Audi 80/Avant
+ The description
+ Engines
+ System of release of the fulfilled gases
+ Cooling system
+ Fuel tank and the fuel pump
+ The air filter and воздухозаборные channels
+ Injection system
+ Coupling
+ Transmission and transmission
+ Suspension bracket and steering
- Brake system
Check of brake mechanisms
Brake liquid
Check of level of a brake liquid
Check of tightness of brake system
Replacement of a brake liquid
Disk brake mechanisms
Measurement of a thickness колодок the disk mechanism
The control of a condition of brake disks
Replacement колодок disk brake mechanisms
The drum-type brake mechanism
Measurement brake колодок the drum-type mechanism
Check of a course of a pedal of a brake
The disk brake mechanism of back wheels
Measurement of a thickness колодок back disk brakes
Check of a free wheeling of the lever of a lay brake
The main brake cylinder
The amplifier of brakes
Check of the amplifier of brakes
Regulator of brake forces
Repair of a hydraulic drive of brakes
Prorolling of brake system
The list of malfunctions
+ Antiblocking system of brakes
+ Wheels and tyres
+ Kuzovnaja electrosystem
+ Ignition system
+ Illumination
+ Signalling devices
+ Devices and auxiliary devices
+ Heating and ventilation
+ Body elements
+ Search of malfunctions
+ Specifications
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Check of a course of a pedal of a brake
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- Press a pedal of a brake a hand.
- The free wheeling should make a maximum 1/3 from the general course of a pedal.
- Longer free wheeling of a pedal says that brake Pads have worn out till the minimum thickness and should be replaced.
- Too long course of a pedal can be caused and jammed brake колодками or приржавевшим a support of the brake mechanism.
- Probably, air has got to brake system.
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Removal of a brake drum At the removed brake drum in the brake mechanism of a back wheel we see following elements
The brake drum can be removed and without removing a wheel. In this case:
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- To turn out one wheel bolt.
- To raise the car behind.
- To turn a wheel disk or a brake drum so that an aperture for a bolt it has appeared in front above on a car course.
- Through an aperture for a bolt to wring out an adjusting wedge upwards – thereby are wrung out brake Pads.
- To remove корончатый a wheel cap (the head the Suspension bracket and a steering).
- To unbend and take out safety шплинт in the bearing of a nave of a wheel.
- To remove корончатый a clamp, to turn on шестигранную a nut, to remove a persistent washer and the external bearing of a wheel.
- To remove a brake drum.
- At installation to adjust люфт the bearing of a nave of a wheel (the Suspension bracket and a steering see the head).
- To bring Pads to a brake drum by disposable strong pressing a brake pedal.
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The help: if at the old car it is impossible to wring out upward rusted adjusting wedge, ask the assistant to press a brake pedal – while you will wring out a wedge. Then it is necessary to release a pedal of a brake and only now to take out a screw-driver from an aperture, differently the wedge again will fall downwards. Watch that pressing a pedal was made only if both brake drums are established. |
Check of a condition of brake drums
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- The rubbing surface in a drum should be whenever possible smooth.
- If deep furrows or scratches are visible (because of worn out to rivets brake колодок), the drum can be chiseled.
- Internal diameter of new brake drums makes 230 mm.
- After расточки internal diameter should not be more than 231 mm, otherwise it is necessary to replace both brake drums.
- It is necessary to apply thicker to the chiseled brake drums Pads.
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Removal of the cylinder of the drum-type brake mechanism Parts of the removed drum-type brake mechanism. Arrows show, where it is necessary to hang springs.
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- To remove a brake drum.
- To remove brake Pads.
- To turn out the prorolling valve.
- To disconnect a brake hose. If you are not going to establish at once the new brake cylinder it is necessary to squeeze out a pedal of a brake and to leave it in this position, to prevent unnecessary loss of a brake liquid.
- To take out two fixing bolts behind on a guard of the drum-type brake mechanism and to remove the brake cylinder.
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Removal brake колодок
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- To remove a brake drum.
- To wring out пассатижами a spring plate of the holder brake колодок, to turn on 90 ° (holding a fixing pin behind at a guard that it did not rotate together with a guard) and to remove them, then to remove springs.
- To unhook a returnable spring of an adjusting wedge.
- To separate brake колодку from the bottom support and the piston of the brake cylinder.
- To extend an adjusting wedge from a press bar.
- To fasten the basic spring to a press bar and brake колодке. As it is necessary to establish a spring, it is shown in drawings.
- To establish brake колодку on a press bar, to insert from above an adjusting wedge. Its ledge is directed towards brake Pads.
- To establish the brake lever passive Pads in a ledge of a press bar, to fasten the top returnable spring.
- To hang a cable of a drive of a lay brake at yet not fixed brake колодках on the lever of inclusion of a lay brake.
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On the main page
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