Working brake system: 1 - brake mechanism of the front left wheel; 2, 6, 12, 17 - brake hoses; 3, 7, 11, 18 - brake pipes; 4 - main brake cylinder; 5 - brake mechanism of the front right wheel; 8 - reservoir of the main brake cylinder; 9 - vacuum amplifier; 10 - brake pedal; 13 - brake mechanism of the rear right wheel; 14 - fluid pressure regulator in the brake mechanisms of the rear wheels; 15 - lever of the fluid pressure regulator in the brake mechanisms of the rear wheels; 16 - brake mechanism of the rear left wheel.
The car is equipped with two brake systems - working and parking.
The service brake system is designed to reduce the speed of the vehicle, up to its complete stop and briefly hold the vehicle in a stationary state.
The working brake system is double-circuit, diagonal, with a hydraulic drive, consists of a master brake cylinder with a vacuum booster, four wheel brakes and a fluid pressure regulator in the rear brakes. The brake mechanisms of the front wheels are disc. ventilated, rear - drum.
Each of the contours of the car includes the brake mechanisms of two wheels: one front and one rear, located diagonally on the car. One circuit includes the brakes of the front right and rear left wheels, and the second circuit includes the brakes of the front left and rear right wheels. If one of the circuits fails, the second circuit, albeit with less efficiency, will ensure the car stops.
The fluid pressure regulator limits fluid flow to the rear brakes when the rear axle is underloaded. thereby preventing the rear wheels from locking up and the rear axle of the car skidding during heavy braking. The regulator housing has a control hole closed with a plastic plug. Leakage of fluid from this hole indicates that the regulator rings are not tight.
To reduce the effort applied by the driver to the brake pedal, a vacuum booster is installed in the brake system drive, which operates due to the vacuum formed in the inlet pipeline of a running engine.
Warning! Do not turn off the engine until the vehicle has come to a complete stop.
A reservoir with brake fluid is installed on the body of the master brake cylinder. A low brake fluid level sensor is built into the reservoir cap. In the event of a dangerous drop in the liquid level in the tank, the sensor turns on a warning lamp on the instrument panel.
Note. Some vehicles are equipped with an ABS brake system (anti-lock system).