How to solve the problem of insufficient pressure on the hydraulic pressure gauge of the concrete mixer, and how to solve the problem of the hydraulic system of the concrete mixer. When the air pressure of the hydraulic system of kejufeng concrete mixer is insufficient or there is no pressure at all, we can investigate from the following aspects.

　　1. 检查混凝土搅拌机液压泵是否能输出液压油。如果是新液压泵，没有液压油输出，则可能是泵体有铸造缺陷(缩孔、砂孔等)，使吸油腔与油压腔接触，油压能力损失，应及时找厂家更换。如果没有新的液压泵，没有液压油输出，则可能是泵转向错误，零件磨损或损坏，及时更换。

　　1. Check whether the hydraulic pump of concrete mixer can output hydraulic oil. If it is a new hydraulic pump without hydraulic oil output, the pump body may have casting defects (shrinkage cavity, sand hole, etc.), so that the oil suction chamber contacts with the oil pressure chamber, and the oil pressure capacity is lost, it should be replaced by the manufacturer in time. If there is no new hydraulic pump and there is no hydraulic oil output, it may be the pump steering error, the parts are worn or damaged, replace them in time.

　　2. 混凝土搅拌机液压泵出油时，检查溢流阀是否工作正常。如果不正常,它可能是一个阀的压力油线灰尘或其他原因,在回油位置,导致短路之间的压力油线和溢出电路,也可以管接头松动,或在压力线一些油阀泄漏严重,或液压缸,液压马达密封损坏,严重的泄漏。方法是打开阀门进行清洗，检查密封间隙大小及各种密封装置，密封装置损坏应更换。

　　2. When the hydraulic pump of concrete mixer discharges oil, check whether the overflow valve works normally. If it is not normal, it may be due to dust or other reasons of the pressure oil line of a valve. At the oil return position, it may cause short circuit between the pressure oil line and the overflow circuit, or the pipe joint may be loose, or some oil valves of the pressure line may leak seriously, or the seal of the hydraulic cylinder and the hydraulic motor may be damaged, causing serious leakage. The elimination method is to open the valve for cleaning, check the size of the sealing gap and various sealing devices, and replace the damaged sealing devices.

　　3.如果水泥混凝土搅拌车液压泵的输出流量随着压力的增大而明显减小，且压力未达到规定值，则是由于液压泵磨损后间隙增大引起的。方法是确定液压泵的容积效率，可以确定泵是否可以继续使用，对磨损严重的部件，应进行修理或更换。

　　3. If the output flow of the hydraulic pump of the cement concrete mixer decreases obviously with the increase of the pressure, and the pressure does not reach the specified value, it is caused by the increase of the clearance after the hydraulic pump is worn. The elimination method is to determine the volumetric efficiency of the hydraulic pump, to determine whether the pump can continue to be used, and to repair or replace the seriously worn parts.

　　4、混凝土搅拌机的液压系统可建立正常压力，而有些管路或液压缸(或液压马达)无压力时，则可能由于管路、开孔或节流阀、换向阀等部件堵塞。这时应逐段检查油压和油液通过情况，找出原因，加以。

　　4. The hydraulic system of concrete mixer can establish normal pressure, while some pipelines or hydraulic cylinders (or hydraulic motors) without pressure may be blocked due to pipeline, opening or throttle valve, reversing valve and other components. At this time, it is necessary to check the oil pressure and oil passage section by section, find out the causes and eliminate them.

　　以上是中科聚峰厂家为大家介绍的混凝土搅拌机压力不足的处理方法。如搅拌车内出现液压系统压力不足或根本没有压力时，可按上述方法检查，使混合器及时恢复正常状态。

　　The above is the treatment method of insufficient pressure of concrete mixer introduced by Zhongke Jufeng factory. If there is insufficient or no pressure in the hydraulic system of the mixer, check and solve according to the above methods to make the mixer return to normal state in time.