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Brake Maintenance
Adjusting the Service
Brakes
Adjust the service brakes when there is more than 25
mm (1 inch) of free travel of the brake pedal, or when
the brakes do not work effectively. Free travel is the
distance that the brake pedal moves before you feel
braking resistance.
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
1
Figure 71
1. Brake cables
2. Tighten the rear nut to move the cable backward
until brake pedals have 1.27 to 1.9 cm (1/2 to
3/4 inch) of free travel before the wheels lock up.
3. Tighten the front nuts, ensuring that both cables
actuate the brakes simultaneously.
(Figure
71).
2
g011616
2. Front nuts
Adjusting the Parking
Brake
If the parking brake fails to engage, an adjustment to
the brake pawl is required.
1. Loosen the 2 screws securing the parking-brake
pawl to the frame
1
1. Brake cables
2. Screws (2)
2. Press the parking-brake pedal forward until the
brake detent completely engages on the brake
pawl
(Figure
72).
3. Tighten the 2 screws to lock the adjustment.
4. Press the brake pedal to release the parking
brake.
5. Check the adjustment and adjust it again as
required.
57
(Figure
72).
3
4
Figure 72
3. Parking-brake pawl
4. Brake detent
2
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