4. The pump has an independent leakage port to reduce the friction and power loss of the oil seal on the pump shaft. The fluid flow assistance (including oil filters, shut-off valves, etc.) should not be too large, and the suction vacuum degree should be controlled.
5. Maintenance and regular repairs. After the pump operates normally, the maintenance cycle should follow the regulations of the equipment manufacturer, but a shorter cycle is not harmful. The main contents of maintenance and repair include: whether the pump shaft and shaft connection are normal, whether there is oil leakage between the shaft seal and each joint surface, whether the temperature and vibration of the pump casing and pump cover bearing parts are normal, whether the pump has abnormal noise, whether the oil filter is blocked, and whether the pollution content of various components of the oil exceeds the standard.
