Withdrawal
1. Disconnect brake pipes from the main brake cylinder.
2. Remove the main brake cylinder. Tightening torque: 8–12 Nm.
3. Disconnect the vacuum hose from the vacuum brake booster.
4. In the passenger compartment, remove the spring cotter pin, and remove the pin with a head and a hole for the cotter pin.
5. Turn away four nuts of fastening of the vacuum amplifier of brakes.
6. Remove the vacuum brake booster.
Installation
1. When installing the vacuum brake booster, remove the transport packaging from both sides of the booster.
2. Install the vacuum brake booster with a new gasket on the bulkhead of the engine compartment and secure with four nuts. Tightening torque: 13–16 Nm.
3. Apply a layer of lubricant to the mounting hole in the brake pedal.
4. Connect the rod to the brake pedal and install the pin with the head and the hole for the cotter pin and secure it with a new spring cotter pin.
5. Establish the main brake cylinder on the vacuum amplifier of brakes and fix nuts. Connect the brake pipes and tighten the connecting nuts of the pipes.
6. Connect the vacuum hose from the engine compartment to the vacuum brake booster.
7. Fill the reservoir of the brake system with brake fluid. Bleed the air from the hydraulic circuit of the brake system.
8. Check for brake fluid leaks.
9. Check and, if necessary, adjust the pedal installation height and brake pedal free play.
10. After installation, apply grease to the contact points of the brake and traction pedals.