Diesel Data: Automotive Repair

Removal

For additional information see Notes, Warnings, and Hints.

Brake Components - 10 Inch Drum:





1. Remove the wheel and drum.
2. Inspect brake cylinder for signs of leaks or presence of rust by removing the boots and inspecting interior surfaces.

NOTICE: Water leaking into the cylinder past the boots will cause rust to form and may cause the cylinder to seize. If the boots are not removed, brake fluid leakage past the cups may go undetected because the boots may seal the fluid in the cylinder. If leaks are found, the brake cylinders must be removed and repaired or replaced.

Compressing The Brake Cylinder:





3. If no leaks are found, install a brake cylinder clamp over the ends of the cylinder as shown.
4. Contract the shoes as follows:

a. Disengage the adjusting lever from the adjusting screw by pulling backward on the adjusting lever cable.
b. Shorten the length of the adjuster by screwing the threaded rod in. This is done by moving the outward side of the adjusting screw upward until the pivot nut is backed off as far as it will go.

Adjustment Lever Assembly:






5. Pull the adjusting lever, cable and automatic adjuster spring down and toward the rear to unhook the pivot hook from the large hole in the secondary shoe web.

CAUTION: Do not pry the pivot hook out of the hole.

6. Remove the automatic adjuster spring and adjusting lever.

NOTICE: Note the color and position of each spring, they must be re-assembled in same position.

Removing/Installing Brake Springs:






7. Remove the secondary shoe-to-anchor spring using a suitable brake spring removal / installation tool. Using the same tool, remove the primary shoe-to-anchor spring and unhook the cable anchor. Remove the anchor pin plate (if equipped).

NOTE: For additional information see Brake Spring Removal and Installation Notes.
8. Remove the cable guide from the secondary shoe.

Removing/Installing Shoe Hold Down Springs:






9. Remove the shoe hold-down springs using a hold down spring tool. Remove the shoes, adjusting screw, pivot nut, and socket.
10. Remove the parking brake link and spring. Disconnect the parking brake cable from the parking brake lever.

Park Brake Lever Assembly:






11. Remove the brake secondary shoe. Remove the retainer clip and spring washer and remove the parking brake lever.