VAZ-2106 brake master cylinder: the principle of operation, setup, repair

Brake master cylinder for VAZ-2106 is required to create the system of tubes and calipers high pressure. With this pressure compresses the brake pads, which stop the discs. Brake system is one of the most important, because it is necessary to maintain in good condition. If any malfunction is sure to perform the repair. Quite often a cause of failure becomes GTZ, but before to fix, you need to make sure that it is faulty.

Characteristic malfunctions of brake system

Before performing a repair of the main brake cylinder, make sure that there are no the following issues:

1. Very often the air enters the hydraulic system of the brakes. As a result, the work efficiency is reduced in several times. Make sure that the air is completely absent. For this you need to make leveling the system.
2. Carefully consider all of the elements of the brake system for the presence of streaks. If any, replace destroyed items, and fully pumped system.
3. Jamming of the working pistons or GTZ may occur because of the uneven wear problem is solved, the complete replacement of the GTZ.
4. The presence of breakage of the collector the brake pedal is pressed with very great force.
5. In case of jamming of the cable drive hand brake may tight the rotation of the rear wheels.

Just making sure that all of the above, no fault has occurred, it is necessary to pay attention to the brake cylinder. It can break the cuffs, the pistons, which will appear to leak brake fluid. If there is a fault or breakage of the return spring, the system pressure will be constantly high. But if there is leakage of fluid, the braking efficiency is reduced several times.

Signs of a breakdown of the brake master cylinder

The Main signs of failure of the main brake cylinder for VAZ-2106, are the following:

1. The Presence of traces of brake fluid on the vacuum booster and into him.
2. Brakes are not amenable to pumping.
3. Seizure and fall through the brake pedal.
4. Presence jerks when pressing on the brake pedal.

When repairing the brake master cylinder does not need to set the car on a viewing hole or overpass. Here all is much easier. Replacement brake master cylinder can be done only by opening the hood.

But to pump the brakes better on the overpass. Otherwise, you will need to raise wheel with Jack. If all work is performed on the lift or a viewing hole, you can not only make leveling system, but at the same time to make the adjustment of the cable tension actuator the handbrake.

How to perform the removal of the GTZ?

Replacing the brake master cylinder on the "sixes" as follows:

1. Merges with pear liquid from the surge tank of the brake system.
2. Loosen the hose clamps that secure the hoses coming from the brake fluid reservoir. Please note that if you installed the factory tiedown rings, they can not be removed. It is sufficient to pull the hose by applying a small effort.
3. Using a special wrench is needed to Unscrew the brake pipes from the master cylinder.
4. Take those tubes so they do not interfere with the work.
5. Remove with a key in "13" the two nuts, which produced the mounting device to the vacuum amplifier.

After all these works it is possible to completely remove GTZ.

Repair GTZ

To perform a repair of brake master cylinder will be required to undertake the following steps:

1. On the table should be a clean cloth on which to place the housing of the brake master cylinder.
2. In the mechanism has two pistons (that's the number of circuits in the brake system). On the pistons in the lower parts have slots, which limit the stroke inside the cylinder. Fixation of the pistons is made by means of two locking bolts that are in slots.
3. Remove the boot and Unscrew the bolt, which is fixed to the first piston.
4. If the piston under the influence of spring comes out, you should push him around a bit to make it a little drowned in the cylinder. After such manipulation of the piston without problems out of the cylinder.
5. The Same action is performed for the second cylinder. Twisting the bolt, whenwhich is fixed the element. And in the same way you remove a piston of the second circuit.
6. Be Sure all the elements that pull from the master cylinder, put in the order in which you took it.
7. Install a new Cup with a plastic cone which is available in the repair kit.

The Device master brake cylinder for VAZ-2106 is simple, just a few key elements in the design. But they affect the functioning of the entire braking system.

Make sure that the inner surface of the cylinder is mirrored. Where there are cracks or other damage it is necessary to replace – to repair useless. If the inner part took the form of an ellipse, then bleed the brake system are unlikely to succeed, and if they do it, the new cuffs will last a long time.

Assembly master cylinder

Reassemble in reverse order. If you made the repair of the main brake cylinder VAZ-2106, you must:

1. Install the new cuffs.
2. Paste into the cylinder, the piston of the second circuit and the return spring. Before installing, lubricate the cylinder bore with brake fluid.
3. Fix the position with bolts.
4. Insert the primary piston with the return spring and lock its position with the bolt.

After that check tightness of fixing bolts and install the cylinder:

1. Using two nuts on the studs tighten the vacuum booster.
2. Screw the tube to the GTZ.
3. Install hoses and secure with clamps.

After all the work you need to pour the liquid into the expansion tank.

Pumping systems

The Procedure for bleeding the brake system of VAZ-2106 (or any other car):

1. Rear right and left wheels.
2. Front right and left.

Moving when you work from the farthest brake to the middle (relatively GTZ). Your goal – to get rid of air pockets. When carrying out pumping, carefully watch the fluid level in the reservoir tank, if necessary add.

The Principle of operation of the main brake cylinder for VAZ-2106, is that the two pistons creates a pressure in the system. This pressure squeezed the calipers, and are driven by the pads. If there is at least some air in the system, the brakes will be violated.