Drum Brake System: Adjustments

Brake Component Views:

1. Raise vehicle and suitably support.
2. Mark relationship of wheel to wheel studs in bearing flange.
3. Rear wheels and tires.
4. Mark relationship of drum to wheel studs in bearing flange.
5. Brake drum.
6. Make sure lever stops on both park brake levers are against edges of shoe webs on park brake shoes. If park brake cable is holding stops off edge of shoe web, loosen park brake cable adjustment.
7. Measure the inside diameter (ID) of the drum using J 21177-A or J 22364-01.
8. Turning star wheel on adjusting screw assembly, adjust shoe and lining diameter to be 1.27mm (0.050 inch) less than the drum ID.
9. Install drum and wheel, aligning marks made at removal.
10. Repeat steps 2 through 9 to adjust the other rear brake position.
11. Torque wheel nuts Tighten 140 Nm (100 inch lbs.).
12. Lower vehicle.
13. Apply and release service brake pedal 30 to 35 times with normal pedal force. Pause about one second between pedal applications.