Park Brake Hardware Inspection

Park Brake Hardware Inspection






Caution: Refer to Brake Dust Caution in Service Precautions.

1. With the brake drums removed, visually inspect the upper return/adjuster actuator spring (3) and the lower return spring (7) for the following:
- Excessive corrosion
- Excessive stretching
- Broken hook ends
- Twisting or binding
2. If any of the conditions listed were found, which could lead to improper park brake apply and/or release, the adjuster hardware and/or return springs require replacement.
3. Visually inspect the adjuster (2) and the adjuster actuator lever (1) for the following:
- Misalignment with the park brake lever (5)
- Misalignment with the drum brake shoes
- Broken or bent adjuster actuator lever (1)
- Bent adjuster actuator lever pivot pin
4. If any of the conditions listed were found, which could lead to improper park brake apply and/or release, the adjuster hardware requires repair or replacement.
5. Inspect the park brake lever (5) for the following:
- Bent
- Broken pivot pin
- Seized at the pivot pin
- Broken at park brake cable attachment
- Improper contact with the adjuster
6. If any of the conditions listed were found, which could lead to improper park brake apply and/or release, the park brake lever requires repair or replacement.
7. Visually inspect the park brake cable (6) for the following:
- Improper mounting to the backing plate
- Improper mounting at the park brake lever
- Broken or missing cable end lug
8. If any of the conditions listed were found, which could lead to improper park brake apply and/or release, the park brake cable requires repair or replacement.
9. Apply the park brake lever/pedal three clicks.
10. Visually inspect the park brake cable for the following:
- Unequal travel between the left and the right park brake systems
- No travel on one or both of the park brake systems
11. If any of the conditions listed were found, which could lead to improper park brake apply and/or release, the park brake cable requires replacement and/or adjustment.
12. Release the park brake lever/pedal.
13. Visually inspect the park brake cable for the following:
- Unequal release between the left and the right park brake systems
- No release at one or both of the park brake systems
14. If any of the conditions listed were found, which could lead to improper park brake apply and/or release, the park brake cable requires replacement and/or adjustment.