What s the matter that the hydraulic press can t go up or down?

1. The damping hole of the main valve core is blocked: the oil is too dirty due to the air and oil pollution of the main valve core or the installation carries people and debris; Or the installation quality is poor, the installation accuracy is poor during installation, the gap between the valves is not well adjusted, the main valve core is stuck when the open direction is opened, and the installation quality is poor; Another point is that the main valve core reset tension spring is broken or tortuous, so that the main valve core can not be reset.

2. If the hydraulic valve is broken, the valve is blocked, the internal spring is stuck by impurities, and the pressure of the hydraulic press cannot be raised, and the corresponding hair block needs to be dismantled to check and clean, and then install it.

3. Oil should be replenished; If the oil level is normal, the inlet and outlet pipes should be checked for leakage, and if there is oil leakage, it should be eliminated. If the inlet and outlet pipes are well sealed, the inlet and outlet pressure valves should be checked.

If the inlet and outlet pressure valves can not be closed, they should be removed, and the parts on it should be checked for cracks or scars, whether the oil circuit and oil holes are unblocked, and whether the spring rate is smaller, and the problem should be solved in time.

Reason: One is that the circuit is mainly due to the button and the travel switch, and the other is that the pressure is not adjusted well, and of course it cannot be lowered without pressure. You use a small screwdriver to push one end of the cartridge of the two-way solenoid valve up or down, preferably the one that goes downward.

If you can go down and up, it proves that the hydraulic system is not sick, but it is a circuit disease. If it can't be pushed down, it is a disease of the valve in the system. It's up to you to judge between the two.

The hydraulic press can not be on the bottom, possible reasons:

1) The oil pump pressure is low. When the slider runs downward, the bottom of the slider has been opened, and the weight of the slider itself is added, the slider moves downward, but when it returns again, the slider can be raised due to the low pressure of the oil pump.

1) Solenoid valve problem, when there is a problem with the quick down valve assembly (solenoid valve, plug-in), the slider can not return.

3) When there is a problem with other solenoid valves or components connected to the system, the slider cannot return because it cannot form an effective return pressure.

4) When the filling valve cannot be opened, the slider cannot be returned, but at this time the system will have a good pressure, which is easy to judge.

The pressure of the hydraulic press cannot rise, mainly because the pressure leaks, which may be the relief valve, other flow control valves, or the sealing ring of the hydraulic cylinder may be damaged.

In the process of pressing, the servo press-fitting machine displays the current press-fitting position and press-fitting force in real time, and timely and accurately judges whether the interference amount is appropriate, and at the same time displays the press-fitting curve of the whole force and displacement, which solves the shortcomings of the traditional press that can only be pressed-in and cannot be detected, and the efficiency of the testing machine is low and cannot be mass-produced; The overall structure of the equipment is strengthened by design, and the rigidity far exceeds the standard of ordinary presses, and the overall dustproof design is adopted.

The failure of the hydraulic pressure to lift can be caused by a variety of reasons, and the solutions are as follows:1Lack of hydraulic oil in the hydraulic system car:

Check the liquid level, if the liquid level is below the indicated line, you need to fill the hydraulic mold with oil. 2.Hydraulic Fluid Contamination:

Check the temperature and color of the liquid oil, and replace the hydraulic oil that needs to be replaced, and clean the filter. 3.Loose or damaged parts of the hydraulic lifting mechanism, pulley shaft, connecting rod and other components:

Check for loose parts and tighten if so. If a part is damaged, it needs to be replaced. 4.

Hydraulic pump failure: Check if the hydraulic pump is working, if the hydraulic pump is not working, it needs to be repaired or replaced. 5.

Air in the hydraulic system: Check if there is air in the hydraulic system and expel it. If you're not sure about the source of the problem, it's best to hire an experienced technician to check and fix the hydraulic lift problem.

Hello, the reasons why the hydraulic press is not pressurized are: 1. Operation error, 2. The power of the hydraulic press is not enough to cover it, 3. The hydraulic press has oil leakage 4, and the hydraulic valve is broken or blocked. 5. The loss of the hydraulic pump of the hydraulic press and the aging of the motor.

Solution: Correct operation, and the first potato to find maintenance personnel to check and repair.

The solution to the hydraulic can't rise:

1. Check the hydraulic pump Check whether the hydraulic pump of the hydraulic lifting system has problems such as oil leakage, water leakage, and power failure to ensure the normal operation of the hydraulic pump. Hall land.

If an abnormal situation is found, it should be stopped immediately and handed over to a professional with hydraulic lifting system maintenance qualifications for maintenance.

Second, check the hydraulic cylinder to check whether the hydraulic cylinder of the hydraulic lifting system is aging, whether it seriously affects the service life, if there is aging, it should be immediately handed over to professionals to replace the hydraulic cylinder, in order to ensure the normal operation of the system.

3. Replace the hydraulic oil regularlyThe hydraulic oil of the hydraulic lifting system should be replaced regularly to ensure its quality. In addition, the impurities in the hydraulic oil of the system should be checked regularly, too many impurities will affect the normal operation of the hydraulic lifting system, and the accumulation of cleaning and cleaning will not be destroyed, which may cause damage to the system.

Fourth, check the signal of the hydraulic lifting system to check whether the control signal of the hydraulic lifting system is correct, if the signal is found to be incorrect, it is necessary to adjust the hydraulic control system before the fiber volt to restore it to normal, so as to effectively solve the problem that the hydraulic pressure can not rise.

Summarizing the above is the solution to the hydraulic lifting system, combined with the composition and characteristics of the hydraulic lifting system, if you encounter the problem that the hydraulic lifting can not be raised, you can check and maintain the hydraulic lifting system according to the above content to ensure its normal operation. <>