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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
when more holding force is required. Free travel is
the distance the brake pedal moves before you feel
braking resistance.
Figure 53
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 54
1. Brake cables
2.
Tighten the rear nut to move the cable backward
until brake pedals have 0.63 to 1.27 cm (1/4 to
1/2 inch) of free travel
lock up is achieved.
3.
Tighten the front nuts, ensuring that both cables
actuate the brakes simultaneously. Ensure
53) of the brake pedal, or
(Figure
54).
2. Front nuts
(Figure
53), before wheel
that the cable conduit does not rotate during
tightening procedure.
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
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1. Brake cables
2. Brake detent
2.
Press the parking brake pedal forward until the
brake detent completely engages on the brake
pawl
(Figure
3.
Tighten the 2 screws locking the adjustment.
4.
Press the brake pedal to disengage the parking
brake.
5.
Check the adjustment and adjust as required.
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50
(Figure
55).
Figure 55
3. Parking brake pawl
4. Screws (2)
55).
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