C 2500 3/4 Ton Pickup 2WD V8-350 5.7L VIN M 4-bbl (1984)
Hydraulic Brake Booster: Description and Operation
Fig. 1 Sectional view of typical Bendix Hydro-Boost unit
Fig. 2 Typical Hydro-Boost unit disassembled
The Hydro-Boost system, Figs. 1 and 2, 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.
