Opel Frontera

Since 1992 of release

Repair and car operation

Opel of Frontera
+ Cars of mark Opel Frontera
+ Current leaving and service
+ The engine
+ Cooling and heating systems
+ The power supply system and release
+ Engine electric equipment
+ Coupling
+ Manual box of a gear change
+ Kardannye shaft, the main transfer
- Brake system
   Brake mechanisms of forward wheels
   The brake mechanism of back wheels
   Disk brakes of back wheels
   The main brake cylinder
   Removal of air from brake system
   The vacuum amplifier of a brake
   Lay brake
   Pressure regulator
   Brake hoses of forward and back brake mechanisms
   Antiblocking system (ABS)
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Controls and operation
+ Electric equipment schemes


The brake mechanism of back wheels



Here too it is necessary to mean that the material brake колодок contains asbestos.


1. Lift and establish on supports a back part of the car.
2. Turn away a nut and remove wheels.
3. Release a lay brake.
4. Turn on a screw-driver the screw of fastening of a brake drum and remove a drum. If the drum does not manage to be removed at once, squeeze out a stopper from an underside of a brake board, insert into an aperture a screw-driver before contact with the lever of a lay brake.
5. Press the lever, having rested it in brake колодку so that колодки have departed from a drum. Probably, it is required to separate a drive of a brake around the equalizer.
6. Clear a brake of a dirt (do not apply for this purpose the compressed air - see above). Brake drums if necessary can be ground.
7. The sizes of a drum are resulted in Specifications. The basic defect of a drum is an ovality of its working surface. In the presence of ovality it is excluded dense прилегание brake колодок that leads to decrease in efficiency of braking. Ovality is eliminated расточкой.


Before installation of drums it is necessary to check up ease of a course of the mechanism of adjustment. If it rotates with jamming, it is necessary to remove brake колодки, having provided access and possibility of check of the mechanism.

1. Smooth out a skin interfaced surfaces of drums (internal surfaces) and naves of wheels.
2. Establish drums into place and обстучите their rubber hammer so that it was possible to insert the screw.
3. Tighten the screw the moment of 4 Nanometers.
4. After installation of drums press 20 - 25 times a pedal of a brake for mechanism installation into position. Installation of the mechanism of adjustment is into position accompanied by click.
5. If the cable of a drive of a lay brake was disconnected from the equalizer, move the lever of a lay brake on two teeth and adjust cables on the equalizer so that brake колодки at проворачивании drums slightly concerned them.
6. After that release a brake and check up, that drums were freely turned.


Brake колодки are replaced in steam even if one of them outwardly has no defects. For possibility of definition of degree of deterioration brake колодок brake drums act in film in the way described above. The thickness of new brake overlays makes 5 mm, the minimum thickness is equal 1 mm.

1. Lift and establish on supports a back part of the car.
2. Turn away a nut and remove wheels.
3. Under forward wheels enclose an emphasis.
4. Remove brake drums.
5. Examine brakes and wipe their damp rag.
6. Press a finger from an underside on анкерные pins and compress flat-nose pliers a spring plate, as shown.
7. Press inside a plate and turn so that through a spring plate it was possible to spend a pin head.
8. Remove a spring plate, a spring and a pin. The described work is spent on both wheels. Removal of a spring (2) is shown on an illustration. Take out a pin (3) from an underside of a brake board.
9. Wring out to the centre a screw-driver the lever of a drive of a lay brake so that it was possible to disconnect a cable.
10. Unhook nippers one end of the top spring, as shown.
11. Wring out outside a screw-driver brake колодку, as shown - so that it was possible to take out the adjustment mechanism. Thus it is necessary to remove a vertical spring also. Watch to damaging a protective cap of the wheel cylinder.
12. Unhook the bottom coupling spring and remove both brake колодки. If полуось it is removed, this work is carried out without difficulties. In most cases полуось in these cases does not act in film. And then колодки are taken out through a nave and a brake board.
13. At once fix a rubber tape the piston of the wheel cylinder, having excluded possibility of its exit. Not to press at all a brake pedal, since. The piston can jump out.

As both are removed brake колодки, it is necessary to mark them not to confuse at installation.

1. Carefully clear details.
2. Check up a condition of caps of wheel cylinders. At detection of traces of a liquid on the wheel cylinder, last is under repair or replaced.
3. The deformed and weak springs replace, since they create non-uniform pressing brake колодок.
4. Carefully clear places of contact brake колодок with a brake board and grease with heat-resistant greasing.

New brake колодки can be with the established lever of a drive of a lay brake or without it. In the latter case the lever is necessary for rearranging from an old brake. Lever fastening can be carried out or by means of a finger with a lock ring, or клепкой. In the latter case it is necessary рассверлить a rivet.

1. Remove from the wheel cylinder a rubber ring, establish the first колодку and fix анкерным a pin and other details in sequence, return to removal.
2. Establish the mechanism of adjustment and the second колодку.
3. Enter into support the ends of both brake колодок and press inside the lever of a drive of a lay brake so that it was possible to hook for it on a cable.
4. After that displace the lever outside. The pin should be in the lever opposite to an edge brake колодок.
5. Flat-nose pliers establish the bottom coupling spring.
6. Hook on the top coupling spring. Pay attention to how the spring end from outside the adjustment mechanism is hooked.
7. Now it is possible to establish a brake drum. If it does not enter on brake колодку колодки it is possible to compress by means of an adjusting bar.
8. After installation of brake drums ask the assistant to press a brake pedal, listening to a brake. Click in a drum testifies to correct work of the adjusting mechanism.
9. Adjust a lay brake.

Brake колодки should be earned extra to a drum. Therefore in an operation initial stage it is not necessary to press a brake pedal sharply.

The wheel cylinder

For repair of the wheel cylinder there is a repair complete set. Compare details of the repair complete set to the removed details to exclude an error at assemblage.


1. Lift a back part of the car and establish on supports.
2. Turn away a nut and remove a wheel.
3. Remove a brake drum. It will provide the best access to the wheel cylinder.
4. In an impellent compartment turn away a tank cover on the main brake cylinder.
5. Put polyethylene on a mouth and wrap a cover. It will exclude вытекание a brake liquid from system.
6. Turn on накидную a nut of the brake pipeline from an underside of a brake board and disconnect the pipeline.
7. Cautiously take the pipeline aside.
8. The pipe end stick with a tape for a hit exception in dirt system.
9. Turn away bolts of fastening of the cylinder and take out the cylinder from an outer side.


The scheme of assemblage of the wheel cylinder
1 - пыльник
2 - the union of removal of air
3 - the wheel cylinder
4 - a protective cap
5 - the piston
6 - a brake cuff
7 - a returnable spring

1. On an illustration the Scheme of assemblage of the wheel cylinder is shown the scheme of assemblage of the wheel cylinder. After removal of one of protective caps pistons leave the cylinder under the influence of a spring. If it does not occur, knock with the cylinder on wooden бруску.
2. Remove cuffs. Pay attention to their position.
3. Carefully clear and check up all details. In the presence of cracks and задиров on a working surface of the cylinder it is necessary to replace it. At replacement of any detail it is necessary to establish the repair complete set.
4. Grease with a brake liquid or greasing of a cuff and insert the first cuff a working edge into the cylinder.
5. Grease the piston and insert it, having pressed to a cuff.
6. On the other hand insert a returnable spring and enter into the cylinder the second cuff.
7. Insert the second piston, watching to squeezing out the first piston.
8. From both parties establish on pistons and the cylinder case protective caps.
9. Clear the cylinder of a brake liquid or greasing.


1. Establish the wheel cylinder outside on a brake board.
2. From within screw bolts of fastening and tighten their moment of 10 Nanometers.
3. Attach to the cylinder the pipeline and tighten накидную a nut the moment of 16 Nanometers. The nut carving has a small step. Therefore it is cautious наворачивайте and tighten it.
4. Cautiously connect brake колодки to the wheel cylinder.
5. Establish a brake drum as it is described above.
6. Remove from a mouth of a tank polyethylene.
7. Remove air from brake system as it is described more low.


For removal of a brake board it is necessary to remove a brake drum, brake колодки and the wheel cylinder. The description of these works is resulted in corresponding subsections.

1. Disconnect a cable of a drive of the lever of a lay brake.
2. Turn away bolts and remove полуось with a brake board from a semiaxis casing as it is described in the Head Brake system
3. After assemblage remove air from brake system and adjust a lay brake.