Check of the vacuum amplifier of brakes. KIA Magentis/Optima (since 2000 of release)
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
 










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12.4. Check of the vacuum amplifier of brakes

For simple check of the vacuum amplifier of brakes execute the following tests.

 PERFORMANCE ORDER

1. Start the engine and in 1–2 minutes stop it. Press a brake pedal with usual effort. If the first course of a pedal a long and second course is shorter, than the first course is testifies to normal operation of the vacuum amplifier of brakes.

2. At the switched-off engine several times press a brake pedal. Start the engine. If the pedal of a brake moves down at once after engine start, it testifies to normal operation of the vacuum amplifier of brakes.

3. Start the engine. Press a brake pedal with usual effort. Stop the engine. Slowly press a pedal of a brake and hold it pressed during 30 pages. If the height of a pedal does not change, the vacuum amplifier of brakes works normally. Otherwise, check the unilateral vacuum valve or a vacuum hose on absence of damages and check reliability of their fastenings.


«on a step back
12.3. Check and adjustment of provision of a pedal of a brake
on the following page»
12.5. Pumping of hydraulic system of a drive of brakes