Removing
To remove the clutch pedal, perform the following steps in sequence.
1. Drain the brake fluid.
Pic. 14.13. Brake Master Cylinder and Vacuum Brake Booster: 1 - connecting nut (15 Nm); 2 - nut (25 Nm); 3 - connection of pipes of the brake system (15 Nm); 4 – a socket of the gauge of level of a brake liquid; 5 – the main brake cylinder in gathering; 6 - connecting tube (15–18 Nm); 7 - vacuum hose (together with built-in non-return valve); 8 - pin; 9 - washer; 10 - gasket; 11 - latch; 12 - vacuum brake booster; 13 – an arm of a regulator of pressure of back brakes
2. Disconnect from the main brake cylinder tube 3 (pic. 14.13) braking system.
3. Disconnect a socket 4 gauges of level of a brake liquid.
4. Turn away nuts and remove an arm 13 of a regulator of pressure of back brakes.
5. Remove the main brake cylinder 5 as an assembly.
6. Remove the vacuum hose (together with built-in non-return valve)
7. Remove connecting tube 6.
8. Remove the spring retainer 11.
9. Remove washer 9.
10. Remove pin 8.
11. Turn away 4 nuts and remove the vacuum amplifier of brakes 12.
12. Remove gasket 10.
Installation
Installation is carried out in the reverse order of removal, taking into account the following.
1. When installing the brake master cylinder assembly, adjust the gap between the brake booster pushrod and the primary piston.
Pic. 14.14. Measuring the gap between the brake booster tappet and the primary piston: a - measurement of size A; b - measurement of dimensions B, C and D; 1 - measuring bar
Gap A (pic. 14.14) defined as the difference in dimensions B, C and D: A = B–C–D. The nominal gap is 0.6–0.8 mm.
Pic. 14.15. Changing the length of the pusher by turning the adjusting screw of the pusher
2. If the measured value of the gap does not correspond to the nominal value, adjust it by changing the length of the pusher by turning the adjusting screw of the pusher (pic. 14.15).
3. Put the vacuum hose all the way into the hexagon of the connecting tube on the engine intake manifold and secure the hose with a clamp.
4. Fill in the brake fluid.
5. Remove air from the hydraulic drive of the brake system.
6. Adjust the position of the brake pedal.