1. After unloading at the construction site, the feeding hopper, discharging hopper, discharging chute, etc. shall be washed immediately with the hose attached to the loading mixer to remove the sludge and concrete adhered to the body. On the way back to the mixing plant, 150-200l water should be injected into the mixing drum to clean the concrete residue bonded on the wall and blades of the drum.

2、每天工作结束后，司机应负责向搅拌筒内注入清水并高速（14—18转/分）旋转5—10分钟，然后将水排去，以保障筒内清洁。用高压水清洗搅拌筒各个部分时，应注意避开仪表及操纵杆等部位。压力水喷嘴与车身油漆表面间的距离不得小于40厘米。

2. At the end of each day's work, the driver shall be responsible for injecting clean water into the mixing drum and rotating at high speed (14-18 RPM) for 5-10 minutes, and then draining the water to ensure the cleanness of the drum. When using high-pressure water to clean each part of the mixing drum, attention should be paid to avoid the instrument and control rod. The distance between the pressure water nozzle and the body paint surface shall not be less than 40 cm.

3、搅拌筒内外积污及残存的混凝土渣块时，以及在机修人员进入筒内进行检修和焊补作业时，需先关闭自上料搅拌车发动机，使搅拌筒完全停止转动。在机修人员进入筒内工作期间，应该保障拌筒内通风良好，空气新鲜，无可然气体及有害灰尘，氧气供应充足。在筒内使用电动工具操作时，操作人员应该有良好的绝缘保护。

3. When removing the dirt and residual concrete slag inside and outside the mixing drum, and when the maintenance personnel enter the drum for repair and welding, the engine of the self feeding mixing truck should be shut down to stop the mixing drum completely. During the working period, the maintenance personnel should ensure that the mixing cylinder is well ventilated, the air is fresh, there is no natural gas and harmful dust, and the oxygen supply is sufficient. When using electric tools in the cylinder, operators should have good insulation protection.

4、工作时，不得将手伸入旋转的搅拌筒内，严禁将手伸入主卸料溜槽和加长卸料溜槽的连接部位自动，工作人员如何规范操作自上料搅拌车以免发生事故。

4. When working, it is not allowed to put your hand into the rotating mixing drum. It is strictly forbidden to put your hand into the connecting part of the main discharge chute and the extended discharge chute. How to standardize the operation of the self loading mixer truck to avoid accidents.