1. The master cylinder support valve is stuck or the adjustment pressure is too small. Treatment method: Check whether the support valve is adjusted too small. Tighten the direction to the appropriate position. If the slider continues to fall down, there is a problem with the support valve. Put the slider to the lowest limit or place a support under the slider, then take out the valve core to see if there is any impurities inside the valve block and check it. Clean it up and put it back as is.
2. The pilot solenoid valve of the support valve is stuck. At this time, check whether the solenoid valve is abnormal.
3. The control cover of the oil inlet valve in the lower chamber of the master cylinder is damaged. Treatment method: Check whether the Xue valve (under the control cover of the lower cavity oil inlet valve, below the screw plug) is damaged, and whether the O-ring on the lowest surface of the valve hole is damaged by the ring cut, if the damage is serious, replace it. This article is from the official website of the manufacturer WORLD Press Machine www.pressmachine-world.com, please indicate the source for reprinting!
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