During the transportation of concrete, the mixing drum shall not stop running, and the rotation speed of the tank body shall be kept at 2-3 revolutions per minute to prevent the initial setting and segregation of concrete;

◎當攪拌筒的旋向在正轉與反轉間切換時，須先將操縱手柄放至中間位置，待攪拌筒停轉后，在切換攪拌筒的旋向；

When the rotation direction of the mixing drum is switched between forward rotation and reverse rotation, put the control handle to the middle position first, and then switch the rotation direction of the mixing drum after the mixing drum stops rotating;

◎液壓系統為車輛的關鍵零部件，其工作壓力不得隨意調整，且需要按照使用說明書的要求定期更換液壓油，油品牌號應符合相應的規定；

The hydraulic system is the key part of the vehicle, its working pressure shall not be adjusted at will, and the hydraulic oil shall be changed regularly according to the requirements of the operation manual, and the oil brand number shall meet the corresponding regulations;

◎在自上料混凝土攪拌罐車車輛運輸過程中，所裝載混凝土的方量不能超過允許載重量。超載不僅會造成車輛的加速磨損，且對行駛安全造成嚴重影響；

In the process of transportation of concrete mixer vehicles, the volume of concrete loaded shall not exceed the allowable load. Overload will not only cause accelerated wear of vehicles, but also have a serious impact on driving safety;

◎自上料混凝土攪拌罐車每天工作結束后，司機應負責向攪拌筒內注入清水并高速(12-14轉/分)旋轉5-10分鐘，然后將水排去，以保障筒內清潔。用高壓水清洗攪拌筒各個部分時，應注意避開電器元件和潤滑部位；

After the concrete mixer works every day, the driver shall be responsible for injecting clear water into the mixing drum and rotating it at high speed (12-14 RPM) for 5-10 minutes, and then draining the water to ensure the cleanness of the drum. When cleaning all parts of the mixing drum with high-pressure water, pay attention to avoid electrical components and lubricating parts;

◎應定期檢查減速機與前機架、減速機與罐體、副車架與底盤以及托輪與后機架等部位的連接螺栓松緊情況，務必保持各部位的螺栓擰緊力矩符合規定要求。且需按規定要求在自上料混凝土攪拌罐車潤滑部位添加潤滑脂；

Regularly check the tightness of the connecting bolts between the reducer and the front frame, reducer and tank body, subframe and chassis, as well as between the idler and the rear frame, and make sure that the tightening torque of the bolts at each part meets the requirements. The lubricating grease shall be added to the lubricating part of the concrete mixer according to the specified requirements;

◎自上料混凝土攪拌罐車車輛在露天停放一段時間后，裝料前應先將攪拌筒反轉，使筒內的積水和雜物排出。裝料前，較好先向筒內加注少量水，并加速攪拌后卸出，以防止粘料。裝料時可根據混凝土的塌落度的情況適當的增加罐體轉速。

After the concrete mixer truck is parked in the open air for a period of time, the mixing drum shall be reversed before loading to drain the water and sundries in the drum. Before loading, it is better to fill a small amount of water into the cylinder, and speed up the mixing before unloading to prevent sticking. When loading, the rotation speed of the tank can be increased appropriately according to the slump of the concrete.