Quality requirements:

L. suitable viscosity and good viscosity-temperature properties, to ensure that under the condition of temperature change is to be able to transfer power, sensitive, and can guarantee the normal lubrication of hydraulic components.
2. Good anti-rust property and resistance to oxidation stability, under the condition of high temperature and high pressure is not easy oxidation, long service life.
3. Has good resistance to bubble, make product in working conditions, by mechanical stirring constantly produce stable foam is easy to disappear in order to make the power of the accelerated oxidation to avoid the hydraulic oil.

Maintenance:
Hydraulic oil maintenance (if the equipment normal operation, no abnormal condition).
1. Ensure that the hydraulic oil using high temperature; Oil will soon be the oxidation at high temperature.
2. Hydraulic air filter to ? on the site