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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 337 (Disc Brake System) >> Repair Instructions >> Front Disc Brake Pads Replacement (2500 Series) >> Removal Procedure

Removal Procedure

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  1. Inspect the fluid level in the brake master cylinder reservoir.
  2. If the brake fluid level is midway between the maximum-full point and the minimum allowable level, no brake fluid needs to be removed from the reservoir before proceeding.
  3. If the brake fluid level is higher than midway between the maximum-full point and the minimum allowable level, remove brake fluid to the midway point before proceeding.
  4. Raise and support the vehicle. Refer to Lifting and Jacking the Vehicle .
  5. Remove the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation .
    6. Fig 1: Front Brake Caliper Pistons
    GM370154Courtesy of GENERAL MOTORS CORP.
  6. Compress the brake caliper pistons.
    1. Install 2 large C-clamps over the top of the caliper housing and against the back of the outboard brake pad.
    2. Slowly tighten the C-clamps until the caliper pistons a pushed completely into the caliper bores.
    3. Remove the C-clamps from the caliper.
    7. Fig 2: Brake Caliper Mounting Pin Bolts
    GM789166Courtesy of GENERAL MOTORS CORP.
  7. Remove the brake caliper guide pin bolts.
    8. CAUTION:

    Support the brake caliper with heavy mechanic wire, or equivalent, whenever it is separated from its mount and the hydraulic flexible brake hose is still connected. Failure to support the caliper in this manner will cause the flexible brake hose to bear the weight of the caliper, which may cause damage to the brake hose and in turn may cause a brake fluid leak.

    CAUTION:

    Refer to Brake Caliper Caution .

  8. Remove the brake caliper from the brake caliper bracket and support with heavy mechanics wire or equivalent.
  9. Remove the brake pads from the brake caliper bracket.
  10. Note the orientation of the brake pad wear sensor (if equipped) for installation.
    11. NOTE:

    Do not reuse the brake pad retaining springs.

  11. Remove and discard the brake pad retaining springs.
  12. Inspect the brake caliper. Refer to Brake Caliper Inspection .
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