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Park Brake Actuator: Installation

  1. Install the park brake actuator lever housing to the backing plate. See Fig 1 .
  2. Perform the following procedure before installing the backing plate bolts.
    1. Remove all traces of the original adhesive patch.
    2. Clean the threads of the bolt with brake parts cleaner or the equivalent and allow to dry.
    3. Apply Threadlocker GM P/N 12345493 or Red LOCTITE(tm) #272 to the threads of the bolt.
  3. Install the backing plate bolts. Tighten the backing plate bolts. See TORQUE SPECIFICATIONS  .
  4. Install the park brake shoe. See PARK BRAKE SHOE  . See Figure .
  5. Install the axle shaft.
  6. Adjust the park brake shoe. See PARK BRAKE ADJUSTMENT  under ADJUSTMENTS & INSPECTIONS.
  7. Install the rear brake rotor.
  8. Install the rear park brake cable to the park brake actuator lever.
  9. Install the park brake cable to the mounting bracket, ensuring the locking tabs are secured.
  10. Install the rear brake caliper and mounting bracket assembly. See REAR BRAKE CALIPER BRACKET  .
  11. Install the tire and wheel assembly. Lower vehicle.
  12. Enable the park brake automatic adjuster. See PARK BRAKE CABLE AUTOMATIC ADJUSTER  under ADJUSTMENTS & INSPECTIONS.
Fig 1: Installing Park Brake Actuator Lever Housing To Backing Plate
G00307604Courtesy of GENERAL MOTORS CORP.
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