Why does the hydraulic fluid in excavators turn black? This time it's not because of the heat!

Construction machinery on the hydraulic components are many, hydraulic oil in the hydraulic system plays a lubricating role, if not replaced for a long time, the hydraulic oil will become black, viscosity reduction will directly lead to the excavator main pump injection, valves, multi-way reversing valves, oil seals and so on the intensified wear and tear of the various hydraulic system parts, over time resulting in the components of the gap between the occurrence of leakage and seriously affect the excavator's action consistency, powerlessness and other phenomena. Phenomenon.

Hydraulic oil black is very common, the color of the newly purchased hydraulic oil is amber or yellowish, after using for some time will become brown or even black. Hydraulic oil turns black what is going on? Hydraulic oil black is not that the performance is reduced, can not continue to use? Some people think that hydraulic oil black is a natural phenomenon, there is no need to pay attention to? Then the hydraulic oil black in the end how? What should I do if I find that the hydraulic fluid has turned black?

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