Excavator hydraulic cylinder discoloration how to go

The first point is hydraulic oil, the additives in the hydraulic oil will adhere to the cylinder at a specific temperature and pressure, and thus change color. Second, different brands, different labels of hydraulic oil mixed. Because the additives in the hydraulic oil are different, and caused by

The third gap problem can cause the layer on the wear ring and the material on the seal to adhere to the surface of the cylinder due to high temperature, and then discolor. This situation will basically appear on a single cylinder, and will not appear on all cylinders, if you want to solve it, replace the seal or wear ring can be solved.

Fourth, the cylinder discoloration caused by the temperature difference, the frequent temperature change of the front cylinder, will be more obvious when the temperature difference is large. Through the above analysis, we can conclude that the cylinder discoloration is harmless, it is only because there are colored substances attached to the surface of the cylinder, it will not cause additional damage, does not affect the use of.