Vacuum brake amplifier is a fairly important detail of the brake system and imagine without it an effective and high-quality operation of the pedal is unrealistic. According to this, information on independent verification of the brake vacuum pump, all motorists must be interested. It is about this that we will negone in our article.

Brake amplifier from which it consists

I doubt that among readers there is such a driver who has no problems with a vacuum amplifier. If, when you click on the brake pedal, you feel that you need to make a maximum of effort, it means that the vacuum room has failed. This item is located under the hood, and the main cylinder is connected to it.

The design of the mechanism is not complicated. This detail includes a hull, which is divided into atmospheric and vacuum niche. The first of them is located closer to the brake pedal.

Also, the vacuum amplifier is distinguished by the presence of a chamber connected to it by means of a check valve and an intake manifold.

Principles of Vacuum Amplifier

In the event of problems with this element, a direct impact on the management of the vehicle arises. The motorist no longer feels the hasive comfort, which sometimes leads to the deposits.

For this reason, all motorists should know how to properly check the mechanism after it is replaced, as well as, be able to understand in a timely manner, what is the problem. To determine the breakdown is necessary on a fixed car.

To check the vacuum amplifier after it is replaced, it takes a slightly brake pedal with subsequent fixation in the middle. Then you need to start the motor. When the pedal is descended independently, it means that the device is in order.

On cars that have a diesel engine, also applied, also vacuum electric pump that constantly ensures the operation of the amplifier. When the motor is stopped, using the check valve, the collector and the amplifier are disconnected, because the vacuum amplifier is capable of functioning only when the engine is running. If the vacuum is out of order, separation will also happen.

In addition, the vacuum amplifier is able to turn on the pusher and the return spring. It is worth saying that in the EPS design, an active brake amplifier is used, designed to prevent the machine's coups at a strong movement speed.

Breakdown of vacuum brake amplifier

Now you should pay attention to the malfunctions of this part, if the brake booster vacuum is restored. The breakdown of this element is able to lead to sad results, however, cannot fail the entire system. In this case, the management of the vehicle is essential and it is necessary to apply additional efforts when indulging the brake pedal. The most frequently vacuum brake pump is faulty for the following reasons:

1. If the hose was cut off, which connects this element with a collector of the device, while you can hear how the vacuum hooks.

2. When breaking the diaphragm in the middle of the case.

3. If the tires of the valves failed.

How to check the quality of repair of the brake amplifier after work on a hundred

In fact, check this element after repair in the workshop or its replacement, it is not at all difficult. In the case of depressurization, the air will begin to flow into the intake manifold, which will lead to rapid depletion of the fuel substance. I think everyone is understandable what happens next.

There are several effective methods for checking the vacuum brake amplifier:

1. To check the quality of repair, you need to squeeze the brake pedal several times when the motor does not work. Then, it is necessary to squeeze the pedal one more time, however, in the middle of the move to stop it and put the start of the motor. If the pedal fails during the procedure, it will mean the normal functioning of the vacuum amplifier. Otherwise, the repair will have to repeat.

2. It is necessary to drown out the engine and run it again in a few minutes. Next, we press the brake pedal several times, applying, while the usual efforts. If the amplifier is working, the pedal should be distilled until it stops when pressed. The system should work, and the vacuum is attracted to the diaphragm, helping the piston of the main brake cylinder through the rod. After that, with the valve, the pressure in the chamber comes with atmospheric. With the second and the next pressing of the pedal, the discharge will not come from where the pedal will make more and less. In case there is no difference between the first and other presses, it means that this device does not provide additional efforts in the main brake cylinder.

3. In addition, professionals are verified by the method of visual inspection, paying reinforced attention on the sublifting, which are formed on the surface of the vacuum-amplifier body and, based on this, make appropriate conclusions about the malfunction of this part.

Assistant tools for repair do it yourself

In order to repair the brake amplifier, you will need the following toolkit:

1.Close screwdriver.

2. Extension.

3. A key-ratchet for thirteen.

Repair of the vacuum brake amplifier with your own hands, the course of work is styled

1. For a start, it is necessary to dismantle the main brake cylinder.

2. After that, we go to the salon, where you need to find and unscrew four nuts near the brake pedal.

3. Next, you need to take a flat screwdriver and remove the bracket that fixes the pedal.

4. The next step will be indulging in the stem with a screwdriver aside into which it is removed.

5. Now you can get out of the cabin and remove the vacuum amplifier, because it does not hold anything anymore.

Next, it is necessary to predict the extracted element and, if possible, repair, however, it is better to provide this work to professionals, since only they are able to do it right. Often, the vacuum brake amplifier is changed to a new one.

If the cuff came out of the order, which happens quite often, it is necessary to replace it. It can be bought with a new vacuum. Replace the cuff without removing the vacuum amplifier from the vehicle.

To start work, we need to fray the axis and disconnect the pusher plug from the pedal. You can get acquainted with the details of this process a little higher. After, you need to remove the protective case and remove the clamping sleeve from the pusher support. Remove, also need an air filter. Now we take the usual knitting needles and remove the cuff and lock washer. It is required to inspect and make a decision. In case the item is too worn, it must be replaced with a new one. The cuff must be lubricated with lithol and make a reverse assembly in the same order.

Now it is required to extort the length of the rod of the plug. For cars that have a left-hand drive steering wheel, the strap length should leave 160 millimeters, and for machines with right-hand drive steering - 120 millimeters. If the length did not come up, the amplifier will have to be replaced.

To begin, it is necessary to install an item, but the pusher should not be fixed. After that, you need to tighten two bolts on which the brake amplifier is mounted and install the main brake cylinder. Then the two mounting nuts in the brake cylinder should be fixed and check if it is secured. Also, you need to make sure the strut holder is located where it should be. Next, you need to mount the pusher into the vacuine and click on the pedal for connecting the pusher and the amplifier.

When you change the vacuum amplifier, it is important not to forget to attract the required amount of brake fluid into the tank if its low level.