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3. Working from the fan side of the radiator, blow out
debris with low pressure (50 psi) compressed air (do
not use water). Repeat the step from the front of the
radiator and again from the fan side.
4. After the radiator is thoroughly cleaned, clean out
debris that may have collected in the channel at the
radiator base and around the frame. Also, clean out
the engine compartment and brake linkage to assure
optimum performance.
5. Close the clean out cover and secure the flange nut.
6. Close the hood.
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 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 (Figure 36).
1
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 wheel lock up is achieved.
3. Tighten the front nuts, ensuring that both cables
actuate the brakes simultaneously.
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 (Figure 37).
37
2
Figure 36
2. Front nuts
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