POWER BRAKE UNIT CONSTRUCTION/OPERATION

BUE041143800N01

• The brake booster consists of the following parts:

- Power brake unit

- Vacuum hose

- Check valve

• The power brake booster reduces the effort required to push the brake pedal to actuate the brakes.

• The vacuum hose supplies vacuum to the power brake unit.

• The check valve closes when the engine is turned off and traps engine vacuum in the power brake unit.