Brake Drums Removed

WARNING: Do not inhale dust from brakes or associated components. Inhalation of dust can be injurious to your health. Compressed air or brushes must not be used to clean brakes, brake drums and associated components. A vacuum cleaner equipped for this purpose should be carefully used to remove any dust (Rotunda model 091-00001). Adherent dust should be removed with a damp rag. Any dust should be contained in a sealed and labeled bag for disposal. Wear an approved high efficiency cartridge or air line respirator and use extra caution to avoid breathing this dust. Always use non-asbestos replacement parts.

NOTE: The rear brakes are automatically adjusted while driving the vehicle in reverse and sharply applying the brakes, and then driving forward. It may be necessary to do this several times to obtain the proper rear brake adjustment. Manual brake adjustment is required only after the brake shoes have been replaced, or if brake shoe adjusting lever kit has malfunctioned and has been repaired or replaced. Perform the manual adjustment with the brake drums removed, using Brake Adjustment Gauge D81L-1103-A or equivalent and the procedure described below. When adjusting the rear brake shoes, check the parking brake rear cable and conduit for proper adjustment. Make sure the equalizer operates freely.

1. Raise vehicle on hoist. Position suitable safety stands under vehicle. Remove wheel. Remove brake drum.
2. Use Rotunda Brake and Clutch Service Vacuum 091-00001 or equivalent to remove any dust present on the brake assembly.
3. Carefully remove the brake shoe hold down spring. Using sandpaper, clean the shoe-to-backing plate contact points while holding the shoe away from the brake backing plate.

Backing Plate Lubrication Points:

4. Check brake backing plate for damage. If any damage is found, it must be replaced. If no damage is found, apply a small amount of Disc Brake Caliper Slide Grease D7AZ-19590-A (ESA-M1C172-A) or equivalent to the points where the shoes touch the brake backing plate. Be careful not to get the lubricant on the linings.
5. Reinstall brake shoe hold down spring.

Brake Adjustment Gauge:

6. Using Brake Adjustment Gauge D81L-1103-A or equivalent adjust to the inside diameter of the drum braking surface.

Brake Adjustment Gauge:

7. Reverse the tool as shown and adjust the brake shoes until they touch the gauge. The gauge contact points on the shoes must be parallel to the vehicle with the center line through the center of the axle.
8. Hold the brake shoe adjusting lever kit out of engagement while rotating the adjusting screw part of brake adjuster screw, to prevent burring the screw slots. Make sure the adjusting screw rotates freely.
9. If necessary, remove the adjuster for disassembly and cleaning, then lubricate the adjusting screw threads and pilot end with a thin, uniform coating of Disc Brake Caliper Slide Grease D7AZ-19590-A (ESA-M1C172-A) or equivalent.
10. Install the brake drums. Install the retaining nuts and tighten securely.
11. Install the wheel on the drums and tighten the mounting nuts to 114-141 Nm (85-105 ft lb). Remove the safety stands and lower the vehicle.
12. Complete the adjustment by sharply applying the brakes several times while driving the vehicle alternately in forward and reverse.
13. After adjusting the brake shoes, check brake operation by making several stops while driving forward.

CAUTION: Perform the road test only when the brakes will apply and the vehicle can be safely stopped.