Hydraulic Pump Maintenance Instructions


1. Daily check the fasteners of the hydraulic pump, such as whether the screws are loose or not, and check whether the installation pipe interface is leaking oil.

2. Check the oil seal for cleaning.Always clean the oil seal to prevent it from affecting the service life of the machine.

3. It is recommended to replace the hydraulic oil after the first 500 hours of operation. The maximum replacement cycle of hydraulic oil is 2000 hours, and the maximum replacement cycle with air filter is 500 hours.

4. In order to optimize the service life of hydraulic components of hydraulic pump, please replace the hydraulic oil and filter regularly.Hydraulic pollution is the main cause of hydraulic component damage.Keep hydraulic oil clean during daily maintenance and repair.

5. Daily use should check whether the oil level of the hydraulic oil tank meets the requirements, and at the same time check the water content of the hydraulic oil and whether there is any abnormal odor.When hydraulic oil contains water, the oil is cloudy or milky, or there are water droplets at the bottom of the tank.The malodorous oil indicates that the working temperature of hydraulic oil is too high.When the above situation occurs, please immediately replace the hydraulic oil, and find out the cause of the problem and solve.Check the vehicle for leakage on a daily basis.
Is to provide pressure for hydraulic transmission of a hydraulic fluid components, is a kind of pump.Its function is to convert the mechanical energy of power machines (such as electric motors and internal combustion engines) into the pressure energy of liquids.The working principle of single plunger pump is shown in the figure.The CAM is rotated by an electric motor.When the CAM pushes the plunger upward movement, the plunger and the cylinder body form the seal volume reduces, the oil extrudes from the seal volume, through the one-way valve to the needed place.When the CAM rotates to the descending part of the curve, the spring forces the plunger downward, forming a certain degree of vacuum, and the oil in the tank enters the sealing volume under the action of atmospheric pressure.The CAM keeps the plunger rising and falling, the sealing volume decreases and increases periodically, and the pump keeps absorbing and discharging oil.
The performance parameters
Hydraulic pump is the power element of the hydraulic system, its function is to provide pressure oil to the hydraulic system, from the perspective of energy conversion, it will be the prime mover (such as the engine) output of mechanical energy into the liquid pressure energy for easy transportation.Hydraulic motors are actuators that convert the pressure energy of the input liquid into the mechanical energy of the output shaft, which is used to drag the load for work.According to the structure, hydraulic pump and hydraulic motor can be divided into gear type, blade type, plunger type and other types.