Diesel Data: Automotive Repair

Removal and Replacement

Parking Brake Shoe Replacement

CAUTION
Frequent inhalation of brake pad dust, regardless of material composition, could be hazardous to your health.
^ Avoid breathing dust particles.
^ Never use an air hose or brush to clean brake assemblies. Use an OSHA-approved vacuum cleaner.


Disassembly
1. Raise the rear of the vehicle, and support it with safety stands in the proper locations.
2. Remove the rear wheels.
3. Release the parking brake and remove the rear brake caliper and brake disc/drum.
4. Disconnect and remove the upper return springs (A).





5. Remove the tension pins (A) by pushing the respective retainer spring (B) and turning the pin.





6. Disconnect the rod spring (A), from the connecting rod (B), and remove the rod spring and the connecting rod.





7. Lower the parking brake shoe assembly.
8. Remove the forward brake shoe (A) by removing the lower return spring (B) and adjuster assembly (C).





9. Remove the rearward brake shoe (A) by disconnecting the parking brake cable (B) from the parking brake lever (C).





10. Remove the U-clip (A), wave washer (B), parking brake lever (C), and pivot pin (D) from the brake shoe (E).





Reassembly
1. Apply Molykote 44MA grease to the sliding surface of the pivot pin (A), and insert the pin into the rearward brake shoe (B) from the outside.





2. Install the parking brake lever (C) and wave washer (D) on the pivot pin, and secure with a new U-clip (E).
^ Install the wave washer with its convex side facing out.
^ Pinch the U-clip securely to prevent the parking brake lever coming out from the brake shoe.

3. Connect the parking brake cable (A) to the parking brake lever (B). Apply silicone grease to the cable contact surface (C) on the backing plate.





4. Apply a thin coat of Molykote 44MA grease to the shoe ends and connecting rod ends (A), sliding surfaces (B), and opposite edges of the parking brake shoe (C) as shown. Wipe off any excess. Keep grease off the brake linings.





5. Clean the threaded portions of the clevis A, and coat the threads of the clevis with grease. Clean the sliding surface of the clevis B, and coat the sliding surface of the clevis B with grease. Install the clevis A and B on the adjuster (C) and shorten the clevis A by turning the adjuster.





6. Install the brake shoe adjuster assembly (D), and hook the lower return spring (E) on the parking brake shoes.
7. Hook the rod spring (A) or the connecting rod (B) first with the spring end (C) pointing downward. Then hook the rod spring to the parking brake shoe, and install the connecting rod on the parking brake shoes.





8. Install the tension pins (A) and retainer springs (B). Make sure the tension pin does not contact the parking brake lever.





9. Install the upper return springs (A).





10. Install the rear brake disc/drum and rear brake caliper.
11. Do the major parking brake adjustment.
12. Do the parking brake shoe lining break-in.