Before starting the mixer, start the engine. At this time, the transmission should be in the neutral position, and the connection between the engine and the driving wheel should be disconnected to remove the engine load. After the engine has been started and the normal idle running has started, the transmission can be put into a certain gear to start the mixer.

　　攪拌車起步時(shí)，攪拌車是從完全靜止的狀態(tài)逐步加速的。如果傳動(dòng)系統(tǒng)（它聯(lián)系著整個(gè)攪拌車）與發(fā)動(dòng)機(jī)剛性地聯(lián)系，則變速器一掛上擋，攪拌車將突然向前沖動(dòng)一下，而使發(fā)動(dòng)機(jī)熄火。這是因?yàn)槠噺撵o止到前沖時(shí)，產(chǎn)生很大的慣性力，對(duì)發(fā)動(dòng)機(jī)造成很大的阻力矩。在這個(gè)慣性阻力矩的作用下，發(fā)動(dòng)機(jī)在瞬間轉(zhuǎn)速急劇下降到穩(wěn)定轉(zhuǎn)速（一般為300～500r/min）以下，發(fā)動(dòng)機(jī)即熄火而不能工作，當(dāng)然攪拌車也就不能起步。

　　When the mixer starts, it accelerates gradually from a completely static state. If the transmission system (which connects the whole mixer) is rigidly connected with the engine, the mixer will suddenly drive forward once the transmission is put into gear, and the engine will be shut down. This is because when the car moves from static to forward, it produces a great inertia force, which causes a great resistance moment to the engine. Under the action of this inertia resistance moment, the engine speed drops sharply below the lowest stable speed (generally 300-500r / min) in an instant, and the engine will shut down and not work, of course, the mixer will not start.

　　在傳動(dòng)系統(tǒng)中裝設(shè)了離合器后，在發(fā)動(dòng)機(jī)啟動(dòng)后，攪拌車啟動(dòng)之前，駕駛員先踩下離合器踏板，將離合器分離，使發(fā)動(dòng)機(jī)與傳動(dòng)系統(tǒng)脫開(kāi)，再將變速器掛上檔，然后逐漸松開(kāi)離合器踏板，使離合器逐漸接合。在離合器逐漸接合的過(guò)程中，發(fā)動(dòng)機(jī)所受阻力矩也逐漸增加，故應(yīng)同時(shí)逐漸踩下油門踏板，即逐步增加對(duì)發(fā)動(dòng)機(jī)燃油供應(yīng)量，使發(fā)動(dòng)機(jī)的轉(zhuǎn)速始終保持在穩(wěn)定轉(zhuǎn)速以上，不致熄火。由于離合器的接合緊密程度逐漸增大，發(fā)動(dòng)機(jī)經(jīng)傳動(dòng)系傳給驅(qū)動(dòng)車輪的轉(zhuǎn)矩便逐漸地增加。到牽引力足以客服起步阻力時(shí)，攪拌車即從靜止開(kāi)始運(yùn)動(dòng)并逐步加速。因此保證了混凝土罐車能平穩(wěn)起步。

　　After the clutch is installed in the transmission system, after the engine is started and before the mixer is started, the driver first depresses the clutch pedal, disengages the clutch, disengages the engine from the transmission system, puts the transmission into gear, and then gradually releases the clutch pedal to gradually engage the clutch. In the process of gradual engagement of the clutch, the blocked torque of the engine is also gradually increased, so the accelerator pedal should be gradually depressed at the same time, that is, the fuel supply to the engine should be gradually increased, so that the engine speed will always be kept above the minimum stable speed, without stalling. Due to the increase of clutch engagement, the torque transmitted by the engine to the driving wheel through the transmission system will gradually increase. When the traction force is enough to overcome the starting resistance, the mixer starts to move from static and accelerates gradually. Therefore, the concrete tank truck can start smoothly.