4-3-21-proverka-raboty-vakuumnogo-usilitelya-tormozov.html
4.3.21. Check of operation of the vacuum amplifier of brakesAt failure of the vacuum amplifier the effort to brake pedals considerably increases that negatively affects driving.
If the effort to pedals when braking considerably increased in comparison with usual, check the amplifier of brakes on the motionless car.
It will be required to you: keys "on 17", "on 19", passatizh, a rubber pear.
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1. At the idle engine press five-six times a brake pedal. Holding a brake pedal in the pressed situation, launch the engine. The pedal of a brake has to move forward. If it did not occur, check...
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2.... density of landing of a vacuum hose on unions of an inlet pipe...
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3.... and vacuum amplifier.
NOTE
Weakening of fastenings and damage of details is not allowed. Tighten the weakened fastenings, replace the damaged details.
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4. For check of the backpressure valve remove a vacuum hose assembled.
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5. Squeeze passatizham the unbent short moustaches of a collar of fastening of a hose to the union of the vacuum amplifier and shift a collar on a hose.
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6. Remove a hose from the union of the vacuum amplifier.
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7. Similarly disconnect the second end of a vacuum hose from the union of an inlet pipe and remove a hose assembled with the backpressure valve.
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8. Densely insert a pear nose into that end of a vacuum hose by which the hose was connected to the vacuum amplifier, and squeeze it. Air has to come out a pear via the valve.
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9. Release a pear. If it remained in the compressed state, so the valve is serviceable. Otherwise replace the valve. In the absence of a pear it is possible to blow the valve a mouth.
10. If the backpressure valve passes air in both directions, replace a vacuum hose assembled with the valve.
11. Establish details as it should be, the return to removal.
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