1. If there is oil output from the hydraulic pump of the loading mixer truck, we can check whether it works normally in time. If it is not normal, it may be that some equipment accessories in the pressure oil circuit are stuck for other reasons and are at the place of oil return, resulting in short circuit of pressure oil circuit and overflow circuit, or loose pipe joints. When some equipment in the oil circuit leaks seriously, or the seals of hydraulic cylinder and hydraulic motor are damaged. The solution is to directly disassemble the relevant equipment for cleaning to see if the corresponding equipment is damaged. Replace it when it's time to replace it and check it when it's time to check.

2、看自上料攪拌車(chē)液壓泵是不是能輸出液壓油呢。如果說(shuō)是新的液壓泵，沒(méi)有液壓油，可能是泵體有缺陷，讓吸油腔和壓油腔有相通的情況發(fā)生，失去壓油能力，應(yīng)及時(shí)找魯樽機(jī)械廠家更換。若不是新的液壓泵，無(wú)液壓油輸出，則可能是泵的轉(zhuǎn)向不對(duì)，零件磨損嚴(yán)重或損壞，及時(shí)更換。

2. See if the hydraulic pump of the self loading mixer can output hydraulic oil. If it is a new hydraulic pump without hydraulic oil, it may be that the pump body is defective, so that the oil suction chamber and oil pressure chamber are connected. If the oil pressure capacity is lost, it should be replaced by Lu Zun machinery manufacturer in time. If it is not a new hydraulic pump and there is no hydraulic oil output, the steering of the pump may be wrong, and the parts may be seriously worn or damaged. Replace them in time.

3、混凝土攪拌車(chē)的液壓系統(tǒng)能建立正常壓力，一些管路或者液壓缸中間是沒(méi)有壓力的，可能就是因?yàn)楣苈?、小孔或?jié)流閥、換向閥這些部位堵住了。所以要仔細(xì)查看檢查壓力有沒(méi)有油液通過(guò)，找出原因，然后來(lái)排除。

3. The hydraulic system of the concrete mixer can establish normal pressure. There is no pressure in some pipelines or hydraulic cylinders. It may be because the pipelines, small holes, throttle valves and directional valves are blocked. Therefore, check carefully to see if there is oil passing through the pressure, find out the cause, and then eliminate it.

4、若混凝土攪拌車(chē)的液壓泵輸出流量隨壓力升高而顯著減小，且壓力達(dá)不到規(guī)定值，則是由于液壓泵磨損后間隙增大所致。排除方法是測(cè)定液壓泵的容積效率，就可以確定這個(gè)泵是不是能繼續(xù)使用的，對(duì)磨損嚴(yán)重的產(chǎn)品，一定進(jìn)行修配或更換。

4. If the output flow of the hydraulic pump of the concrete mixer decreases significantly with the increase of the pressure, and the pressure does not reach the specified value, it is due to the increase of the clearance after the hydraulic pump is worn. The elimination method is to measure the volumetric efficiency of the hydraulic pump, so as to determine whether the pump can continue to be used. The severely worn products must be repaired or replaced.

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