Causes and solutions for stuck vane pumps

Many friends may have encountered this problem when the vane pump of the hydraulic press gets stuck during use. How should we solve this problem? In the following content, we will explain it to you so that you can understand this aspect.

1. It may be because the axial clearance or radial clearance inside the pump body is too tight;

2. It may be that the concentricity of the gear pump cover plate and the shaft does not comply with the specified size; Solution: You can replace the cover plate to make it concentric with the shaft.

3. Maybe the concentricity adjustment between the pump and the motor coupling is not in place; Solution: You can adjust the concentricity distance between the pump shaft and the motor coupling. The specified distance cannot exceed 0.01mm.

4. It may be due to the failure of the pressure valve; solution: You can replace the pressure valve with a new one.

5. It may be because the vane pump contains some impurities. Solution: You can use a fine silk screen to filter the engine oil and remove some dirt.