Removal and Installation
PARKING BRAKE SHOEExploded View PB-7:
Removal and Installation
REMOVAL
WARNING: Clean brakes with a vacuum dust collector to minimize the hazard of airborne particles or other materials.
1. Remove wheel and tire.
2. Remove the brake rotor with the parking brake lever completely disengaged. If the brake rotor cannot be removed, remove as follows:
a. Secure the brake rotor with the wheel nut and remove the adjuster hole plug.
b. Insert a flat-bladed screwdriver or suitable tool through the plug opening and rotate the star wheel on the adjuster assembly in the direction as shown to retract the parking brake shoes.
3. Remove the parking brake shoe springs.
4. Remove retainer springs, parking brake shoes, strut, and adjuster. Then remove lever from brake shoe.
INSPECTION AFTER REMOVAL
^ Visually inspect the lining for abnormal wear, damage and peeling.
^ Using a micrometer, measure the thickness "A" of the lining.
Standard lining thickness: 3.2 mm (0.126 in)
Lining wear limit "A": 1.5 mm (0.059 in)
^ Visually inspect the inside of the drum for abnormal wear, damage and cracks. Using a pair of vernier calipers, measure the inside diameter of the drum.
Standard inner diameter: 172 mm (6.77 in)
Maximum inner diameter: 173 mm (6.81 in)
CAUTION: If necessary, remove the parking brake shoe and check as follows.
^ Check the shoe sliding surface for abnormal wear and damage.
^ Check the anchor pin for abnormal wear and corrosion.
^ Check the return springs for sagging.
^ Check the adjuster for rough operation.
INSTALLATION
Installation is in the reverse order of removal.
^ Apply brake grease to the contact areas on baffle plate.
^ The orientation of the adjuster is different from LH to RH brakes. Assemble the adjuster so that the threaded part is expanded when rotating it in the direction as shown. Completely retract the adjuster to assemble. When disassembling the adjuster, apply brake grease to the threads.
^ After installing parking brake shoes and rotor, adjust the parking brake.