If insufficient pressure occurs during the operation of the hydraulic press, it may be caused by low efficiency or excessive leakage, damage or blockage of the relief valve, too little hydraulic oil, blockage of the oil inlet pipe or oil filter, severe wear or damage of the hydraulic pump, etc. During maintenance, the oil level, inlet and outlet pipes, inlet and outlet pressure valves, oil pipes or filters, etc. should be checked in turn to find the problem and repair it.
1.What is the reason for insufficient pressure of hydraulic press?
Hydraulic presses use liquid as the working medium, and hydraulic oil is commonly used, so they are also called oil presses. When using hydraulic presses, sometimes there is insufficient pressure. What is the reason?
(1) The efficiency is too low or the leakage is too large. The pressure of the pressure oil restored by the pump itself is not enough to maintain the normal operation of the system.
(2) The overflow valve is damaged or blocked, so that the normal pressure supplied by the hydraulic pump leaks here or cannot be adjusted.
(3) There is not enough hydraulic oil in the hydraulic press tank, and the system is sucked empty.
(4) The hydraulic system of the hydraulic press leaks and leaks oil.
(5) The oil inlet pipe or oil filter is blocked.
(6) The hydraulic pump is seriously worn or damaged.
2. How to repair the hydraulic press when the pressure is insufficient
When the hydraulic press has insufficient pressure, it will affect the normal use of the hydraulic press and needs to be repaired in time. The specific repair method is
(1) Check the oil level first. If the oil level is lower than the minimum scale, add oil.
(2) If the oil level is normal, check whether the inlet and outlet pipes are leaking. If there is oil leakage, they should be repaired or replaced.
(3) If the inlet and outlet pipes are well sealed, check the working condition of the inlet and outlet pressure valves. If the inlet and outlet pressure valves cannot be closed, they should be removed and checked for cracks or scratches on the parts, whether the oil circuit and oil hole are unobstructed, and whether the spring stiffness is reduced. If problems are found, they should be solved in time.
(4) If the pressure valve is normal, the hydraulic press should remove the oil pipe or filter for inspection. If there is blockage, it should be cleaned and the sediment removed.
(5) If the oil pipe is unobstructed, check the hydraulic pump and replace it if necessary.
(6) If the hydraulic oil foams, check the installation of the oil return pipe. If the oil level in the oil return pipe is lower than the oil level in the tank, reinstall the oil pipe.
3. How to avoid insufficient pressure in hydraulic presses
To avoid insufficient pressure in hydraulic presses, the following three aspects need to be achieved
(1) Ensure that the oil pump can deliver oil smoothly and at a suitable oil output, and that there is sufficient pressure to maintain the normal operation of the system
(2) Ensure that the overflow valve can be used normally to avoid problems such as blockage and damage,
(3) Ensure that there is enough oil in the oil tank to avoid problems such as vacuum in the system.
