Magentis and Optima repair since 2000 of release
1. Engines
2. Greasing system
3. Cooling system
4. Control and decrease in toxicity
5. Fuel system
6. Ignition system
7. Coupling
8. Transmission
9. Power shafts, axes
10. Suspension bracket
11. Steering
12. Brake system
12.1. Specifications
12.2. Anti-blocking system of brakes
12.3. Check and adjustment of provision of a pedal of a brake
12.4. Check of the vacuum amplifier of brakes
12.5. Pumping of hydraulic system of a drive of brakes
12.6. Pumping of hydraulic system of a drive of brakes with scanner use
12.7. Adjustment of a course of the parking brake
12.8. Brake pedal
12.9. Main brake cylinder
12.10. Vacuum amplifier of brakes
12.11. Brake tubes and hoses
12.12. Pressure regulator
12.13. Replacement of forward brake shoes
12.14. Support of a forward brake
12.15. Back drum-type brakes
12.16. Replacement of the working brake cylinder
12.17. Back disk brakes
12.18. Support
12.19. Hydraulic HECU block (the hydraulic and electronic control device)
12.20. Sensor of frequency of rotation of a wheel
12.21. Parking brake
12.22. Search and elimination of malfunctions
13. Body
14. Central air
15. Electric equipment
16. Electric circuits


12.12. Pressure regulator

Do not remove a pressure regulator. The regulator of pressure regulates pressure in a drive of brake mechanisms of back wheels depending on load of a back axis of the car. With increase in loading it provides passing of brake liquid to wheel cylinders of back brakes from what pressure in their contour raises and overall performance of back brake mechanisms improves.

Check of function of restriction of pressure


1. Connect two manometers, one – on the entrance party and one – on the party of an exit of a regulator of pressure.

After connection of manometers remove air from brake system.

2. Press a pedal of a brake and measure entrance and target pressure. If pressure are in limits of admissible amplitudes, as is shown in drawing, the regulator of pressure is serviceable.

3. Remove manometers and connect tubes of brake system in initial situation and remove air from brake system.

On graphics the characteristic of a regulator of pressure depending on enclosed effort is shown.

«on a step back
12.11. Brake tubes and hoses
on the following page»
12.13. Replacement of forward brake shoes