攪拌車(chē)的故障有很多種，比如發(fā)動(dòng)機故障、液壓系統故障、電路故障、操作閥故障等等，今天小編就給大家介紹一下混凝土攪拌車(chē)的電路故障，當你的攪拌車(chē)電路出現故障需要維修的時(shí)候，需要注意哪些問(wèn)題呢？

There are many kinds of failures of the mixer truck, such as engine failure, hydraulic system failure, circuit failure, operating valve failure, etc. today, I will introduce the circuit failure of the concrete mixer truck to you. When your mixer truck circuit fails and needs maintenance, what problems should be paid attention to?

先要做的就是斷電，在斷電之前要將點(diǎn)火開(kāi)關(guān)關(guān)閉，同時(shí)還要關(guān)閉用電設備，比如音響等設備，禁止電器設備運行時(shí)突然斷電。

The first thing to do is to cut off the power. Before cutting off the power, turn off the ignition switch and turn off the electrical equipment, such as audio equipment. It is forbidden to cut off the power suddenly when the electrical equipment is running.

具體斷電順序如下：，所以在維修的時(shí)候要拔掉負極，再拔正極，安裝的時(shí)候順序是相反的，先裝正極，后裝負極。

The specific power-off sequence is as follows: safety is the first, so the negative electrode shall be pulled out first and then the positive electrode shall be pulled out during maintenance. The installation sequence is the reverse, and the positive electrode shall be installed first and then the negative electrode.

有些朋友會(huì )問(wèn)：為什么先斷負極呢？

Some friends will ask: why break the negative electrode first?

1. 先拆正極存在燒壞電器元件的風(fēng)險，容易引起電腦板燒毀的損失。在電路的實(shí)際維修過(guò)程中因違反操作規程，損壞電路和把手燒傷的人很多，因為蓄電池正負極短路電流非常大，能瞬間產(chǎn)生高溫。

1. There is a risk of burning the electrical components when removing the positive electrode first, which may easily cause the loss of burning the computer board. During the actual maintenance of the circuit, many people damaged the circuit and burned the handle due to violation of the operating procedures, because the short-circuit current of the positive and negative electrodes of the battery is very large, and high temperature can be generated instantaneously.

2. 如果先拔掉正極，因負極是搭鐵的，也就是正極周?chē)慕饘佘?chē)體都是負極，如果用工具拆卸正極接線(xiàn)時(shí)，工具碰到旁邊的金屬車(chē)體，就會(huì )造成蓄電池正負極短路。

2. If the positive electrode is unplugged first, because the negative electrode is grounded, that is, the metal car body around the positive electrode is negative. If the tool touches the metal car body next to the positive electrode wiring when the tool is used to remove the positive electrode wiring, the positive and negative electrodes of the battery will be short circuited.

3. 如果先拔掉負極，因負極周?chē)慕饘佘?chē)體與負極是連通的，即使工具碰到也不會(huì )產(chǎn)生什么壞的結果，當負極拔掉后已經(jīng)斷電，再去拔正極就不會(huì )有什么危險了。

3. If you unplug the negative electrode first, because the metal body around the negative electrode is connected with the negative electrode, even if the tool touches it, it will not produce any bad results. When the negative electrode is unplugged and the power has been cut off, there will be no danger to unplug the positive electrode.

在這里要注意一點(diǎn)：現行的攪拌車(chē)的蓄電池都是有總開(kāi)關(guān)的，但是原來(lái)的都沒(méi)有，就不好操作；而且如果是危險品運輸車(chē)，比如油罐車(chē)，車(chē)上的行車(chē)記錄儀是不允許斷電的，斷電后行車(chē)記錄儀不能工作，車(chē)主可能就要承擔法律責任了。更多相關(guān)注意事項就來(lái)我們網(wǎng)站http://www.jqeq.cn咨詢(xún)看看吧。

Here, we should pay attention to one point: the batteries of the current mixer truck are all equipped with a master switch, but the original ones are not, so it is difficult to operate; Moreover, if it is a dangerous goods transport vehicle, such as an oil tanker, the dash cam on the vehicle is not allowed to be powered off. If the dash cam fails to work after power failure, the owner may have to bear legal liabilities. For more information, please visit our website http://www.jqeq.cn Let's consult.