9.6. Replacement of the vacuum amplifier of brakes

The vacuum amplifier of brakes represents the difficult hardly sorted design. For its adjustment and repair the qualified personnel and the special equipment are required. Besides, the amplifier represents the device which is directly influencing traffic safety, its low-quality repair can lead to serious consequences therefore at malfunction replace the amplifier assembled. Ways of check of efficiency of the vacuum amplifier of brakes are described in section 4 "Maintenance" (see. "Check of operation of the vacuum amplifier of brakes").
It will be required to you: keys "on 8", "on 17", "on 19", a face head "on 17", passatizh, the screw-driver with a flat edge.
1. Rasshplintuyte …
2. … also take a finger from openings of a fork of a pusher of the vacuum amplifier and lever of a pedal.
3. Turn off two nuts of fastening of an arm of the vacuum amplifier located behind pedals.
4. Remove the main brake cylinder (see. "Replacement of the main brake cylinder").

Good advice
The main brake cylinder can be not removed completely, it is enough to disconnect of it from the vacuum amplifier of brakes and to take away forward, without disconnecting from it pipelines.

5. Remove a washer.
6. Weaken a collar inhaling …
7. … shift a collar on a hose …
8. … also remove a hose from the union of the backpressure valve.
9. In a motor compartment turn out two bolts of fastening …
10. … also remove the vacuum amplifier assembled with an arm.
11. Turn off four nuts …
12. … also remove an arm of the vacuum amplifier.
13. Remove a wire collar …
14. … and rubber protective cover.

For adjustment it is optional to remove a protective cover, it is possible to squeeze it, having provided access to adjusting elements.

15. Holding a pusher fork from a provorachivaniye, weaken a lock-nut inhaling.

The distance from the case of the vacuum amplifier to the center of an opening of a fork has to make (135,5±0,8) mm.

16. Rotation of a fork adjust pusher length, holding a pusher from a provorachivaniye a key.
17. Holding a rod from a provorachivaniye, adjust an emphasis thus …
18. … that its vystupaniye made 8–0,22 mm of the case of the vacuum amplifier.
19. Establish details as it should be, the return to removal.
20. Remove air from a system hydraulic actuator (see. "Pumping of a hydraulic actuator of the brake system"), if removed the main brake cylinder.