1,Hydraulic pump startup should be tapped a few times, the direction of oil flow and sound are normal, then run at low pressure for 5 to 10min, and then put into normal operation. Before starting the piston pump, the pump must be filled with clean working oil through the oil drain port on the casing.
2, the viscosity of the oil is affected by temperature changes, oil temperature increases viscosity decreases, so the oil temperature is required to remain below 60 ℃, in order to enable the hydraulic pump to work stably at different operating temperatures, the selected fluid should have a viscosity affected by the temperature change of the oil temperature characteristics of the smaller, as well as better chemical stability, anti-foam properties.
3, the fluid must be clean, not mixed with mechanical impurities and corrosive substances, suction line without filtering device of the hydraulic system, must be filtered oil car (filtration accuracy of less than 25μm) refueling to the tank.
4, the maximum pressure and maximum speed of the hydraulic pump, is the peak value allowed for a short period of time in use, should be avoided for a long time, otherwise it will affect the life of the hydraulic pump.
5, the normal operating oil temperature of the hydraulic pump is 15 ~ 65 ℃, the maximum temperature on the pump casing is generally 10 ~ 20 ℃ higher than the oil temperature in the tank at the entrance of the pump, when the oil temperature in the tank reaches 65 ℃, the maximum temperature on the pump casing does not exceed 75 ~ 85 ℃.
