In the process of using the mixer, if the hydraulic system has problems, the operation performance of the mixer will be greatly reduced. Only by understanding the causes of the hydraulic system fault and eliminating the fault in time can the mixer recover to normal. Share the reasons, diagnosis and cleaning methods of insufficient or no pressure in the hydraulic system of the mixer, for our reference and learning. If there is insufficient or no pressure in the hydraulic system of the automatic mixer truck, we can check it according to the following aspects:

一、查看液压泵是否能输出液压油。假如是新的液压泵，无液压油输出，可能是泵体有铸造缺点（缩孔、砂眼等），使吸油腔和压油腔相通，失掉压油能力，应及时找厂家替换。若不是新的液压泵，无液压油输出，则可能是泵的转向不对，零件磨损严峻或损坏，及时替换。

1、 Check whether the hydraulic pump can output hydraulic oil. If it is a new hydraulic pump, no hydraulic oil output, it may be that the pump body has casting defects (shrinkage cavity, sand hole, etc.), so that the oil suction cavity and the pressure oil cavity are connected, and the oil pressure capacity is lost, it should be replaced by the manufacturer in time. If it is not a new hydraulic pump and there is no hydraulic oil output, it may be that the steering direction of the pump is not correct, parts are severely worn or damaged, so replace them in time.

二、自动搅拌车若液压泵有油液输出，查看溢流阀作业是否正常。若不正常，则可能是压力油路中的某个阀有污物或其他原因卡住，处于回油方位，致使压力油路与溢流回路短路，也可能是管接头松脱，或处于压力油路中的某些阀走漏严峻，或液压缸、液压马达的密封损坏，严峻走漏。

2、 If the hydraulic pump of the automatic mixer has oil output, check whether the relief valve works normally. If it is abnormal, it may be that a certain valve in the pressure oil circuit is stuck due to dirt or other reasons, and it is in the oil return direction, resulting in the short circuit between the pressure oil circuit and the overflow circuit, or the loose pipe joint, or serious leakage of some valves in the pressure oil circuit, or the seal damage of the hydraulic cylinder and hydraulic motor.

扫除办法：拆开有关阀进行清洗，查看密封空隙的大小及各种密封设备，密封设备损坏应替换。

Cleaning method: disassemble the relevant valve for cleaning, check the size of sealing gap and various sealing equipment, and replace the sealing equipment if it is damaged.
              

三、搅拌车若液压泵输出流量随压力升高而显着减小，且压力达不到规定值，则是因为液压泵磨损后空隙增 大所致。

3、 If the output flow of the hydraulic pump of the mixer truck decreases significantly with the increase of the pressure, and the pressure can not reach the specified value, it is due to the increase of the gap after the hydraulic pump is worn.

扫除办法：测定液压泵的容积功率，即可确定该泵是否能继续运用，对磨损严峻的零件，应进行修配或替换。

Cleaning method: determine the volume power of the hydraulic pump to determine whether the pump can continue to use. Repair or replace parts with severe wear.

四、搅拌车若整个液压系统能建立正常压力，而某些管路或液压缸（或液压马达）中无压力，则可能是因为管路、小孔或节流阀、换向阀等部位堵塞。此时，应逐段查看压力和有无油液经过，找出原因，加以扫除。如若搅拌车呈现液压系统压力不足或完全无压力的情况就可依据以上的办法排查与处理，让搅拌车及时康复正常状况。

4、 If the whole hydraulic system of the mixer can establish normal pressure, but there is no pressure in some pipelines or hydraulic cylinders (or hydraulic motors), it may be due to blockage of pipelines, orifices, throttle valves and directional valves. At this time, check the pressure and whether there is oil passing by section by section, find out the reason and clean it. If there is insufficient or no pressure in the hydraulic system of the mixer, we can check and deal with it according to the above methods, so that the mixer can recover in time.

以上就是怎么处理自动搅拌车系统压力不足的问题介绍，希望对大家有所帮助，如想了解更多资讯内容请多多关注咱们的网站。

The above is how to deal with the problem of insufficient pressure in the automatic mixer system. I hope it will help you. If you want to know more about it, please pay more attention to our website.