Brake > Brake System Service > Air Brake Spring Brake

Also known as: Air Brake Spring Brake Actuator, Air Spring Brake, Air Spring Brake Actuator. A braking system that is typically found on the rear axles of a vehicle with hand-brake function, used in addition to the primary brakes of an air brake vehicle, which used as an emergency / parking brake in the event of an emergency when loosing primary circuit air supply.