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大型自动混凝土搅拌机电路维修时注意什么?

所属分类:公司新闻 发布时间:2020-12-22 来源:http://www.sqjituan.cn/ 浏览量:18

大型混凝土搅拌机的故障有很多种,比如发动机故障、液压系统故障、电路故障、操作阀故障等等,大型混凝土搅拌机给大家介绍一下出现故障需要维修的时候,需要注意哪些问题?首先要做的就是断电,在断电之前要将点火开关关闭,同时还要关闭用电设备,比如音响等设备,禁止电器设备运行时突然断电。具体断电顺序如下:安全为先,所以在维修的时候首先要拔掉负极,再拔正极,安装的时候顺序是相反的,先装正极,后装负极。
There are many kinds of failures of large-scale concrete mixer, such as engine failure, hydraulic system fault, circuit fault, operation valve fault, etc. for large-scale concrete mixer, what problems need to be paid attention to when there is a fault and need to be repaired? The first thing to do is to cut off the power. Before the power is cut off, the ignition switch should be turned off. At the same time, the electrical equipment, such as audio equipment, should be turned off. The specific power-off sequence is as follows: safety first, so the negative pole should be pulled out first and then the positive pole should be pulled out during maintenance. The order of installation is the reverse, and the positive pole should be installed first and then the negative pole.
为什么先断负极呢?大型自动混凝土搅拌机在这里给大家解释一下:
Why cut off the negative pole first? Large automatic concrete mixer here to explain:
          自动混凝土搅拌机
1. 先拆正极存在烧坏电器元件的风险,容易引起电脑板烧毁的损失。在电路的实际维修过程中因违反操作规程,损坏电路和把手烧伤的人很多,因为蓄电池正负极短路电流非常大,能瞬间产生高温。
1. Remove the positive electrode first, there is a risk of burning out the electrical components, which is easy to cause the loss of computer board. In the actual maintenance process of the circuit, there are many people who damage the circuit and burn the handle because of violating the operation rules. Because the short-circuit current of the positive and negative electrodes of the battery is very large, it can produce high temperature instantly.
2. 如果先拔掉正极,因负极是搭铁的,也就是正极周围的金属车体都是负极,如果用工具拆卸正极接线时,工具碰到旁边的金属车体,就会造成蓄电池正负极短路。
2. If the positive pole is pulled out first, because the negative pole is grounded, that is, the metal car body around the positive pole is all negative pole. If the tool touches the metal car body nearby when removing the positive connection with a tool, it will cause a short circuit between the positive and negative poles of the battery.
3. 如果先拔掉负极,因负极周围的金属车体与负极是连通的,即使工具碰到也不会产生什么坏的结果,当负极拔掉后已经断电,再去拔正极就不会有什么危险了。
3. If the negative pole is pulled out first, because the metal car body around the negative pole is connected with the negative pole, even if the tool touches it, it will not produce any bad results. When the negative pole is pulled out and the power has been cut off, it will not be dangerous to pull the positive pole again.
大型混凝土搅拌机要注意一点:现行的搅拌车的蓄电池都是有总开关的,但是原来的都没有,就不好操作;而且如果是危险品运输车,比如油罐车,车上的行车记录仪是不允许断电的,断电后行车记录仪不能工作,车主可能就要承担法律责任了,但是如果是危险品运输车,可以在车上放置一个供行车记录仪的备用电源,这样即使电路出现故障,也不至于让行车记录仪断电。
One thing to pay attention to for large-scale concrete mixer: the battery of the current mixer truck is equipped with a master switch, but the original one is not available, so it is not easy to operate; moreover, if it is a dangerous goods transport vehicle, such as an oil tank truck, the vehicle's tachograph is not allowed to be powered off. After the power failure, the vehicle's recorder can not work, the owner may have to bear legal responsibility, but if it is dangerous goods A backup power supply for the tachograph can be placed on the transport vehicle, so that even if the circuit fails, the tachograph will not be cut off.
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