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What happens if the oil supply pressure of the hydraulic press is too low

by:WORLD     2022-09-19


What happens if the oil supply pressure of the hydraulic press is too low



A hydraulic press is a machine that uses hydrostatic pressure to process various materials. The press generally consists of three parts: the machine (host), power system and hydraulic control system.






The phenomenon that the oil supply pressure of the hydraulic press is too low

The phenomenon that occurs in the hydraulic press is that when the engine throttle is fully opened, the oil pressure at the inlet of the torque converter is still lower than the standard value. The reasons for this phenomenon are as follows: the oil supply is low, the oil level is lower than the oil suction port plane; the oil pipe is leaking or blocked; the oil flowing to the transmission is too much; the oil inlet pipe or oil filter is blocked; the hydraulic pump is severely worn or damaged ; Improper installation of oil suction net; oil foaming; inlet and outlet pressure valves cannot be closed or spring stiffness is reduced.







How to solve the problem of too low oil supply pressure of hydraulic press

Most of the hydraulic press automation equipment has a corresponding working life. If the machinery and equipment have been running for a long time, it is inevitable that various parts will appear. There are many reasons why the hydraulic press has no working pressure. Starting with the common sense of maintenance, when the hydraulic system of construction machinery has insufficient working pressure or no working pressure at all, the following methods can be followed.

The oil level should be checked first; if the oil level is lower than the low scale, the oil should be replenished; if the oil level is normal, the inlet and outlet pipes should be checked for element leakage, and if there is oil leakage, it should be eliminated. If the inlet and outlet pipes are well sealed, check the working conditions of the inlet and outlet pressure valves. If the inlet and outlet pressure valves cannot be closed, they should be removed to check whether there are cracks or scars on the parts on them, and whether the oil passages and oil holes are Unblocked, and whether the spring stiffness becomes smaller, the problem should be solved in time. If the pressure valve is normal, the hydraulic press should remove the oil pipe or filter screen for inspection. If it is blocked, it should be cleaned and the sediment should be removed; if the oil pipe is unobstructed, the hydraulic pump should be checked, and the hydraulic pump should be replaced if necessary. If the hydraulic oil foams, the installation of the return oil pipe should be checked, such as the oil level of the return oil pipe is low If the oil level in the oil sump is checked, the oil pipe should be re-installed.

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