The park brake must be adjusted any time the park brake
cables have been replaced or disconnected, or if park brake holding ability
is inadequate.
Before adjusting the park brake, check the condition of the service
brakes. Refer to
Drum Brake Hardware Inspection
in Drum Brakes. The service brakes must be adjusted properly
before proceeding with the park brake adjustment.
- Raise the vehicle. Refer to
Lifting and Jacking the Vehicle
in General Information.
- Rotate the rear wheels and note the amount of base brake adjustment
drag.
- Tighten the adjuster nut on the equalizer, periodically turning
the rear wheels by hand, until the drag on the rear brake shoes begins to
increase.
- Lower the vehicle.
- Fully apply and release the park brake lever to the floor three
times.
- Raise the vehicle.
- Repeat step 3.
- Loosen the adjuster nut on the equalizer two revolutions. The
brake drag should be the same as it was in step 2.
- Lower the vehicle.