Probably each of motorists at least once experienced a feeling of helplessness during braking.And when the car continues to move at all in that direction, likely the risk of skidding, and as a result - traffic proisshestvie.S advances in technology, many companies have learned to prevent similar cases.Now almost all the cars the world market, starting with the basic version, equipped with anti-lock wheel ABS.And today we will look at the question of how to pump ABS brakes with their hands.
Brief description ABS
To begin with - briefly about the most traction system.Generally ABS - a system that performs the function of preventing the wheels from locking under heavy / heavy braking of the vehicle.The main task of the ABS is to adjust the speed of rotation of disks.And there is this adjustment is due to the distribution of pressure in the brake system.Since each sensor is sent to a separate signal (electric pulse) which enters into the control unit, and that in turn decides whether a particular wheel deceleration at the time of the vehicle.This system is very useful in the winter time when the contact patch with the road is significantly reduced.In this case, the risk of skidding of the vehicle is reduced significantly, while the car without ABS is subject skidding even on dry pavement in the summer.
device
ABS anti-lock system design wheels of the car suggests the presence of the following parts and elements:
- speed sensor, acceleration / deceleration.
- control valve.This element is placed in the line of brakes.The control valve is a component part of the module pressure.
- ECU anti-lock system.The main task of the electronic control unit ABS system is receiving signals from the above sensors and controlling the operation of the valves.
How to pump ABS brakes?Features pumping
To begin, we note that this operation requires certain technical skills and knowledge.Therefore, before going to work better to study in detail manual service brake system of your vehicle.
What is so special pumping the brakes with ABS?
in cars that block Hydro accumulator and the pump is placed in the same unit, the replacement of fluid and bleeding the system is done in the same manner as in cars without ABS.However, before you pump the brakes with ABS, you must turn off the fuse.
process itself is as follows.Bleeding brakes is done by pressing the brake pedal, and the nipple RTC must turn away.The following switch on the ignition and wait until all the air is applied to expel formed earlier in the system.After this union is twisted, and the brake pedal is released.If everything was done correctly, the instrument panel in the cabin disappears inscription indicates a fault antilock wheels.
How to pump ABS brakes if the car with hydraulic module and accumulator valves placed on separate sites?Here we need a special diagnostic scanner.It will read the information from the ABS electronic control unit.If you do not have such a device, then pump the brakes on the best specialized service stations.The same applies to vehicles with ESP and SBC - such machines can be repaired only in the garage.
How to pump ABS brakes?
On "Toyota" and many other cars of foreign manufacture algorithm of these works almost the same.Therefore, the instructions below, you can apply for any modern car (even for domestic VAZ).
So what to do?To begin, we note that the pressure in the brake system of the car reaches 180 atmospheres.Therefore, to avoid the release of fluid you need to make battery discharge pressure.Only then can you begin to disengage the brake lines.This requires about 20 times to press the brake pedal.
very same pumping is performed with an assistant.Therefore, pre-invite a friend or neighbor in the garage before performing such an operation.How to pump ABS brakes on the "Kalina" and "Priore"?First of all, turn off the ignition and disconnect the brake fluid reservoir to the connectors.Then proceed to the leveling of the front wheels.To do this, put on a hose to the bleed nipple, open it one turn and squeeze the pedal until it stops.It should be kept in this condition several seconds (until all the air is evacuated from the system).Then you can easily twist the nipple and release the pedal.All front brakes, we are ready.
rear wheels
The more difficult task will be to the rear.Here it is necessary to pump each wheel individually.And we start with the right rear.As in the first case, at first we make our money on the hose fitting and unscrew it to turn.Next, the assistant presses the pedal all the way and turn the ignition switch to "2".Note!The brake pedal is released only after running the pump will expel all the air from the system.And as soon as the fluid comes out without bubbles overlap fitting and release the brake pedal.
rear left wheel pumped almost on the same principle, but there are some nuances.How to pump ABS brakes?On the "Volkswagen Passat" and other foreign-made cars should be put on the union and unscrew one turn.Further, without pressing the brake pedal, wait until the pump displays zavozdushennuyu fluid from the system.After that, the assistant presses the pedal halfway and you wrap it fitting.Everything at this point, you can complete the work.Everything is going in the reverse order - the ignition key is placed on the zero and the brake fluid reservoir connectors are supplied.Also, experts recommend to make a further check the system for leaks.
final stage
After all these operations need to top up the brake fluid in the reservoir to a normal level, and check all connections and connections for leaks.Remember that they do not need to leak.
Useful tips
How to pump the brakes with ABS "Priore", "Kalina" and "Honda Civic" right?To work does not bring harm to your car, and you do not have to carry it to the car wash, you should remember a few rules.Firstly, it is not necessary to include the ignition at the time of more than 15-20 seconds.Otherwise it will lead to failure of the electric pump.Secondly, you need to take breaks between pumping wheels.After one wheel will all the air (zavozdushennaya mixture), should not immediately move to second.It is necessary to wait for about 5-10 minutes - until complete disappearance of the air in the system.
Conclusion So, we figured out how to pump ABS brakes on the "Honda" and vases with their hands correctly.Now you do not need to go for help to the car wash, because all the work you can do yourself completely, without leaving his own garage!
