Brakes (Drum brake): Description and operation

Drum brake

1 Drum 2 Drum securing bolt 3 Backplate 4 Cable 5 Backplate securing bolt

The drum brake consists of a backplate attached to the transfer box casing and a drum attached to the transfer box rear output shaft. When the handbrake lever is applied, the movement is transmitted by the inner cable to a lever on one of the brake shoes on the backplate. The lever pivots against the brake adjuster rod, which forces the shoes apart and into contact with the drum. Brake shoe to drum clearance is set by an adjusting bolt on the rear of the backplate.