At this time, someone will ask, when there is a fault, should we check and repair the engine of the cement mixer first? Because if the concrete in the mixing tank solidifies due to the maintenance of the engine at the first time, it is essential to lose at least one tank of concrete. In serious cases, the mixing tank may be scrapped, and the loss is even greater. Therefore, we should give priority to how to drain the concrete in the mixing tank as soon as possible, and then how to repair the engine.

我們來(lái)分析下造成水泥攪拌車(chē)的攪拌罐不能轉(zhuǎn)動(dòng)有以下三種情況，分別是液壓泵發(fā)生故障、液壓馬達(dá)發(fā)生故障、發(fā)動(dòng)機(jī)故障，下邊我們來(lái)詳細(xì)講解這三種種情況下的應(yīng)急維修處理方式。

First of all, we will analyze the following three situations that cause the mixing tank of cement mixer not to rotate, namely, the hydraulic pump failure, the hydraulic motor failure, and the engine failure. Next, we will explain in detail the emergency maintenance methods under these three situations.

：液壓泵發(fā)生故障

First: hydraulic pump failure

打開(kāi)攪拌車(chē)攪拌筒檢修孔蓋，旋松馬達(dá)上高壓軟管的管接頭，旋轉(zhuǎn)拌筒使拌筒檢修孔斜向下，將混凝土從攪拌筒檢修孔排出；

Firstly, open the manhole cover of the mixing drum of the mixer truck, loosen the pipe joint of the high-pressure hose on the motor, rotate the mixing drum to make the manhole of the mixing drum slant downward, and discharge the concrete from the manhole of the mixing drum;

第二種：液壓馬達(dá)發(fā)生故障

Second: hydraulic motor failure

水泥攪拌車(chē)液壓馬達(dá)水泥攪拌車(chē)液壓馬達(dá)

Hydraulic motor of cement mixer hydraulic motor of cement mixer

可把救援車(chē)的馬達(dá)卸下裝在故障車(chē)上，再將各個(gè)油管接好，啟動(dòng)救援車(chē)即可將拌筒內(nèi)的混凝土排出。以上談的只是攪拌車(chē)使用中應(yīng)注意的幾個(gè)方面，在使用攪拌車(chē)的時(shí)候要嚴(yán)格按照攪拌車(chē)廠家的使用說(shuō)明書(shū)操作，定期對(duì)液壓系統(tǒng)，底盤(pán)等進(jìn)行保養(yǎng)，才能保證水泥攪拌車(chē)正常的工作和出勤率，發(fā)揮的經(jīng)濟(jì)效益。

The motor of the rescue vehicle can be unloaded and installed on the fault vehicle, and then each oil pipe can be connected, and the concrete in the mixing drum can be discharged by starting the rescue vehicle. The above discussion is just a few aspects that should be paid attention to in the use of the mixer. When using the mixer, we should strictly follow the operation manual of the mixer manufacturer, and regularly maintain the hydraulic system and chassis, so as to ensure the normal work and attendance rate of the cement mixer and maximize the economic benefits.

第三種：發(fā)動(dòng)機(jī)故障

Third: engine failure

水泥攪拌車(chē)柴油發(fā)動(dòng)機(jī)水泥攪拌車(chē)柴油發(fā)動(dòng)機(jī)

Diesel engine of cement mixer diesel engine of cement mixer

將故障車(chē)的高壓膠管從馬達(dá)上卸下，把救援用的高壓膠管接上，另一端接在救援車(chē)的油泵上，并將應(yīng)急用的回油管一端接在故障車(chē)的馬達(dá)泄油口，回油管另一端接在救援車(chē)的油泵回油口，利用救援車(chē)來(lái)控制故障車(chē)拌筒的旋轉(zhuǎn)，將混凝土排出。

Remove the high-pressure hose from the motor, connect the high-pressure hose for rescue, connect the other end to the oil pump of the rescue vehicle, connect one end of the emergency oil return pipe to the motor oil drain port of the fault vehicle, and connect the other end of the oil return pipe to the oil return port of the oil pump of the rescue vehicle. Use the rescue vehicle to control the rotation of the mixing cylinder of the fault vehicle and discharge the concrete.

我們經(jīng)過(guò)現(xiàn)場(chǎng)的測(cè)試發(fā)現(xiàn)，在生產(chǎn)廠所有工具齊全的情況下，采用第三種方法大約需要1小時(shí)，如在工地上時(shí)間可能會(huì)更長(zhǎng)，因此建議采用種和第二種方法排出混凝土。

After field test, we found that it takes about 1 hour to use the third method when all the tools in the production plant are complete, and it may take longer on the construction site. Therefore, it is recommended to use the first and second methods to discharge the concrete.