The service brake system is designed to reduce the speed of the vehicle, up to its complete stop and to hold the vehicle stationary for a short time.
The working brake system is dual-circuit, diagonal, with hydraulic drive, consists of a smooth brake cylinder with a vacuum booster, four wheel brake mechanisms and a fluid pressure regulator in the rear brake mechanisms. The front wheel brakes are disc brakes, non-ventilated, and the rear wheel brakes are drum brakes.
Each of the vehicle's contours includes brake mechanisms for two wheels: one front and one rear, located diagonally on the vehicle. One circuit includes the brake mechanisms of the front right and rear left wheels, and the second circuit includes the brake mechanisms of the front left and rear right wheels. If one of the circuits fails, the second circuit, although less efficient, will ensure that the vehicle stops.
The fluid pressure regulator limits the flow of fluid to the rear brakes when the load on the rear axle is insufficient, thereby preventing the rear wheels from locking and the rear axle of the car from skidding during sudden braking. The regulator body has a control hole, closed with a plastic plug. If fluid leaks from this hole, it indicates that the regulator rings are not tight.
To reduce the force applied by the driver to the brake pedal, a vacuum booster is installed in the brake system drive, which operates due to the vacuum created in the intake manifold of the 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 main brake cylinder. The reservoir cap has a built-in brake fluid level sensor. When the fluid level in the tank drops dangerously, the sensor turns on the control lamp on the instrument panel.
Note: Some vehicles are equipped with ABS braking system (anti-lock braking system).
Service brake system:
1 - front left wheel brake mechanism;
2, 6, 12, 17 - brake hoses;
3, 7, 11, 18 - brake pipes;
4 - master brake cylinder;
5 - front right wheel brake mechanism;
8 - master brake cylinder reservoir;
9 - vacuum booster;
10 - brake pedal;
13 - rear right wheel brake mechanism;
14 - fluid pressure regulator in the rear wheel brake mechanisms;
15 - lever of the fluid pressure regulator in the brake mechanisms of the rear wheels;
16 - rear left wheel brake mechanism.
Note: Some vehicles are equipped with ABS braking system (anti-lock braking system).