ZF - Model 691 - Brake Lock Systems - Brochure

691 Brake Lock Sytems automates hydraulic braking pressure in the service brakes to supplement the vehicle`s mechanical parking brake and provide extra holding in heavy-duty and high-frequency applications. The 691 Brake Lock significantly enhances vehicle holding capability while not interfering with normal service brake function. The ZF 691 Brake Lock can be interlocked with other vehicle components/systems such as a power takeoff control, bus door or wheelchair lift to insure the brakes are locked whenever those components/systems are being utilized.