Time:2023-04-29 15:57:32 Browse: 120
1. Take out a small amount of tested oil from the 200-ton four-column hydraulic oil pump, and the color of the viewer changes. If it is found to be milky white and turbid (sometimes like light yellow milk), it needs to be replaced.
2. Using the incineration method to identify, it is found that the hydraulic machine oil contains a lot of water, and a lot of white smoke will come out when it is incinerated. Moreover, it feels that it has lost its viscosity when touched by hand. These phenomena all indicate that the oil has been emulsified and deteriorated, and it is not suitable for reuse.
3. Take out a small amount of the oil to be tested, colloid deposits, put it on your fingers and knead it, if you feel a lot of colloid and strong adhesion, it means that the oil has been oxidized.
4. Use filter paper to filter. If there is black residue on the filter paper after filtering, and it is accompanied by a strong nose odor, it means that the oil of the hydraulic machine has been oxidized and degraded.
5. You can also take out some deposited sludge directly from the bottom of the fuel tank. If you find a lot of asphalt and deterioration, it means that the oil in the hydraulic oil tank has been oxidized and deteriorated, and its performance has been seriously reduced, so it needs to be replaced.
If some experienced masters can also see whether the hydraulic machine needs to change oil by visually inspecting the oil. Hydraulic oil is an important medium for the normal operation of the hydraulic machine. After a period of use, we must replace it in time so that the hydraulic machine can work smoothly.
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