This wedge is a locating or clamping component within the brake system of a forage harvester or combine. It sits between the brake shoe and the actuating mechanism, transmitting force to press the shoe against the drum. Wear on the wedge face reduces braking force and increases pedal travel before engagement. The manufacturer machines the wedge to the original profile so that it maintains the correct contact angle with the cam or piston, preserving the brake's self-energizing action. On installation, ensure the wedge slides freely in its guide and that the mating surfaces are clean.