1. Daswell drum concrete mixer is suitable for the environment temperature from 4℃ to 5℃ and the relative humidity should be smaller than 90%. The optimum temperature is constant temperature and drum concrete mixer should be placed in the ventilated twin shafts concrete mixer price, dry and clean place.Henan Daswell Machinery is a professional manufacturer of mining machine for almost 30 years in China. We are dedicated to supplying our customers with best service and products, our major products include:mobile brick making machine,JS series concrete mixer,twin shaft concrete mixer,If you are interested in our products, please contact us freely: sales@daswell.com 2. It is forbidden to touch the drum concrete mixer for under age children. 3. The lubrication of reducer adopts oil immersed type. The oil reserves should be above the oil line and the oil also should keep clean. If the drum concrete mixer is used frequently, change the oil every three months. Meanwhile, reducer should be removed and cleaned. 4. The electric control components should be clean and sensitive. Repair it timely if there are faults. 5. After using the drum concrete mixer, pour out the remaining materials and clean it up. If stopping using it for a long time, clean the drum concrete mix and cover it with tarpaulin. 6. The hopper should be removed lightly, installed steadily and put down gently. 7. Check the power shaft cement batching plant mobile block making machine, transmission, and reducer of drum concrete mixer gently whether every component is flexible. If there are faults, repair it in time to ensure the normal operation of drum concrete mixer.