Model 1990 2309 cm3 is equipped with a hydraulic booster instead of vacuum. The system uses pressure from the power steering system.
The gas-filled accumulator maintains a reserve of pressure and includes an unloader and a one-way valve. Pressurized fluid is taken from the accumulator to the booster unit.
The hydraulic booster block is located between the brake pedal and the master cylinder. Each component runs on a completely separate hydraulic conduit, and is provided with separate feed tanks.
The procedure for removing and installing the pump is given in Section 10.
Visitor comments