Master brake cylinder and vacuum booster: 1 - main brake cylinder; 2 - tank of the main cylinder; 3 - cork; 4 - sealing rings; 5 - emergency brake fluid level sensor; 6 - circuit drive piston «right front - left rear brakes»; 7 - circuit drive piston «left front - right rear brakes»; 8 - support ring; 9 - spring; 10 - retaining ring; 11 - amplifier case; 12 - piston rod; 13 - spring; 14 - piston; 15 - valve body; 16 - diaphragm; 17 - valve stem; 18 - cover; 19 - protective cover.