With long-term operation of transport in the harsh conditions of our country, very specific problems occur quite often. The sign of one of them is the formation of foam in the tank of the hydraulic agent. This symptom is not rarely ignored by many car owners. And completely in vain, because the breakdown can entail serious problems and can even become deadly. That is why the car owner must necessarily know why oil foams in the hydraulovel, and what to do when such a problem appears. About this further in the article.

Device power steering

The steering power steering (the more common name is the power steering) is the constructive component of the steering of the vehicle, the additional force in which when the steering column is rotated, is created using a hydraulic drive. It consists of a tank, working fluid, connective hoses, a hydraulic cylinder, a distributor and pump. Consider each component in more detail:

• The pump is designed to maintain pressure and ensure the circulation of the working fluid in the system. It is attached to the power unit and is activated with the help of a belt from the crankshaft. Most of the hydraulic plants are mounted plate pumps.
  
• The distributor is a fairly high-precision mechanism. It is intended to direct the flow of working fluid to the desired cavity of the hydraulic cylinder, and then back to the tank. Mounted on the shaft of the steering mechanism or on the elements of the steering drive. Distributors are rotary (movable element rotates) and axial (movable element (spool) moves progressively).
  
• Hydraulic cylinder under the pressure of the working fluid and via rod and the piston rotates the wheels. It is located between the body and components of the steering drive or mounted in the steering mechanism.
  
• The tank is a reservoir for the working fluid. Here is the probe to control the oil level and the filter element is installed, which ensures cleaning of the fluid supplied to the system.
  
• Working fluid - special oil, ensuring the transfer of effort to the hydraulic cylinder. In addition, it provides lubrication of all system components.
• Connecting hoses. Their main task is to ensure the unobstructed movement of lubricant throughout the mechanism. They are two types: high and low pressure. The first provide circulation of lubricant between the hydraulic cylinder, the distributor and the pump. And the second are designed to return the working fluid from the tank into the pump, and, after processing, back to the tank.

Principle of operation of the hydraulic power steering

The principle of operation of the power steering, both with rotary and axial distributor, is to move the spool during the stroke of the steering column. Moving, the spool blocks the drain highway, and the working fluid under pressure is supplied to the left either the right working cavity of the hydraulic cylinder. The lubricant puts on the rod and the elements of the piston, which rotate the dispenser body and wheels towards the movement of the spool.

As soon as the steering column stops rotating, the scheme changes. The spool stops and restores the neutral position of the distributor housing. The oil without an obstacle flows into the drain highway from the injection. The steering amplifier using the pump simply pumps the working fluid on the system. Wheel location is direct. It is worth noting that when the hydraulic pump is out of order, transportation is not lost.

The oil is foaming in the steering hydraulicel, why, the reasons for foaming oil in the hydraulicel

It is not rarely the cause of the formation of foam in oil is the penetration of air into the working fluid. The air may fall into the hydraulic system or under conditions of disruption of the integrity of the contour, or under conditions of operation of the power unit without the hydraulic tank cover. Frequently, the air enters lubricant by means of cracks on the nozzles and hoses that do not always give to flow, so they will be difficult to detect.

Foam oil Gur, possible dangers

Air, penetrated into a hydraulic closed circuit, completely changes the actuator characteristics. As a result, when turning the steering wheel can twisted, and the force during its movement can change, without giving the driver the opportunity to correctly implement the scheduled maneuver. The most dangerous is the locking of the steering column, which makes the vehicle completely uncontrollable.

Why air in the waterguard circuit can create a deadly situation

As mentioned above, the air from the contour of the hydraulic agent may entail the steering wheel lock, but the greatest danger is based on the fact that the steering wheel is usually blocked at the time of its turn to the extreme position, i.e., when performing complex maneuvers. Probably, it makes no sense to explain to which consequences it can lead.

Oil foams in the hydraulicel, for what reason the appearance of the foam can lead to a complete replacement of oil in the hydraulicel

Another reason for the foaming of oil in the hydraulicel is the falling into the oil of foreign impurities, which during passage through the working area of \u200b\u200bthe hydraulic plot form a thick steady foam. This also entails worsening manageability and blocking the steering wheel, so the car owner must take urgent measures. But in this case, the working fluid in the hydraulicel must be changed completely.

How to find the cause of the air in Gur (step by step)

First of all, it is necessary to detect the causes of air to the working fluid:

1. When the motor is running, ask for an assistant to move the steering column to the left-right and note whether bubbles will appear on rubber hoses.
2. If there are no external symptoms, carefully inspect all the connections, tubes and the surface of the tank for damage.
3. Worn elements of the hydraulic circuit should be replaced.
4. If the breakdown was not detected, contact a specialist, as its services will cost much cheaper replacing all elements of the hydraulic system.

If there is a small amount of air in the hydraulovel, how to remove it (step by step)

If the air volume in the hydraulicel is small, try to squeeze it, without disassembled the contour:

1. We bring the vehicle and let it work 3-5 minutes at idle.
2. Then turn the steering wheel to the right until it stops, we wait for 10-15 seconds and repeat the operation by selecting the leftmost left arrangement of the steering column.
3. After several goals, the air should go out, which will indicate the absence of foam in lubricant material.
4. To check the quality of repair, check the volume of fluid in the tank - the difference in the levels with a fully cooled engine and when the commissioned should not exceed five millimeters.

How to remove air Disconnecting from a tank Return hose (step by step)

As practice is evidenced, it is not always the way it is possible to restore the performance of this node. If the oil continues to foam after the first attempt, disconnect the return hose from the tank and close it with a hole with a special plug or improvised tube from waterproof materials. The end of the disconnected hose is lowered into a clean bottle or other container. To squeeze air out of the hydraulic agent, you need to start the motor and twist the steering wheel until the fluid starts to go from the hose. After that, the motor should be drowning, and the liquid pour back to the tank. The process is repeated until the hose flows a clean liquid that does not contain bubbles. It is better to fulfill this event together, as it will be quite problematic to independently trace the presence / absence of foam in a fusion of oil and stop the motor in a timely manner.

How to replace the filter GUR do it yourself (step by step)

1. To replace the steering hydraulic filter, first of all, it is necessary to find a hydraulic tank, which, as a rule, is located in the windscreen space in a prominent place.
2. Next, remove the hydraulic tank cover.
   
3. We suck the working fluid using a syringe.
   
4. I pull out the filter and install a new one in its place.
   

Rales in the hoses is one of the reasons for foaming oil, how to eliminate

In some cases, the cause of oil foaming can be dirt in the hydraulic circuit. The source of this is often the following issues:

1. Fixed fittings on vehicle wheels.
2. Filter has been hammered in a tank.
3. Rales in hoses.

If dirt enters the system through breaks in the hoses, simply replace torn hoses to new ones.

Scored fittings on wheels cars, how to clean (step by step)

To clean the fittings on the wheels of the vehicle, we do the following:

1. Remove the wheels of the car.
2. Using the key to "8", we unscrew the protective cap.
3. Connect the hose with a diameter of 6.5 millimeters to the fitting.
4. By this hose, we descend the technical fluid from the hydraulic circuit.
5. In order for the oil level does not fall below the permissible, it is necessary to simultaneously fill the lubricant into the hydraulic tank.
6. The event is considered complete if it begins to leave a clean oil without foam and impurities.
7. After that, we pump the hydraulic circuit.

How to pump the hydraulic outline of the hydraulic plug (step by step)

To pump the hydraulic outline of the hydraulicer, it is necessary to rotate the steering wheel to the extreme position on the engine running, as described slightly higher in the article.

Council Profi: how to prevent a serious breakdown of GUR

Despite the outstanding insignificance of this defect, the formation of foam in oil may entail a heavy accident. Therefore, this malfunction must be immediately applied, applying all possible efforts for high-quality work. Be extremely careful and carefully control the performance of the system after the end of the repair. As practice shows, completely squeeze the air and remove all impurities succeed only in one of four cases. Therefore, during the breakdown of the hydraulic driver, transporting transport to a hundred with the help of a tow truck will not be superfluous, as it is about your safety.

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