Component Tests and General Diagnostics

PARKING BRAKE: PARKING BRAKE ASSEMBLY: INSPECTION

INSPECTION

1. INSPECT BRAKE DISC INSIDE DIAMETER






(a) Using a brake drum gauge or equivalent, measure the inside diameter of the disc.
Standard inside diameter:
190 mm (7.480 in.)
Maximum inside diameter:
191 mm (7.520 in.)
2. INSPECT PARKING BRAKE SHOE LINING THICKNESS






(a) Using a ruler, measure the thickness of the shoe lining.
Standard thickness:
2.5 mm (0.098 in.)
Minimum thickness:
1.0 mm (0.039 in.)
3. INSPECT BRAKE DISC AND PARKING BRAKE SHOE LINING FOR PROPER CONTACT






(a) Apply chalk to the inside surface of the disc, then grind down the brake shoe lining to fit.
If the contact between the brake disc and the shoe lining is improper, repair it using a brake shoe grinder or replace the brake shoe assembly.