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


12.16. Replacement of the working brake cylinder


1. Remove brake shoes.
2. Disconnect a brake tube.

3. Turn out bolts and remove the working brake cylinder.

4. Remove dustproof covers from the working brake cylinder.
5. Remove the piston.

6. Get a returnable spring.

7. Before assembly of the working brake cylinder check a condition of the following details:

    The cylinder and the piston on lack of wear, damages and a rust.
    Piston gap in the cylinder: 0,039–0,089 mm The case of the working brake cylinder on absence of damages and cracks. Contact surface of the piston and brake shoes on lack of wear. Check the piston on lack of internal porosity.

8. Assembly is carried out in sequence, return dismantling.

    Before assembly clear the working brake cylinder isopropyl alcohol. Before assembly grease with brake liquid the piston and the cylinder. At assembly it is necessary to use new cuffs and dustproof covers.

Be careful not to lose a steel ball of the drainage valve.

«on a step back
12.15. Back drum-type brakes
on the following page»
12.17. Back disk brakes