Lubricant issue
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The lubricating oil used in the gearbox is closed-type industrial gear oil No. 220. After it had been in use for some time, I noticed that the oil level was low, about 1 centimeter below the sight glass. In such a situation, I asked the operator to top up the oil to the specified level. However, during operation over the following days, I observed foam forming on the surface of the oil, about 2 centimeters high. The same type of lubricating oil was used; what could be the reason for this? There was no foam before. Could someone please advise me on how to get rid of these particles – should I replace all the lubricant?
“There’s not enough oil; foam forms after adding more. ”It’s hard to say. It is recommended to replace everything. Is it also a problem with the quality of the new oil? Last edited by wdc10 on 2008-6-8 16:27 in this post.]
It is recommended to replace all the oil, and to have it analyzed before adding new oil, adding it only after it meets the required standards. Moreover, the oil that is released should be analyzed to identify the cause of the problem.
It’s likely a problem with the oil quality; it’s recommended to have the oil tested! Once it is confirmed there are no problems, replace all the oil in the pump!
Did materials inside the device or other impurities get in?
It’s better to use imported lubricant instead! Is your oil fake?
It's normal for there to be bubbles on the surface of the oil; I don’t think it’s a problem. That’s why some gas stations are equipped with air pumps – their purpose is to remove excess air from the oil. The new oil you fill in may contain excess air dissolved within it, and this air is released during operation, resulting in the formation of bubbles. It’s no big deal. As long as the machine’s temperature and vibration are normal, that’s fine. .
According to the poster, there seems to be an issue with the oil; foam formation is often indicative of a problem with the quality of the oil. It is recommended to drain all the old oil and replace it with fresh oil, which should resolve the issue