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In the process of the daily use of mobile concrete mixer, except paying attention to the maintenance work of mobile concrete mixer, the most important thing is the working requirements and trainings for the operating personnel of concrete mixer. Because the operating personnel is the persons who is in contact with the concrete mixer for the longest time, operating personnel should have a good knowledge of concrete mixer. 1. Eliminate the slurry and scaling of mobile concrete mixer machine on every part. Clean the concrete and oil accumulation on the whole surface mixing tank in time. 2. After operating the mini concrete mixer for a whole day, operating personnel should eliminate the collecting dust inside and outside the mixing drum and the residue on the discharging mouth, mixing shaft and discharging door. Use water to wash these parts. If necessary, add some water and stones into mixing drum to mix for ten minutes and then pour them out. 3. Use water to wash the truck, additive box and the supply system. These are what users should do after concrete mixer operates for one day. In the winter, after using concrete mixer sicoma twin shaft mixer, release the water and remaining materials in the water pump, additive pump, water tank and additive tank. In the cold winter, in order to avoid damaging the pump and pipeline Cement Silo, start the water pump and additive pump and make it run for about one minute.