What Should I Do If The Hydraulic Butt Welding Machine Fails To Hold Pressure?

What should I do if the hydraulic butt welding machine fails to hold pressure?

The new machine cannot hold pressure after being received.

Cause: The pressure relief valve must be in the CLOSE position and tightened securely.

Inspection of Used Machine

1. Check whether there are contaminants inside the pressure holding valve.

2. Check whether the pressure relief valve is damaged.