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. 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. 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. 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.