GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2009 🢒 TopKick C-Series (Conventional) C4/C5 🢒 Brakes 🢒 Air Brakes 🢒 Instrument Panel Mounted Air Brake Park Control Valve Replacement

Removal Procedure

    Object Number: 894452 Size: SH
  1. Block the wheels.
  2. Drain all of the air reservoirs. Refer to Air Brake Reservoir Draining.

    3. Note: Tag and label the air lines for later installation.

  3. Remove the air lines from the park control valve (cab mounted). Refer to Hose and Line Replacement - Nylon Push-In Type Fitting.
  4. Remove the pin.
  5. Remove the knob.
  6. Remove the park control valve (cab mounted) bolt/screw.
  7. Remove the park control valve (cab mounted).
  8. Inspect the air lines for the following conditions:
    9. • Damage
    • Kinks
    • Wear
  9. Repair or replace the lines as necessary.

Installation Procedure

    Object Number: 894452 Size: SH
  1. Install the park control valve (cab mounted).

    2. Caution: Refer to Fastener Caution in the Preface section.

  2. Install the park control valve (cab mounted) bolt/screw.

    3. Tighten
    Tighten the park control valve (cab mounted) bolt/screw to 3 N·m (30 lb in).

  3. Install the knob.
  4. Install the pin.
  5. Install the air lines to the park control valve (cab mounted).
  6. Perform the air leakage test. Refer to Air Brake Park Control Valve Leakage Test.
  7. Perform the operational test. Refer to Parking Control Valve Operational Check.
  8. Remove the wheel blocks.