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How to present the hydraulic oil pollution?
Author : admin Time : 20-02-14 AllPageView : 595

Regular inspection of oil quality

Oil performance can be selected according to specific needs, but the oil must be strictly controlled without dirt and clean. When refueling, it must be filtered to prevent the intrusion of dust and fiber debris. Check the oil level frequently. The new machine must clean the hydraulic oil tank, the magnetic rod in the oil return filter and the magnetic cup of the servo circuit filter, and clear the hydraulic cooling. Dust accumulator, replace the filter element. Regular inspection of oil quality includes the following three aspects:

(1) The degree of oxidation of hydraulic oil. During the use of hydraulic oil, due to temperature changes, the effects of oxygen and sunlight in the air will gradually be oxidized to change its viscosity and other properties. The degree of oxidation is usually judged by the color and odor of the hydraulic oil. If the hydraulic oil is dark brown in color and has a foul odor, it has been oxidized. The darker the brown and the stronger the malodor, the stronger the degree of oxidation. At this time, new oil should be replaced.

(2) Extent of water content in hydraulic oil. If water is mixed into the hydraulic oil, its lubricating performance will be reduced and the metal will be corroded. Judging the degree of water in the hydraulic oil is usually based on the change of its color and odor. For example, if the color of the hydraulic oil is milky white and the odor does not change, it means that too much water is mixed. If there is a sound on the board, it means that it contains water. Replace with new oil.

(3) When impurities are contained in the hydraulic oil. After working for a period of time, take a few drops of hydraulic oil and put it on your hand, twist it with your fingers, check whether there are metal particles, or observe whether there are tiny flash points in the sun. If there are more metal particles or flash points, the hydraulic oil contains more mechanical impurities. At this time, the hydraulic oil should be replaced, or the hydraulic oil should be discharged, and the sedimentation should be performed for not less than 42h, and then filtered and used.


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