Brake Shoe: Service and Repair

Brake Shoe Replacement

Removal Procedure

1. Raise the vehicle and support the vehicle with safety stands.
2. Remove the tire and wheel assembly.
3. Mark the relationship of the brake drum to the axle hub.
4. Remove the brake drum from the axle.




5. Remove the brake shoe return springs.




6. Remove the brake shoe guide.




7. Remove the hold down springs.
8. Remove the actuator lever and the actuator lever pivot.
9. Remove the actuator lever return spring.
10. Remove the actuator link.




11. Remove the park brake strut and the strut spring.
12. Remove the park brake lever.




13. Remove the brake shoes.
14. Remove the adjusting screw assembly.
15. Remove the adjusting screw spring from the brake shoes.
16. Inspect all parts for discoloration due to heat or stress. Replace parts as needed.
17. Replace all worn parts.
18. Inspect the wheel cylinder for signs of leakage.
19. Inspect the brake drum for scoring and machining tolerance.
Refer to Brake Drum; Testing and Inspection; Procedures.

Installation Procedure




1. Lubricate the brake shoe backing plate, the adjusting screw threads, socket and socket face with a thin coat of white lithium grease or equivalent.

Important: Do not interchange the right and left adjusting screws.




2. Install the adjusting screw assembly and the adjusting screw spring on the brake shoes. The coils of the adjusting screw spring must not touch the adjusting screw.
3. Install the brake shoes on the backing plate.




4. Install the park brake lever.
5. Install the strut spring on the park brake strut.
6. Install the park brake strut.




7. Install the actuator lever and the lever pivot.
8. Install the actuator link.
9. Install the actuator lever return spring.
10. Install the hold down pins.
11. Install the hold down springs.




12. Install the brake shoe guide and the actuator link.




13. Install the brake shoe return springs.
14. Install the brake drum. Align the marks made during the disassembly.
15. Install the tire and wheel assembly. Align the marks made during the disassembly.
16. Adjust the brakes.
Refer to Drum Brake System; Adjustments.
17. Remove the safety stands and lower the vehicle.