|
10-3-proverka-ispravnosti-funkcionirovaniya-vakuumnogo-usilitelya-tormozov.html
10.3. Check of serviceability of functioning of the vacuum amplifier of brakesCheck of serviceability of functioning of the vacuum amplifier of brakes
|
|
- Connect the vacuum gage (030) to the brake amplifier, then in several pressing a pedal of a foot brake dump depression in a vacuum path.
- Connect a tester (051) to the service union, or to a support of the brake mechanism.
- To a pedal of a foot brake connect a measuring instrument (060).
- Start the engine and a sharp otpuskaniye of the squeezed-out pedal of gas create in a vacuum path demanded depression (0.60 ÷ 0.80 atm).
- If depression falls at once, or its depth is insufficient, it is necessary to check a condition of the sealing ring established between the servo-driver of the vacuum amplifier and GTTs, the probability of failure of the control valve in the vacuum line is not excluded also. Estimate a condition of the transient valve, and also lines and a vacuum receiver of a drive of blocking of differentials. On diesel models make sure of serviceability of functioning of the vacuum pump. Replace the failed components.
- Squeezing out a pedal with demanded efforts, consider the tester indication. Compare results of measurements to requirements of Specifications.
- Disconnect a measuring instrument (060), a tester (051) and the vacuum gage (030).
- Pump over brake system (see. Section Pumping of brake system).
|
|
The contour of the brake mechanism of the corresponding wheel needs pumping only. |
|
|
|
|