: Choose the right one. "We described in detail about the composition and functions of hydraulic fluids for GUR. In this material - details about how much the working fluid is served and how to replace it correctly.
When need to change oil in gur
Some car dealers assure that the hydraulic fluid, poured into the GUR from the plant, is not replaced throughout the life of the car (this is mainly related to the so-called "green" oils). This statement is erroneous. Hydraulic fluid - consumable material for which such concepts are inherent as aging during operation. It should be understood that there are recommended (planned) car manufacturer Time to replace fluid in GUR (marked in the operating manual), and there are special replacement time - early and emergency.
Early hydraulic fluid in GUR is changed due to the failure of the elements of the steering mechanism (rail, gears, thrust). In order for the newly installed steering elements to work simply, it is recommended to replace the liquid in the GUR - especially if it is exploited by without replacement for several years.
Emergency replacement of hydraulic fluid in GUR is carried out in case of depressurization of the system of the hydraulic cell or the failure of its nodes and mechanisms (hydraulic cylinder, controlling spool, pump, hoses).
It is necessary periodically, once every six months, check the level and condition of the hydraulic fluid in the expansion tank.
If the level fell (and it should be in the tank between MIN and MAX marks), then it may have occurred depressurization of the system and oil leaves. Then it is necessary to check the status of all nodes of the hydraulic system, reveal the breakdown and fix it. If this is not done on time, then the consequences can be sad: increased wear of the working parts of the pump (as a result - the failure of the power steering mechanism housing in the area of \u200b\u200bcompression rings), a decrease in the mobility of the pump reduction valve due to insufficient heat dissipation from the pump nodes, enlarged Wear teeth of the shafts of the steering rack and gearbox.
The state of the working fluid in the GUR is simply checking: we open the expansion tank, with the help of the probe we take a certain amount of oil and apply it to a blank paper. If the liquid is transparent, has a color rack - everything is in order with it. If a turbid, with visible impurities - such an oil must be replaced. The appearance of sediment in the hydraulic fluid indicates that its additives will no longer cope with their functions due to decomposition during operation. If such a liquid is not replaced, then oil in the GUR can foam, oxidize, lose its lubricating and anti-corrosion properties, which will lead to a system breakdown.
Replacing fluid in GUR: Five simple steps
To replace the working fluid in the hydraulicel, we will need: jack, medical syringe, clean vest, canister with oil for GUR. On average, no more than 1 liter of liquid take to replace. The recommended amount can be found in the car manual.
Step 1. Install the car on the lift. If it is not, we use two jacks for hanging the front wheels.
Step 2.Open the lid of the expansion tank GUR, with the help of a medical syringe, pump a waste fluid.
The fluid remaining in the tank can be merged, removing the hoses (the main one leading to the pump and the reverse, coming from it) and lowering them into the prepared container (a plastic 1.5 liter bottle is suitable). First, remove the main hose (as a rule, is located below), turn the wheel, seeking pumping system.
Do not turn the engine! When the liquid stopped dripping, set the main hose to the place, remove the reverse and produce the same action with it.
Step 3.Fill fresh hydraulic fluid into the expansion tank GUR, watching its level. The optimal level is between MIN and MAX marks. Note that in some expansion tanks there are four labels: Min Cold and Min Hot, Max Cold and Max Hot. Cold is the level of "cold" fluid, hot - "hot", that is, when the car is operated.
Step 4. Rotating the steering wheel to the right and left for pumping fluid on the GUR system. Repeat the level of oil in the labels - if it has become less, we fill and so until we set the optimal level. Spin the lid of the expansion tank.
Step 5.We descend the car from the lift, we remove the jacks. We start the engine, we pass a few kilometers and re-measure the fluid level in the GUR tank. If it is in the middle of MIN HOT and MAX HOT labels, then the oil is no longer needed to top up. If the liquid exceeds the MAX HOT level, then it is necessary to pour some amount of fluid, as in the process of operation (when heated), it can spill out of the tank and pour the engine nodes nearby, which will lead to the failure of the motor.
As we see, no special complexity in the process of replacing the working fluid in the hydraulic power steering wheel. Nevertheless, it is important to remember that the replacement of oil in the GUR should be accurately used, using pure sweater, since the mud entering the liquid can lead to the deterioration of its operational qualities. For those who are not confident in their own power, we advise you to replace fluid in the GUR on a hundred - there this operation is carried out on a special stand, which guarantees high-quality oil replacement.
