The pressure in both braking circuits is created in the master brake cylinder by pressing the brake pedal. To reduce the effort when pressing the brake pedal and more efficient operation of the system, a vacuum booster is used. The vacuum brake booster works by vacuum generated in the intake manifold of a gasoline engine or by a special vacuum pump for diesel engines. Under normal operating conditions, both circuits operate synchronously.
If one of the circuits fails, for example, due to its depressurization and leakage of brake fluid, the second braking circuit operates with some loss of efficiency in terms of braking time and braking distance. The working brake system includes a brake pedal, a signal device, a brake master cylinder, a vacuum-type brake booster, ATE disc-type brakes with a floating caliper on the front and rear wheels, pipelines, hoses and an anti-lock system (ABS) by Teves. When installing the ABS system, the brake pressure regulator is removed from the vehicle.
The parking brake is actuated by a manual actuating lever through actuating cables to the brake shoes in the rear wheel mechanism. The main brake cylinder is screwed to the front of the brake booster and serves to simultaneously pressurize both hydraulic brake circuits when the brake pedal is pressed.
Above the main brake cylinder is a compensation tank that provides the system with brake fluid.
Ventilated brake discs are installed on the front wheels of the car, and solid brake discs on the rear wheels.
In a floating caliper brake, the brake pads are pressed against the disc by a single piston.
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