Disc Removal and Installation, Rear

Brake Disc

Material:

Disc Brake System - Exploded View:

Removal

1. WARNING: The electrical power to the air suspension system must be shut off prior to hoisting, jacking or towing an air suspension vehicle. This can be accomplished by turning off the air suspension service switch. Failure to do so can result in unexpected inflation or deflation of the air springs, which can result in shifting of the vehicle during these operations. Failure to follow these instructions may result in personal injury.

If equipped, turn the air suspension service switch to the OFF position.

2. WARNING: If equipped with fire suppression system, depower the system. For important safety warnings and procedures, refer to Fire Suppression System.

With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Maintenance/Service and Repair.
3. Remove the brake pads.

4. NOTE: If the brake disc binds on the rear parking brake shoes and linings, remove the adjustment hole access plug and retract the parking brake shoe and lining, using an adjusting tool.





Insert the tool at the end of the access plug slot farthest from the brake caliper. Engage the adjuster and rotate by raising the end of the tool toward the backing plate. Remove the brake disc.

5. CAUTION: Use a hub-mount brake lathe if necessary to machine the brake disc.





Measure the brake disc and resurface as necessary. Install a new brake disc if beyond specification.
6. Clean any rust or foreign material from the brake disc, the wheel and the wheel hub.
^ Use brake parts cleaner to clean the brake disc and hub surfaces.
^ Apply anti-seize lubricant to the hub flange and pilot area.
7. To install, reverse the removal procedure.
^ If equipped, turn the air suspension service switch to the ON position.

8. WARNING: If equipped with fire suppression system, repower the system. For important safety warnings and procedures, refer to Fire Suppression System.

If equipped with fire suppression system, repower the system.
9. If equipped, turn the air suspension service switch to the ON position.