Some specific concrete mixer drivers think that the engine temperature is not low, so the engine thermostat will be automatically removed, and the coolant can only be removed from the night cycle. Because the cooling intensity cannot be adjusted, the engine usually runs at high temperature. This causes wear and increases fuel consumption. In fact, high temperature is harmful to the engine. In order to ensure the service life of the engine, the use case of installing the automatic concrete mixer should be limited to the ambient temperature range.

橡皮筋很好。如果皮带太松，不仅会拉伸并损坏皮带，缩短皮带的使用寿命，而且过大的压力会自动加载并扭曲搅拌器的发电机轴和泵轴，从而损坏搅拌器。为了满足技术要求，一定松开自动混凝土搅拌车的风扇皮带。建议的组装偏差为10-15毫米。

The rubber band is very good. If the belt is too loose, it will not only stretch and damage the belt, shorten the service life of the belt, but also the excessive pressure will automatically load and twist the generator shaft and pump shaft of the agitator, thus damaging the agitator. In order to meet the technical requirements, the fan belt of the automatic concrete mixer must be loosened. The recommended assembly deviation is 10-15mm.

许多驾驶员知道这辆车刚刚起步。同样，如果发动机转速过低，则由于打滑不好会损坏发动机。

Many drivers know that the car is just starting. Similarly, if the engine speed is too low, the engine will be damaged due to poor slip.

但是，大多数人都知道自动混凝土搅拌车中的油泵无法快速润滑光滑表面上的润滑剂，因为由于加热速度较慢，它们将在短时间内处于闲置状态。同时，由于高温燃油雾化不足，燃烧的燃油进入曲轴箱，冲刷了气缸壁上的油膜，并加速了零件的磨损。因此，在自润滑发动机启动后几秒钟的高温条件下，有必要改 善空转加热并提高发动机滑移率。

However, most people know that the pumps in the automatic concrete mixer cannot quickly lubricate the lubricant on the smooth surface, because they will be idle for a short time due to the slow heating speed. At the same time, due to the lack of high temperature fuel atomization, the burning fuel enters the crankcase, washes the oil film on the cylinder wall, and accelerates the wear of parts. Therefore, it is necessary to improve the idling heating and increase the slip ratio of the self-lubricating engine in the high temperature condition of a few seconds after starting.