Hummer H2. Manual — part 841
Fig. 50: Park Brake Actuator & Rubber Boot
Courtesy of GENERAL MOTORS CORP.
7. Remove the actuator (2) and rubber boot (1).
Installation Procedure
2004 Hummer H2
2004 BRAKES Park Brake - Hummer H2
Fig. 51: Park Brake Actuator & Rubber Boot
Courtesy of GENERAL MOTORS CORP.
1. Install the rubber boot (1) and the actuator (2).
2. Install the park brake shoe. Refer to Park Brake Shoe Replacement .
3. Install the axle shaft. Refer to Rear Axle Shaft Replacement in Rear Drive Axle.
4. Adjust the park brake shoe. Refer to Park Brake Adjustment .
5. Install the rotor. Refer to Brake Rotor Replacement - Rear in Disc Brakes.
6. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and
Wheels.
7. Remove the safety stands.
8. Lower vehicle.
9. Enable the park brake cable automatic adjuster. Refer to Enabling the Park Brake Cable Automatic
Adjuster in Park Brake.
PARK BRAKE ADJUSTMENT
CAUTION: Refer to Brake Dust Caution in Cautions and Notices.
2004 Hummer H2
2004 BRAKES Park Brake - Hummer H2
Tools Required
J 21177-A Drum-to-Brake Shoe Clearance Gauge. See Special Tools and Equipment .
Park Brake Shoe Adjustment
Fig. 52: Applying J 21177-A To Inside Of Brake Drum
Courtesy of GENERAL MOTORS CORP.
1. Set the J 21177-A so that it contacts the inside diameter of the rotor (1). See Special Tools and
IMPORTANT: The park brake shoes must be adjusted before the park brake pedal is
adjusted.
2004 Hummer H2
2004 BRAKES Park Brake - Hummer H2
Equipment .
Fig. 53: Adjusting Parking Brake Shoes Using J 21177-A
Courtesy of GENERAL MOTORS CORP.
2. Position the J 21177-A over the shoe (1) and the lining at the widest point. See Special Tools and
Equipment .
3. Turn the adjuster nut until the lining just contacts the J 21177-A . See Special Tools and Equipment .
4. Repeat steps 1-3 for the opposite side.
5. The clearance between the park brake shoe and the rotor is 0.6604 mm (0.026 in).
Park Brake Pedal Adjustment
2004 Hummer H2
2004 BRAKES Park Brake - Hummer H2
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