Parking Brake Shoe: Testing and Inspection

INSPECTION




1. MEASURE BRAKE SHOE LINING THICKNESS
Using a ruler, measure the thickness of the shoe lining.
Standard thickness: 2.5 mm (0.098 inch)
Minimum thickness: 1.0 mm (0.039 inch)
If the lining thickness is at the minimum thickness or less, or if there is severe and uneven wear, replace the brake shoe.




2. INSPECT PARKING BRAKE LINING AND DISC FOR PROPER CONTACT
Apply chalk to the inside surface of the disc, then grind down the brake shoe lining to fit. If the contact between the disc and the brake shoe lining is improper, repair it using a brake shoe grinder or replace the brake shoe assembly.





3. MEASURE CLEARANCE BETWEEN PARKING BRAKE SHOE AND LEVER
Using a feeler gauge, measure the clearance.
Standard clearance: Less than 0.35 mm (0.0138 inch)
If the clearance is not within the specification, replace the shim with one of the correct size.
4. IF NECESSARY, REPLACE SHIM