One, 100 tonsfour-column hydraulic pressThe oil suction pipe or oil filter is blocked, the second is that the oil viscosity is too large, the third is that the pump speed of the four-column hydraulic press is too high, the fourth is that the end gap or circumferential gap is too large, and the fifth is the overflow valve failure. The key problems of these five problems are the poor oil absorption of the four-column hydraulic press, serious leakage and bypass oil return.
Solution: The oil filter of the 100-ton four-column hydraulic machine should be cleaned frequently, and the oil flow should be twice the pump flow. Oil viscosity, pump speed, should be selected according to the provisions of the oil suction height. In addition, check the pump clearance of the four-column hydraulic machine and repair the safety valve and other components.