It is inevitable that the concrete mixer equipment will have some problems in the long-term use. In order to avoid the good performance of the equipment in use, we need to carry out reasonable maintenance on the equipment. What should be paid attention to during equipment maintenance? Here is a brief introduction.

1、搅拌筒：在初次使用到50小时时，要及时检查罐体及其他部位螺栓是否有松动，每天行车前要检查托轮与滚道的润滑，每个月打开一次托轮护罩，清理内部的油污并添加润滑油脂。

1. Mixing drum: when the tank and other parts are used for 50 hours for the first time, timely check whether the bolts of the tank and other parts are loose. Before driving every day, check the lubrication of the supporting wheel and the raceway. Open the supporting wheel shield once a month, clean the internal oil stain and add lubricating grease.

2、液压驱动系统：液压系统是搅拌车的核心系统。为保证搅拌车能正常工作，搅拌罐能运转正常，须在每次车辆发动前检查油路散热器和减速机的液压油位，保证油位指示在视窗范围内。同时要保证它的清洁，不能让灰尘等污染系统液压油，造成系统不能正常工作或损坏。

2. Hydraulic drive system: the hydraulic system is the core system of the mixer. In order to ensure that the mixer truck can work normally and the mixing tank can operate normally, the hydraulic oil level of the oil radiator and reducer must be checked each time before the vehicle is started to ensure that the oil level indication is within the scope of the window. At the same time, make sure it is clean, and do not let dust and other matters pollute the hydraulic oil of the system, causing the system to fail to work normally or be damaged.

3、供水系统：气压供水系统加水量好在水箱的四分之三处，经常检查阀体是否堵塞或是否有工作异常。在有结冰可能的环境中使用时，供水系统须排空存水，防止管路冻裂。

3. Water supply system: air pressure water supply system can add water at three quarters of the water tank. Check the valve body frequently for blockage or abnormal operation. When the water supply system is used in an environment with the possibility of icing, the water storage must be drained to prevent the pipeline from freezing.

不能够给混凝土搅拌车的轮胎栓螺母涂油，不少司机认为给轮胎栓螺母涂润滑油能够避免螺栓螺母生锈，事实上，这种做法是非常危险的，因为它会给搅拌车行车带来隐患。螺栓和螺母拧紧之后本身是有自锁特点的，而润滑油则会让自锁系数下降。搅拌罐运作过程中，螺栓螺母一旦松动就会产生事故。

It is not allowed to oil the tire bolts and nuts of the concrete mixer. Many drivers think that coating the tire bolts and nuts with lubricating oil can prevent the bolts and nuts from rusting. In fact, this practice is very dangerous, because it will bring hidden dangers to the driving of the mixer. Bolts and nuts have self-locking characteristics after being tightened, while lubricating oil will reduce the self-locking coefficient. During the operation of the mixing tank, once the bolts and nuts are loosened, accidents will occur.

不能用水直接冲洗小型混凝土搅拌车车身，搅拌罐车身内部机构是比较复杂的，凹槽、通孔设计比较多，一旦用水冲洗了，那么水分沉积在机身内不容易干燥，就容易使得零部件锈蚀。

It is not allowed to directly wash the body of a small concrete mixer truck with water. The internal mechanism of the mixing tank body is relatively complex, and there are many grooves and through-hole designs. Once washed with water, the moisture deposited in the body is not easy to dry, and the parts are easy to rust.

除了上述这些知识内容外，经常性的检查混凝土搅拌车系统的密封性，拆卸修理后，关键部位要涂螺纹密封胶车辆在行驶时水路系统中各个阀门均应处于关闭状态，以免影响车辆的制动性能。

In addition to the above knowledge, check the tightness of the concrete mixer system frequently. After disassembly and repair, apply thread sealant on key parts. All valves in the waterway system should be closed when the vehicle is running, so as not to affect the braking performance of the vehicle.