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12-8-proverka-sostoyaniya-snyatie-i-ustanovka-vakuumnogo-usilitelya-tormozov.html
12.8. Condition check, removal and installation of the vacuum amplifier of brakes
Components of assembly of a pusher of the typical vacuum amplifier
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1 — the Protective cover
2 — the Holder
3 — the Shock-absorber
4 — the Air filter |
Work check
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- At the switched-off engine squeeze out several times a brake pedal, its course is not stabilized yet.
- Squeeze out a pedal and hold it, then start the engine. If the pedal thus slightly fell, means, everything is normal.
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Tightness check
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- Start the engine, and in one-two minutes switch off it. Slowly squeeze out a brake pedal several times. If for the first time the pedal leaves far down, and then, by the second and third pressing, gradually rises, means, the vacuum amplifier is tight.
- Squeeze out a brake pedal at the working engine, then stop the engine, without releasing a pedal. If after pedal deduction in the squeezed-out situation within 30 seconds its course did not change, means, the vacuum amplifier is tight.
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Removal and installation
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- Dismantle of the vacuum amplifier demands special tools and cannot be made by the house mechanic. If the arisen problem continues you to disturb, it is recommended to replace the block completely.
- Remove the main cylinder as it is described in the Section Removal and installation of the main brake cylinder.
- Disconnect a vacuum hose from the vacuum amplifier of brakes.
- Working in a passenger compartment, take a ware box and lower covering panels on the left side.
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- Remove a collar and a fork pin to disconnect a pusher from the lever of a cross-section shaft (for models with right-hand management) or brake pedals (for models with left foreign management). On models with left foreign management also disconnect a returnable spring of a pedal of a brake.
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- Give four fixing nuts and take the block of the vacuum amplifier from an impellent compartment.
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- Survey the small filter in a protective cover on a pusher. If it is littered, it can influence operation of the vacuum amplifier. For cleaning of the filter wash out it in soft soap solution. If it nevertheless is not cleared, replace it.
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Installation repeats removal procedure upside-down. Tighten fixing nuts of the vacuum amplifier of brakes with demanded effort. Before establishing a protective cover on the air filter of a pusher of the amplifier, make sure that notches on the filter are located under 180 degrees to notches on the shock-absorber.
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On models with right-hand management the pedal of a brake is on the right side of the car and incorporates to the left side by means of a cross-section shaft. Adjustment is made on a pusher on the left side, but the given size is measured on a pedal on the right side. |
- Adjust height of a pedal of a brake and the stoplight switch (see. Section Adjustment of a pedal of a brake).
- Establish the main cylinder (see. The section Removal and installation of the main brake cylinder) also attach the vacuum pump.
- Carefully check work of brakes before the beginning of normal operation of the car.
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