1. Check whether there is scrape phenomenon with the rotation parts and mixing drum of double shaft concrete mixer double horizontal axles forced concrete mixer Ready-mixed concrete batching plants, and timely adjust it.Henan Daswell Machinery is a professional manufacturer of construction machine for almost 30 years in China. We are dedicated to supplying our customers with best service and products, our major products include:Electric portable concrete mixer,Cement Silo,If you are interested in our products, please contact us freely: sales@daswell.com 2. Eliminate sundries in the mixing drum of double shaft concrete mixing machine. 3. Limit the position of mixing drum before stating your double shaft concrete mixer. 4. The rotation direction of mixing shaft should match with the surface signal of mixing drum. 5. Metal and other sundries in the ready feeding materials should be eliminated clearly. 6. Timing the mixing machine according to mixing time. Be sure to take this behavior in the outage status. 7. Press the start button mobile block making machine, and then the main shaft will drive the stirring spade to work. 8. Concrete mixer will stop automatically when it reaches the setting time.