To date, more and more passenger transport is equipped with steering power steering. Initially, this device was created only for trucks and a variety of types of agricultural machinery. Then the power steering (GUR) was designed not to enhance comfort. And this is due to the fact that the steering column of the plurality of trucks is actually unrealistic to turn without the help of the amplifier. In other words, it was created to simplify the rotation of the steering column for special cars, where it is difficult as a result of a large gear ratio of the steering mechanism. Now the GUR substantially simplifies the rotation of the wheels and for passenger cars, reducing the diameter of the steering wheel and the gear ratio of the mechanism A, thereby making a vehicle more maneuverable and responsive to the rotation of the steering column.

Hydraulic power steering, why need a steering hydraulic power device

As practice shows, the use of the hydraulic agent significantly reduces the number of revolutions of the steering wheel and makes it possible to avoid mass of emergency situations by means of a sharp maneuver in the opposite direction. Make this with an ordinary steering mechanism of any, even a rack-type is quite problematic.

There are two types of power steering - ordinary and egur. The latter is completed with a special electromagnetic valve and an electronic control unit. In general, their design is similar and perfect for any steering mechanism. To date, most vehicles are equipped with a steering rack, which is why the GUR device will be considered on its example.

You can select several main parts of the hydraulic agent:

1. Special pump.
2. Work cylinder.
3. Split-type distributor.
4. Tank for storing the working fluid.
5. System of hoses of nozzles, which is designed to move the fluid.

The distributor and the working cylinder are mounted on the steering wheel and represent a single integer with it. The main purpose of the pump is to create the necessary fluid pressure and bringing in motion using a belt transmission from the motor crankshaft.

After starting the motor, the oil pump rotates and creates pressure inside the system. If the steering wheel is located directly, the liquid circulates the system, bypassing the spool part of the mechanism. But, after turning the steering column in any direction, the steering shaft affects the special torsion, which opens the spool. Further, the work includes one from the cavities of the working cylinder, thereby simplifying the effort that is attached to the steering wheel, and the wheels turn faster.

When the steering wheel is rotated, the oil reaches the maximum pressure value, which turns out to be on the working cylinder. In this case, in order to avoid damage, a special valve is triggered, which opens and releases in the free circulation in the system all the working fluid. When the steering wheel returns to its original position, the valve locking occurs, and the working cylinder presses already in a different cavity, making the steering wheel faster.

Liquid GUR, Why do we need a liquid for the hydraulic agent

As we already know, thanks to the hydraulic driver, you can comfortably control the car due to the easy turn of the steering wheel. These operating conditions of the system creates liquid GUR, which is designed to transmit piston efforts from the pump. Under the liquid is meant special oil, which has a certain consistency. Therefore, on which liquid is used, the efficient operation of the car management system depends.

This oil is poured into the tank, where the pump drives it on the system. In addition, the liquid plays an important role in the operation of the steering elements. It lubricates important details and nodes, preventing corrosion on them. Since the mechanism comes friction and movement of elements, oil affects heat dissipation, preventing overheating. However, the liquid is only the basis. Special additives have been added to it, which performed the main function of the system.

Gur liquid when it needs to be changed

Like all technical fluids in the car, the fluid Gur also needs maintenance, especially with intensive operation of the vehicle. Although some car manufacturers do not regulate the service life of the oil in the hydraulicel, regarding that it is flooded for the entire life of the vehicle and requires only a regular gravy, nevertheless should sometimes be changed. Over time, the liquid can lose its properties, diluted with condensate, become darker, as a result, the steering wheel turns no longer so easily, the vehicle management deteriorates and a considerable risk of emergency appears.

Liquid gur, what fluid to choose to replace

There are the main characteristics of this substance that must be considered when choosing:

1. Chemical properties.
2. Hydraulic properties.
3. Mechanical properties.
4. Viscosity.

As a rule, mineral oil is used for the hydraulovers (there is also synthetic), since the steering has rubber elements in the design, which are able to diverge when the mechanism is constant. In order for these parts to serve as long as possible, mineral oil is used. In addition, the liquid is green, yellow and red. You can mix each other yellow and red colors.

You can fill in the system of the hydraulicer only a quality product that is able to withstand even the highest temperature indicators. The poor quality raw materials at high temperatures can curl within the system, which will significantly worsen the control of the car and can even withdraw the mechanism. In addition, it should be borne in mind that when the oil is heated, a number of vapors are distinguished that should not be threatened for the motorist. When buying, make sure that the appropriate quality certificate is available, which guarantees a safe product.

Tools assistants and consumables for replacing liquid GUR

1. Capacity for the drain of the old liquid GUR.
2. Syringe for twenty cubes with a rubber tube to pump out the old oil.
3. Liquid for the hydraulic cylinder.

Replacing fluid GUR, partial or incomplete, work step in stages

1. Open the hydraulic tank cover.
2. We wear a tube on the syringe and pump the liquid from the tank.
3. Fill the tank with a new liquid.
4. We turn the engine and turn the steering wheel until it stops in different directions.
5. The wasting engine and turn the steering wheel again until it is easy to rotate.

Replacing fluid GUR FULLY, step-by-step instruction

1. We post before the vehicle.
2. Next, pump all the liquid from the tank.
3. Then weakening the clamps on the hoses that go to the tank, remove the tank and hoses. The hose that goes to the pump is depicted to the side, and the one that comes from the steering wheel, omit in the container.
   
4. After that, rotate the steering wheel, as described above, thereby pumping out the old liquid from the system.
5. When the liquid flowed down, take the hose going to the pump and insert the watering can in it.
6. Now we pour into the watering can be in small portions, however, at the same time, someone should actively rotate the steering wheel.
7. When pure liquid flows, we wear hoses and mount the tank to place.
8. Next, pour oil to the desired level and rotate the steering column again.
9. The moach motor and omit in front of the vehicle.

Tips of professionals

When the vehicle is omitted from the jack, check the fluid level and, if necessary, become more. After that, check how the steering wheel rotates.