Many excavators have encountered the problem of oil cylinder discoloration during use. I think there is a problem with the quality of the oil cylinder. In fact, oil cylinder discoloration is a very common phenomenon. This article will explain how to handle the discoloration of the oil cylinder. Generally, the cylinder will turn blue first. Then the color deepens to purple. It turns black at last. Most of the reasons are that the hydraulic oil temperature is too high and this phenomenon occurs in the front half of the bucket cylinder. It is recommended to clean the dust on the radiator frequently. Ensure the heat dissipation effect. If a very small part of the cylinder is blue, it may not need special attention. It will disappear automatically after a period of time. If the discoloration is serious, replace the oil seal and wear sleeve. Meanwhile, try to avoid high temperature of hydraulic oil. It will return to normal after a period of time.
