Brake Shoe: Testing and Inspection

Brake Shoe Inspection

1. Raise and suitably support the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair.
2. Remove the wheel. Refer to Tire and Wheel Removal and Installation Service and Repair.
3. Release the park brake.
4. Remove the drum. Refer to Drum Brake Adjustment Adjustments.
5. Measure the lining thickness.

The minimum lining thickness is 0.5 mm (0.02 in).

Caution: Avoid taking the following actions when you service wheel brake parts:

* Do not grind brake linings.
* Do not sand brake linings.
* Do not clean wheel brake parts with a dry brush or with compressed air.

Some models or aftermarket brake parts may contain asbestos fibers which can become airborne in dust. Breathing dust with asbestos fibers may cause serious bodily harm. Use a water-dampened cloth in order to remove any dust on brake parts. Equipment is available commercially in order to perform this washing function. These wet methods prevent fibers from becoming airborne.

Important: Replace the shoe and lining assembly in axle sets only.


6. Install the drum, if removed. Refer to Drum Brake Adjustment Adjustments.
7. Install the wheel, if removed. Refer to Tire and Wheel Removal and Installation Service and Repair.
8. Lower the vehicle.