Auto mixer accessories are also an important part of the mixer. If you don't know enough about the structure and performance of the machine (especially the new operator) due to mistakes in the operation process, it is easy to cause faults and even mechanical accidents.

润滑不良由于新装配的零部件的配合间隙较小，并且由于装配等原因，很难保证配合间隙的均匀性，润滑油（脂）不易在摩擦表面形成均匀的油膜以阻止磨损。从而降低润滑效能，造成机件的早期异常磨损。严重时会造成精密配合的摩擦表面划伤或咬合现象，导致故障的发生。

Poor lubrication due to the small fit clearance of newly assembled parts, and due to assembly and other reasons, it is difficult to ensure the uniformity of fit clearance. Lubricating oil (grease) is not easy to form a uniform oil film on the friction surface to prevent wear. So as to reduce the lubrication efficiency and cause the early abnormal wear of parts. In severe cases, it will cause scratch or bite on the friction surface of precision fit, resulting in failure.

磨损速度快由于新机器零部件加工、装配和调整等因素的影响，其摩擦表面粗糙，配合面接触面积小，表面的承压状况不均。机器在运行过程中，零件表面的凹凸部分相互嵌合摩擦，磨落下来的金属碎屑又作为磨料继续参与摩擦，更加速了零件配合表面的磨损。因此，磨合期内容易造成零部件（特别是配合表面）的磨损，磨损速度快。这时，如果超负荷作业，则可能导致零部件的损坏，产生早期故障。

The wear speed is fast. Due to the influence of processing, assembly and adjustment of new machine parts, the friction surface is rough, the contact area of mating surface is small, and the pressure bearing condition of the surface is uneven. During the operation of the machine, the concave convex parts of the part surface are embedded and rubbed with each other, and the worn metal debris continues to participate in the friction as abrasive, which accelerates the wear of the fitting surface of the part. Therefore, during the running in period, it is easy to cause the wear of parts (especially the mating surface), and the wear speed is fast. At this time, if overloaded operation, it may lead to damage of parts and early failure.

发生松动新加工装配的零部件，存在几何形状和配合尺寸的偏差，在使用初期，由于受到冲击、振动等交变负荷，以及受热、变形等因素的影响，加上磨损过快等原因，容易使原来紧固的零部件产生松动。

The newly processed and assembled parts are subject to geometric shape and fit size deviation. At the initial stage of use, due to the impact, vibration and other alternating loads, as well as the influence of heating, deformation and other factors, coupled with the rapid wear and other reasons, it is easy to loosen the originally fastened parts.

发生渗漏现象由于机件的松动、振动合机器受热的影响，机器的密封面以及管接头登出会出现渗漏现象，部分铸造、加工等缺陷在装配调试时难于发现，但由于作业过程中的振动、冲击作用，这种缺陷就被暴露出来，表现为漏（渗）油（水），因此，磨合期容易出现渗漏现象。

Leakage occurs. Due to the looseness of parts, vibration and the influence of machine heating, leakage will occur on the sealing surface and pipe joints of the machine. Some casting, processing and other defects are difficult to find during assembly and commissioning. However, due to the vibration and impact during operation, such defects are exposed, manifested as oil (water) leakage. Therefore, Leakage is easy to occur during running in period.

自动搅拌车主要使用在工程建筑中，其作业环境一般都比较差，比如灰尘大、道路高低不平等等，在这样恶劣的环境中，对搅拌车的影响是非常大的，比如搅拌车的轮胎，道路的高低不平会加速轮胎的磨损，有些搅拌车司机反映说，轮胎的偏磨比较严重，尤其是前轮。

The automatic mixer truck is mainly used in engineering buildings, and its working environment is generally poor, such as heavy dust, uneven roads, etc. in such a harsh environment, the impact on the mixer truck is very great, such as the tires of the mixer truck. The uneven roads will accelerate the wear of the tires. Some mixer truck drivers report that the eccentric wear of the tires is serious, Especially the front wheels.

很多人认为搅拌车轮胎的偏磨是车轮的外倾角超差造成的，但其实轮胎的偏磨在很大程度上是因前束值的超差造成的，根据从事四轮定位工作多年的技术人员总结的经验和大量的定位检测数据分析认为：正确的前束值完全可以有效的避免轮胎的偏磨。

Many people believe that the eccentric wear of mixer tire is caused by the out of tolerance of wheel camber, but in fact, the eccentric wear of tire is largely caused by the out of tolerance of toe in value. According to the experience summarized by technicians engaged in four-wheel alignment for many years and a large number of positioning detection data, it is considered that the correct toe in value can effectively avoid the eccentric wear of tire.

还有一种轮胎偏磨是转向轮总转角的超差、车轮外倾角和主销倾角的不正确导致的，搅拌车在实际的行驶中，大多数是直线行驶的，转弯、倒车和掉头时的总转角的时间不多，所以由此引发的偏磨比较少。

Another kind of tire eccentric wear is caused by the out of tolerance of the total angle of the steering wheel and the incorrect camber angle and kingpin angle. In the actual driving of the mixer, most of them travel in a straight line, and the total angle of turning, reversing and turning is not much, so the resulting eccentric wear is relatively small.

自动搅拌车轮胎与地面接触时的柔韧性和随意变形的特性很大程度上抵消了因车轮外倾角可能造成的轮胎偏磨，即便是高压轮胎超差的车轮外倾角对轮胎的磨损影响也不大，有很多的厢式货车在空车的时候为了减少轮胎与地面的摩擦、降低滚动阻力而专门设计了可变后轮外倾角。

The flexibility and random deformation of the automatic mixer tire when contacting the ground largely offset the tire eccentric wear caused by the camber angle. Even the camber angle of the high-pressure tire has little effect on the tire wear. There are many Van trucks when empty in order to reduce the friction between the tire and the ground Variable rear wheel camber is specially designed to reduce rolling resistance.

自动搅拌车的轮胎还是很重要的，平时要多注意轮胎的偏磨问题，做好搅拌车轮胎的保养。

The tires of automatic mixer are still very important. Usually, pay more attention to the eccentric wear of tires and do a good job in the maintenance of mixer tires.