10.5. Removal, check and installation of the amplifier of brakes
Components of installation of the vacuum amplifier of brakes
Check
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- Squeeze out a pedal of a working brake several times at the switched-off engine and make sure that the course of a pedal does not change.
- Squeeze out a pedal of a brake and start the engine. If the pedal slowly falls, the vacuum amplifier is serviceable.
- Start the engine and muffle it through 1÷2 minute. Slowly squeeze out a brake pedal several times. If the pedal is deeply pressed the first time, and in the second or third attempt its course gradually decreases, the amplifier is tight.
- At the working engine squeeze out a pedal of a brake and, without releasing it, kill the engine. In confirmation of tightness of the vacuum amplifier the pedal should not change the course in 30 seconds of its keeping.
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Removal
Installation
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- Establish the amplifier with new laying.
- Establish a bracket on a rod of the amplifier.
- Tighten nuts of fastening of the amplifier with effort of 13 Nanometers.
- Insert a pin into a bracket and a pedal of a working brake and record it the forelock.
- Establish a returnable spring of a pedal of a brake.
- Establish new laying on GTTs.
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- Install special adaptation on laying and lower adaptation core until a contact with the piston.
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- Remove special adaptation from GTTs and establish on the amplifier.
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- Measure a gap between a rod of the amplifier and a core of special adaptation, - it has to make 0 mm.
- Adjust a ledge of a rod of the amplifier so that his end slightly concerned a core of special adaptation.
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You make adjustment in the absence of the negative pressure attached to the amplifier (for this purpose at the killed engine several times squeeze out a brake pedal to level pressure in the amplifier with atmospheric pressure). |
- Establish GTTs, connect a vacuum hose to the amplifier, record brake lines in the holder.
- Fill the tank with brake fluid, pump over the brake system and check it for leaks.
- Adjust a pedal of a working brake (see the Section Check and adjustment of the course of pedals of the working and parking brake). Make a trial trip.
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