Drum Brake System: Adjustments

REMOVAL PROCEDURE
^ Tools Required
- J 21177-A Drum to Brake Shoe Clearance Gage

1. Raise and suitably support the vehicle.
2. Remove the tires and the wheels.
3. Remove the brake drums.
4. Ensure the stops on both of the parking brake levers are against the edges of the webs on the brake shoes. If the parking brake cable is holding the stops off the edge of the shoe webs, loosen the parking brake cable adjustment.
5. Use a J21177-A in order to measure the drum inside diameter.
6. Adjust the turning star wheel on the adjusting screw. Adjust the shoe and lining diameter to 1.27 mm (0.05 inch) less than the drum inside diameter at each wheel.


INSTALLATION PROCEDURE
1. Install the brake drums.
2. Install the tires and the wheels.
3. Apply and release the brake pedal 30 to 35 times with a one second pause between each brake application.
4. Inspect for brake drag and improper parking brake function.
5. Lower the vehicle.