The driving device is used to drive the concrete storage tank to rotate. It is composed of power take-off, universal axis, hydraulic pump, hydraulic motor, control valve, hydraulic oil tank and cooling device. If this part stops working due to fault, the self feeding concrete mixer will not be able to rotate, which will lead to the scrapping of the concrete in the truck, and even make the whole tank of concrete coagulate in the tank, resulting in the scrapping of the automatic feeding concrete mixer. Therefore, whether the driving device is reliable or not is a problem that must be attached great importance to in use. In order to ensure the integrity and reliability of the drive device, the following maintenance work should be done well:
                     

　　1.万向转动部分是故障多发部位，应按时加注润滑脂，并经常检查磨损情况，及时修理更换。车队应有备用的万向轴总成，以保证一旦发生故障能在几十分钟内恢复工作。

　　1. The universal rotating part is a fault prone part, so grease shall be added on time, and the wear condition shall be checked regularly, and the repair and replacement shall be carried out in time. The team should have spare cardan shaft assembly to ensure that it can resume work in dozens of minutes in case of failure.

　　2.保证液压油清洁。自动上料混凝土搅拌车工作环境恶劣，一定要防止污水泥沙进入液压系统。液压油要按使用手册要求定期更换。一旦检查时发现液压油中混入水或泥沙，就要立即停机清洗液压系统、更换液压油。

　　2. Ensure that the hydraulic oil is clean. The working environment of automatic loading concrete mixer is bad, so it is necessary to prevent dirty cement sand from entering the hydraulic system. The hydraulic oil should be replaced regularly according to the requirements of the manual. Once it is found that the hydraulic oil is mixed with water or sediment, it is necessary to stop the machine immediately to clean the hydraulic system and replace the hydraulic oil.

　　3.保证液压油冷却装置有效。要定时清理液压油散热器，避免散热器被水泥堵塞，检查散热器电动风扇运转是否正常，防止液压油温度超标。液压部分只要保证液压油清洁，一般故障不多；但生产厂家不同，使用寿命则不一样。

　　3. Ensure that the hydraulic oil cooling device is effective. The hydraulic oil radiator should be cleaned regularly to prevent the radiator from being blocked by cement, and check whether the electric fan of radiator operates normally to prevent the temperature of hydraulic oil exceeding the standard. As long as the hydraulic oil is clean, there are not many faults in the hydraulic part, but the service life varies with the manufacturer.