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.

潤滑不良由于新裝配的零部件的配合間隙較小，并且由于裝配等原因，很難保證配合間隙的均勻性，潤滑油（脂）不易在摩擦表面形成均勻的油膜以阻止磨損。從而降低潤滑效能，造成機件的早期異常磨損。嚴重時會造成精密配合的摩擦表面劃傷或咬合現象，導致故障的發生。

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.

磨損速度快由于新機器零部件加工、裝配和調整等因素的影響，其摩擦表面粗糙，配合面接觸面積小，表面的承壓狀況不均。機器在運行過程中，零件表面的凹凸部分相互嵌合摩擦，磨落下來的金屬碎屑又作為磨料繼續參與摩擦，更加速了零件配合表面的磨損。因此，磨合期內容易造成零部件（特別是配合表面）的磨損，磨損速度快。這時，如果超負荷作業，則可能導致零部件的損壞，產生早期故障。

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.

發生松動新加工裝配的零部件，存在幾何形狀和配合尺寸的偏差，在使用初期，由于受到沖擊、振動等交變負荷，以及受熱、變形等因素的影響，加上磨損過快等原因，容易使原來緊固的零部件產生松動。

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.

發生滲漏現象由于機件的松動、振動合機器受熱的影響，機器的密封面以及管接頭登出會出現滲漏現象，部分鑄造、加工等缺陷在裝配調試時難于發現，但由于作業過程中的振動、沖擊作用，這種缺陷就被暴露出來，表現為漏（滲）油（水），因此，磨合期容易出現滲漏現象。

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.

自動攪拌車主要使用在工程建筑中，其作業環境一般都比較差，比如灰塵大、道路高低不平等等，在這樣惡劣的環境中，對攪拌車的影響是非常大的，比如攪拌車的輪胎，道路的高低不平會加速輪胎的磨損，有些攪拌車司機反映說，輪胎的偏磨比較嚴重，尤其是前輪。

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.

很多人認為攪拌車輪胎的偏磨是車輪的外傾角超差造成的，但其實輪胎的偏磨在很大程度上是因前束值的超差造成的，根據從事四輪定位工作多年的技術人員總結的經驗和大量的定位檢測數據分析認為：正確的前束值完全可以有效的避免輪胎的偏磨。

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.

還有一種輪胎偏磨是轉向輪總轉角的超差、車輪外傾角和主銷傾角的不正確導致的，攪拌車在實際的行駛中，大多數是直線行駛的，轉彎、倒車和掉頭時的總轉角的時間不多，所以由此引發的偏磨比較少。

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.

自動攪拌車輪胎與地面接觸時的柔韌性和隨意變形的特性很大程度上抵消了因車輪外傾角可能造成的輪胎偏磨，即便是高壓輪胎超差的車輪外傾角對輪胎的磨損影響也不大，有很多的廂式貨車在空車的時候為了減少輪胎與地面的摩擦、降低滾動阻力而專門設計了可變后輪外傾角。

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.

自動攪拌車的輪胎還是很重要的，平時要多注意輪胎的偏磨問題，做好攪拌車輪胎的保養。

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.