Precautions for the use of hydraulic pump
Jul 08,2024
1. When the hydraulic pump is started, it should be moved several times. After the oil flow direction and sound are normal, it should be operated under low pressure for 5~10min, and then put into normal operation. Before the plunger pump is started, the pump must be filled with clean working oil through the drain on the shell.
2. The viscosity of the oil changes under the influence of temperature, and the viscosity decreases as the oil temperature increases. Therefore, the oil temperature is required to be kept below 60 ℃. In order to make the hydraulic pump work stably at different working temperatures, the selected oil should have oil temperature characteristics whose viscosity is less affected by temperature changes, as well as good chemical stability and anti-foam performance.
3. The oil must be clean and must not be filled with mechanical impurities and corrosive substances. The hydraulic system without filtering device on the oil suction pipe must be filled to the oil tank by the oil filter truck (filtering accuracy less than 25um).
4. The maximum pressure and maximum speed of the hydraulic pump refer to the peak value allowed in 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 working oil temperature of the hydraulic pump is 15~65 ℃, and the maximum temperature on the pump casing is generally 10~20 ℃ higher than the oil temperature at the pump inlet in the oil tank. When the oil temperature in the oil tank reaches 65 ℃, the maximum temperature on the pump casing does not exceed 75~85 ℃.
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