Hydro-Boost

Fig. 1 Sectional view of typical Bendix Hydro-Boost unit:

Fig. 2 Typical Hydro-Boost unit disassembled:

The Hydro-Boost system provides an additional cylinder in the brake system. This cylinder contains no brake fluid. The Hydro-Boost cylinder is hydraulically operated, by pressurized fluid from the power steering pump, providing power assist to operate a dual master cylinder brake system.

The booster is composed of two sections; the linkage section and the power section.

The booster is designed so that if a total absence of power assist occurs, the brakes can be applied manually, but somewhat greater pressure on the brake pedal is required.