The order of bleeding the brakes and the main elements of the system

It is necessary to know which order of bleeding the brakes are observed in order for the entire system to work as stable as possible. It is important that there are not a single cubic millimeter of air left in the tubes and hoses, because it is the obstacle in the implementation of braking. But first, it is worth considering the entire braking system in order to know its principle of operation and to understand for what purposes a particular node is needed.

The vacuum amplifier of brakes

This is the very node of the system, which provides the maximum degree of comfort, improves driving. Of course, the order of bleeding the VAZ 2109 he does not affect, but for the full picture you need to talk about it. A vacuum amplifier is installed between the master cylinder and the pedal. In fact, this is an intermediate link that allows you to increase the effort that is applied to the brake pedal from the driver's leg.

Inside, you can see the membrane, and the rod from the main brake cylinder connects (not rigidly) to it. On the other hand, the brake pedal is connected. The amplifier works by a vacuum, which creates a carburetor or a special pump. It all depends on whether the injector or carburetor fuel injection system is used on a specific car. But then comes a more interesting device - GTZ. About it will be told below.

Master Brake Cylinder

It is mounted on the body of the vacuum amplifier using two pins. Its replacement would not be a problem, if not for the brake tubes, in which the tips are made of soft metal. That's it is the master cylinder and affects the order of bleeding the VAZ 2107 and other models. The fact that with its help creates in the system pressure, which is enough to compress the calipers of calipers. And there is a need for a great effort, because stopping the car from a speed of even 60 km / h is a difficult task.

Inside the main cylinder is hollow, two pistons move in it. And their movement is synchronized, which allows creating the same pressure in all contours of the brake system. But there is a huge advantage in using such a design of the main brake cylinder - if the leakage of one tube fails, the second circuit continues to work stably. Consequently, the safety indicator improves. Even if one hose is broken, the machine can stop without problems.

Caliper drive calipers

And here it is already power devices of system of brakes. And the order of bleeding the VAZ 2110 means that you must bleed air from the calipers. The reason for this is simple - the calipers are the end point for the brake fluid. Then she does not go away. And what is a support, why such a name was invented by designers? In fact, it could be called a cylinder, because the design is identical.

This is an aluminum case inside which there is a cavity. It is filled with fluid when the brake system is running. When the pedal is depressed, the pressure is increased, so that the steel piston, firmly fitted in the caliper, is squeezed out and propels the pads. When the pressure decreases, the pads return to their original position under the action of the springs. Rear drum brakes are equipped with cylinders, in the middle part they have a hole for supplying liquid, and at the edges of the pistons, which drive the pads.

Expansion tank

An integral component of the system is installed either on the main brake cylinder housing or in the immediate vicinity of it. Remember that the order of bleeding the VAZ 2114 means the presence of fluid in the tank. It is made of plastic, from below has holes for connection to the brake cylinder. On top of the hole for refilling with liquid, it is closed with a stopper.

The latter has a very specific design. This is not just a cork, but a symbiosis with a float type level sensor . A metal axle is mounted, at its lower end there is a light float, which is immersed in the brake fluid. At the top are two contacts. When the level is lowered, they close and close the voltage to the incandescent lamp, which is installed in the instrument panel. This indicates that you need to pour the liquid into the system, and also conduct an inspection for leakage.

How to make a pumping

To carry out the pumping of the brakes, you need:

1. Brake fluid.
2. Transparent tube and jar.
3. The key is 19 (for unscrewing the wheel bolts).
4. The key is 8.
5. Special crimp type key for 8.
6. Assistant.

The first wheel is pumped from the right side. It is farthest from the master cylinder. It is necessary to follow the order of bleeding the brakes, otherwise the effectiveness of the work done will be zero.

Assistant to seat in the driver's seat. You put the tube on the bleeding valve. Put its free edge into a jar with a small amount of liquid. The tank is filled to the maximum, the assistant presses the brake pedal several times, then fixes it in the extreme position at the floor. You twist the choke (half turn is enough). Look at the tube, it starts to run a liquid with air bubbles. And so several times, until there is no air. Then proceed to the second rear wheel. After him, the right front. And the left front wheel is pumped the very last.

Conclusion

That's all, the pumping brake system is completed. Before assembling, be sure to check that all connections are securely tightened. It is advisable to put rubber caps on them so that there is no clogging. This will prove to be a plus, the next repair will be easier to twist the fittings.