Express 2500 V8-6.6L DSL Turbo (2010)
Brake Caliper: Overhaul
Front Brake Caliper Overhaul (JH6, JH9)
Front Brake Caliper Overhaul (JH6, JH9)
Warning: Refer to Brake Dust Warning (See: Service Precautions/Technician Safety Information/Brake Dust Warning).
Warning: Refer to Brake Fluid Irritant Warning (See: Service Precautions/Technician Safety Information/Brake Fluid Irritant Warning).
Disassembly Procedure
Warning
Do not place fingers in front of the caliper piston(s) in an attempt to catch or protect it when applying compressed air. The piston(s) can fly out with
force and could result in serious bodily injury.
1. Remove the brake caliper from the vehicle. Refer to Front Brake Caliper Replacement (JH5) (See: Removal and Replacement/Front Brake
Caliper Replacement (JH5)) Front Brake Caliper Replacement (JH6, JH9) (See: Removal and Replacement/Front Brake Caliper Replacement
(JH6, JH9)).
2. Place a thin piece of wood in front of the piston in order to prevent damage. Remove the piston by directing compressed air into the brake hose
inlet fitting port of the brake caliper housing.
3. Remove the piston boot.
4. Remove the piston seal.
5. Remove the brake caliper bleed screw cap.
6. Remove the brake caliper bleed screw.
7. Inspect the brake caliper bore and the piston seal groove for scoring and corrosion. If you find excessive scoring or corrosion around the piston
seal area, replace the brake caliper housing.