1. When starting the hydraulic pump, it should be started several times. After the oil flow direction and sound are normal, it should be operated at low pressure for 5 to 10 minutes, and then put into normal operation. Before starting the plunger pump, the pump must be filled with clean working oil through the oil drain port on the shell.
2. The viscosity of the oil changes with the temperature. As the oil temperature rises, the viscosity decreases. Therefore, the oil temperature is required to be kept below 60°C. In order to enable the hydraulic pump to work stably at different working temperatures, the selected oil should have oil temperature characteristics with less viscosity affected by temperature changes, as well as good chemical stability and anti-foaming properties.
3. The oil must be clean and must not be mixed with mechanical impurities and corrosive substances. The hydraulic system without a filter device on the oil suction pipeline must be refueled to the oil tank through an oil filter truck (filter accuracy less than 25μm).
4. The maximum pressure and maximum speed of the hydraulic pump refer to the peak values allowed for a short period of time during use. Long-term use should be avoided, otherwise it will affect the life of the hydraulic pump.
5. The normal operating oil temperature of the hydraulic pump is 15-65°C. The maximum temperature on the pump casing is generally 10-20°C higher than the oil temperature at the pump inlet in the oil tank. When the oil temperature in the oil tank reaches 65°C, the maximum temperature on the pump casing does not exceed 75-85°C.
