Refer to several steps to check the hydraulic pump

Posted by hong yi on August 30th, 2019

First of all, the inner surface of the stator of the hydraulic pump is seriously worn, which prevents the blades from keeping good contact with the stator surface. The result is insufficient flow.

1. The inner surface of the stator of the hydraulic pump is seriously worn, which prevents the blades from keeping good contact with the stator surface, resulting in insufficient flow.

Solution: Replace the worn stator of the hydraulic pump.

2. The screw on the top cover of the hydraulic pump is not tightened, and the axial gap increases, which leads to the decrease of volumetric efficiency, thus causing insufficient flow of the oil pump.

Solution: Ensure uniform gap and proper distance, and tighten the screws properly.

3. The hydraulic system has large leakage, large pressure loss and high conversion consumption, resulting in insufficient flow. Solution: Check the hydraulic pump components to see which component caused the leak.

4. Looseness and inflexibility of individual blades of the pump will cause the blades not to operate normally and will also lead to insufficient flow.

Solution: Keep the blades clean and tidy. If this happens even when the blade skin is clean and tidy, consider replacing the deployment blades.

5. Reverse installation of rotor and blade: Reverse the installation direction of rotor and blade, and the work is not normal.

Solution: Keep the rotation direction of the blade and rotor consistent.

6. Serious wear on the end face of the distribution plate: Serious wear will lead to various problems, of which insufficient flow is only one.

Solution: If the hydraulic pump is used to replace the distribution plate and the flow rate is insufficient, you can refer to the above steps to check it, or call Hongyi hydraulic engineer. Website: https://www.vanepumpfactory.com/