1 Insufficient pressure in hydraulic station

This situation is believed that we will often encounter, because any hydraulic pump station in the use of time for a long time, there will be more or less the problem of insufficient pressure.

1. The hydraulic pump installed in the hydraulic station, such as quantitative vane pump, variable vane pump, variable plunger pump, internal gear pump or external gear pump, has low speed.

2. The relief valve is damaged. In fact, this is the same reason why all the hydraulic oil just passed through the overflow valve and spilled back to the E-mail, either repair or replace it.

3. The level of hydraulic oil in the E-mail is too low. According to the normal use requirements of the hydraulic system, the oil is added to the specified height of the oil level gauge of the oil tank when the oil is released.

4. Hydraulic oil pumps, such as quantitative vane pump, variable vane pump, variable plunger pump, internal gear pump and external gear pump, as well as oil cylinder or motor damage, internal leakage.

5. There is a problem with the integrated channel fast design. This is completely the level of hydraulic system design workers ability problem, good hydraulic system design engineers will not appear such a problem.

2 The hydraulic station has no pressure at all

It is rare to see that there is no pressure at all in the hydraulic station. We will analyze every detail that may cause this problem.

1. Hydraulic oil pumps, such as external gear pumps, internal gear pumps, variable plunger pumps, quantitative vane pumps or variable vane pumps are damaged and cannot absorb oil.

2. The position of the directional control device of the quantitative vane pump above the hydraulic station is wrong

3. The hydraulic oil pump drive device in the hydraulic system is twisted.

4. The hydraulic oil in the overflow valve is all overflow back to the E-mail. This is obvious that there is a problem with the overflow valve. It is very troublesome to repair these small accessories specially for the overflow valve and replace them directly.

5. The hydraulic oil pump can not suck in the hydraulic oil. The cause should be that there is no oil in the E-mail or the filter is blocked. In fact, this kind of situation has been encountered many times. The newly bought hydraulic pump station of the customer thinks that there is oil in the E-mail, then it is installed on the machine, and then complains about the problem with the hydraulic system.