Failsafe brake servo device - has tandem piston by=passed to allow brake control valve to operate

摘要

The servo assisted hydraulic brake circuit also supplies a variety of hydraulic servo systems and is controlled by a tandem master brake piston linked to the hydraulic servo. The brake piston can be bypassed with the servo acting as a hydraulic control valve to ensure a supply to the brakes and other hydraulic circuits. The system uses a single hydraulic pump supply with safety interlocks to provide braking even when part of the brake control circuit fails.