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Precautions for the pressure test of the four-column hydraulic press: 1. First, you must understand the principle of the machine and the corresponding structural performance, and carry out the pressure test according to the instructions for use.
Rinse the inner wall of the front and rear covers of the hydraulic press with clean water at high speed. The inner wall of the pipe can be cleaned with a straight strip and then dried with compressed air.
When the hydraulic press starts the cooler to work, it is forbidden to open the water inlet valve quickly, because when a large amount of cooling water flows through the cooler, a "supercooled layer" with poor thermal conductivity will be formed on the surface of the heat exchange tube, which will make the cooler later.
