Attention: when working on the brake system, avoid getting brake fluid on the skin and paintwork.
1. Remove the vacuum from the brake booster. To do this, with the engine off, press the brake pedal several times when the pedal becomes hard - the vacuum is removed.
2. Remove expansion tank (8) from bracket (14), but do not disconnect it from the brake master cylinder.
3. Disconnect pressure pipes (6) from GHZ. To avoid getting dirt on the working surface of the cylinder, close the holes in the GTZ body with plugs.
4. Loosen the nuts (5) and remove the GTS (4), by pulling it towards the front of the car. When installing, replace the O-ring (2).
5. Disconnect the expansion tank (8) from GTZ (4).
6. Installation is carried out in the reverse order, after installation it is necessary to bleed the hydraulic system of brakes and clutch (see «Maintenance»).