What are the usage and maintenance methods for imported oil pump maintenance? Let's take a closer look below1. Oil supply method of hydraulic pumpThere are two types of direct axis inclined disc piston pumps: pressure oil supply type and self suction type. Pressure oil supply hydraulic pumps mostly use oil tanks with air pressure, and some hydraulic pumps themselves have oil replenishment pumps to supply pressure oil to the hydraulic pump inlet. The self suction of the self suction hydraulic pump is very strong. The hydraulic oil tank with pneumatic oil supply is adjusted to operate the machinery only after the hydraulic tank reaches the operating pressure after each operation of the machine. When there is a lack of air pressure in the hydraulic oil tank, it will act as a machine and cause a pulling phenomenon between the hydraulic pump and the slider, resulting in abnormal wear of the return plate and pressure plate inside the pump. Select a plunger pump with a supplementary oil pump for oil supply. After use, the operator needs to check the plunger pump 1-2 times a day to see if the hydraulic pump is operating normally. If it is found that the speed of the hydraulic cylinder has decreased or the car is stuck, the oil replenishment pump should be checked for collapse, whether there is any phenomenon at the edge of the impeller, and whether the empty space of the internal gear pump is too large.The oil level in the hydraulic oil tank of the self-priming plunger pump must not be lower than the lower limit of the oil gauge, and a satisfactory amount of hydraulic oil must be maintained. The higher the cleanliness of hydraulic oil, the longer the service life of hydraulic pumps.2. Bearings for hydraulic pumpsThe main component of a plunger pump is the bearing. If there is clearance in the bearing, it will not allow for the normal clearance of the three pairs of friction pairs in the hydraulic pump, and will also damage the thickness of the static hydraulic support oil film of each friction pair, reducing the service life of the plunger pump bearing. According to the materials supplied by the hydraulic pump manufacturer, the uniform service life of the bearings is 10000 hours.The clearance of the disassembled bearing cannot be observed without checking the instrument, and only visual inspection can be used. If scratches or discoloration are found on the roller surface.