REMOVAL & INSTALLATION
Fig. 1: Use a brake cleaner to clean the brake surfaces
Fig. 2: Using a brake tool, remove the return spring from the anchor pin
Fig. 3: Remove the return spring and the adjuster cable guide
Fig. 4: Remove the adjuster cable
Fig. 5: Remove the shoe guide plate
Fig. 6: Disengage the hold-down spring retainers from the hold-down pins
Fig. 7: Remove the hold-down springs and pins
Fig. 8: Pull the shoes apart and then . . .
Fig. 9: . . . remove the parking brake strut and spring
Fig. 10: Remove the shoes from the backing plate
Fig. 11: Disengage the parking brake cable
Fig. 12: Lubricate the shoe contact points — 10 inch drum brake backing plate shown
Fig. 13: Adjusting the gauge to fit the brake drum
Fig. 14: Adjust the brake shoes to fit the gauge
Fig. 15: Adjusting the drum brakes using a brake spoon
Brake shoes may contain asbestos, which has been determined to be a cancer causing agent. Never clean the brake surfaces with compressed air! Avoid inhaling any dust from any brake surface! When cleaning brake surfaces, use a commercially available brake cleaning fluid.
NOTE: A brake spring removal tool and a brake adjusting gauge are required for this procedure.
- Raise and support the vehicle safely with jackstands.
- If the brakes have never been serviced before, the drums will be held on the wheel studs with spring nuts. Remove the spring nuts and discard.
- Turn the adjustment starwheel so that the brake shoes are retracted from the brake drum and remove the brake drum.
- Install wheel cylinder clamps to retain the wheel cylinder pistons in place and prevent leakage of brake fluid while replacing the shoes.
- Remove the U-clip and washer securing the adjuster cable to the parking brake lever.
- Remove the adjuster cable, cable guide, adjuster lever and adjuster springs. Remove the return springs with a brake spring remover tool.
- Remove the hold-down retainers and springs, then remove the brake shoes.
- Clean the backing plate with a brush or cloth. Place a dab of Lubriplate® on each spot where the brake shoes rub on the backing plate.
NOTE: Always replace brake linings in axle sets. Never replace linings on one side or just on one wheel.
- Thoroughly clean and lubricate the adjuster cable guides, adjuster screw and pivot, parking brake lever and lever pivot pin with multi-purpose grease.
- Apply a thin coat of multi-purpose chassis lube to the mounting pads on the backing plate.
- Transfer the parking brake actuating lever to the new secondary shoe.
- Position the brake shoes on the backing plate, then install the hold-down springs and retainers. Don't forget to engage the parking brake lever with the cable.
- Install the parking brake actuating bar and spring between the parking brake lever and primary shoe.
- Install the self-adjusting cable, cable guide and upper return springs.
- Thoroughly clean the starwheel and lightly lubricate the threads with lithium based grease.
- Install the starwheel.
- Install the self-adjusting cam and lower spring. A big pair of locking pliers is good for this job.
- Check the surface of the brake shoes for any grease that may have gotten on them. If dirty, lightly clean with a piece of sandpaper.
- Adjust the brakes, install the brake drum and wheel. Lower the vehicle and test drive.