Screws (2)
2. Press the parking brake pedal forward until the brake
detent completely engages on the brake pawl
69).
3. Tighten the 2 screws locking the adjustment.
4. Press the brake pedal to release the parking brake.
5. Check the adjustment and readjust as required.
47
69).
3
4
Figure 69
3. Parking brake pawl
4. Brake detent
2
(Figure
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