The reason for the excessive noise of the four-column hydraulic press

The reason for the excessive noise of the four-column hydraulic press

Condition 1: Plunger pump or motor noise

The detailed reasons for this phenomenon are as follows:

1. There is a phenomenon of air suction inside, or the components are excessively worn.

2. There is a problem with the flow plate of the hydraulic pump, or there is damage.

Condition 2: Relief valve noise

The reasons for this phenomenon are as follows:

1. Air is mixed in the oil, or the needle valve is worn excessively.

2. The deformation of the tension spring makes the pressure regulation of the pilot valve unstable.

Condition 3: Hydraulic Cylinder Noise

The reasons for this phenomenon are as follows:

1. There is air in the oil, etc., or the air is not drained cleanly.

2. The oil seal is too tight, or the piston rod is bent.

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