There are many places that are easy to be ignored in the maintenance of automatic feeding mixer. Let's take a look at the aspects below.

一、二者之间的自锁系数变小、自锁性能下降。在搅拌车高速行驶时，螺栓螺母很容易松动乃脱落，从而引发行车事故。不要用水冲洗车身，因为夏天气温高，很多司机选择用水冲洗车身，在拿干净的抹布擦拭，但其实车身内部是不能用水来冲洗的。因为驾驶室内地板胶垫的下面可不是“一马平川”，结构上的需要使驾驶室地板胶垫下面的凹槽、通孔很多。

1、 The self-locking coefficient becomes smaller and the self-locking performance decreases. When the mixer is running at high speed, the bolts and nuts are easy to loose or even fall off, which leads to traffic accidents. Don't wash the car body with water. Because of the high temperature in summer, many drivers choose to wash the car body with water and wipe it with a clean cloth. However, the interior of the car body can't be washed with water. Because the bottom of the floor mat in the cab is not flat, there are many grooves and through holes under the floor mat in the cab due to the need of structure.

用水冲洗后，要么沉积在凹槽内不易干燥，要么从通孔处流到变速箱等部件上产生锈蚀。尤其是密封性能较好的轿车不能用水直接冲洗车身内部。

After washing with water, either it is deposited in the groove and not easy to dry, or it flows from the through hole to the gearbox and other parts to produce corrosion. Especially for cars with good sealing performance, the interior of the car body cannot be washed directly with water.

正确的方法是用湿抹布擦拭，但要避免积水。不同的冷却液不要混合使用不同的冷却液其化学性能可能相差悬殊，比如对黑色金属有用的防腐剂，却常常对铝制品有腐蚀作用;而适用于铝台金的防腐剂则对铁合金有害。由于不同的冷却液所用的防腐剂不同，所以不能混合使用。

The correct method is to use a wet cloth to wipe, but to avoid water. Do not mix different coolants. The chemical properties of different coolants may vary greatly. For example, preservatives are useful for ferrous metals, but they often corrode aluminum products; However, the preservatives suitable for aluminum alloy are harmful to ferroalloy. Due to the different preservatives used in different coolant, it can not be mixed.

二、启动时不要踩油门：启动搅拌车发动机前踩几脚油门，是许多搅拌车驾驶员的习惯，尤其是在冬季冷车启动时。装有电控喷油装置的搅拌车发动机与普通化油器式发动机不同，它的喷油控制装置能根据搅拌车发动机的温度、工况自动调整供油量，使搅拌车发动机顺利启动，即在冷车启动时，喷油控制装置能自动增加供油量。所以，搅拌车发动机启动时，没有必要踩油门，更不要在启动前连续急踩，否则反而使搅拌车发动机启动不好。

2、 Don't step on the accelerator when starting: it's the habit of many mixer drivers to step on the accelerator before starting the mixer engine, especially when it's cold in winter. The mixer engine equipped with electronic control fuel injection device is different from the ordinary carburetor engine. Its fuel injection control device can automatically adjust the fuel supply amount according to the temperature and working condition of the mixer engine, so that the mixer engine can start smoothly. That is to say, the fuel injection control device can automatically increase the fuel supply amount during the cold start. Therefore, there is no need to step on the accelerator when the mixer engine starts, let alone continuously step on it before starting, otherwise, the mixer engine will not start well.

三、不要给自动上料搅拌车的轮胎螺栓螺母涂油在车轮维修中，少数司机为了防止搅拌车的车轮上螺栓螺母生锈，安装时别出心裁地将螺栓螺母都涂上润滑油，殊不知这种做法不仅错误，而且给搅拌车行车带来的隐患。螺栓和螺母拧紧后，相互间具有自锁的特性。

3、 Don't oil the wheel bolts and nuts of the automatic feeding mixer. In wheel maintenance, in order to prevent the wheel bolts and nuts of the mixer from rusting, a few drivers apply lubricating oil on the bolts and nuts with ingenuity during installation. However, this practice is not only wrong, but also brings hidden danger to the driving safety of the mixer. After the bolt and nut are tightened, they are self-locking.