For most of mechanized construction enterprises, construction machinery or the state of technology is the ability of the business of good direct normal production factors.
To hydraulic construction machinery, the normal operation of the hydraulic power unit is good technical condition of one of the main sign. Hydraulic oil is qualified and reliable operation of the hydraulic power units of protection, the correct and reliable operation of hydraulic power unit maintenance is fundamental.
Hydraulic oil in the hydraulic power units play a delivery pressure, lubrication, cooling, sealing action, hydraulic oil selection is inappropriate and durability of Hydraulic Power Units failures early decline.
The user should study the "Operation Manual" in the choice grade hydraulic oil under special circumstances need to use on behalf of the oil, they should seek the performance of the same characteristics as the original brand. Different brands of hydraulic oil can not mix, in order to prevent hydraulic oil chemical reaction, and the performance change. Dark brown, white, smelly oil hydraulic oil is bad, which should be changed immediately.