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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc Brakes >> Repair Instructions >> Rear Brake Caliper Overhaul >> Assembly Procedure

Assembly Procedure

    Fig 1: View Of Brake Caliper Pistons, Boots & Seals
    GM369669Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice .
  1. Install the brake caliper bleed screw.

    Tighten:  Tighten the brake caliper bleed screw to 12 N.m (106 lb in).

  2. Install the brake caliper bleed screw cap.
  3. Lubricate the new piston seal and the brake caliper bore seal groove with brake fluid, GM P/N 12388967 (Canadian P/N 992667).
  4. Install new the seal into the brake caliper bore seal groove.
  5. Ensure that the seal is not twisted.
  6. Lubricate the brake caliper bore and the piston with brake fluid, GM P/N 12388967 (Canadian P/N 992667).
  7. Install the boot and the piston.
    1. Install the boot over the end of the piston so that the fold will face toward the brake caliper housing piston bore opening.
    2. Seat the boot into the brake caliper bore groove. Slide the piston into the brake caliper bore.
    3. Push down the piston to the bottom of the brake caliper bore.
    4. Ensure that the boot properly seats into the piston groove and into the groove in the brake caliper bore.
    5. Repeat steps 5 and 6 for the remaining piston.
  8. Install the brake caliper to the vehicle. Refer to Rear Brake Caliper Replacement .
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