1. After concrete mixer starts belt type concrete mixing plants, feeding should be taken when the mixing drum rotation reaches normal speed, and add water timely after feeding. The addition of new materials should be taken after discharging the original concrete. It is forbidden to stop it when mixing concrete and overloading, except reverse discharging.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:ready mix concrete plant manufacturers,ready mix plants for sale,If you are interested in our products, please contact us freely: sales@daswell.com 2. It is forbidden to fall the stone into the mixing part when operating concrete mixer to prevent the rotating part from blocking. After the hopper tips, it is prohibited to stand or go through under the hopper to avoid the accident. If it is necessary to maintain or clean theconcrete mixer Mobile Hollow Brick Making Machine, stop the concrete mixer and lock the hopper by insurance chain firmly. 3. When the concrete mixer is working, if there are some faults that the concrete mixer can not work JS series concrete mixer, cut down the power supply immediately and clean out the concrete mixer and then you can repair the concrete mixer. 4. After concrete mixer works, clean the concrete mixer comprehensively. If the operator must enter the mixing drum to clean it, cut down the power supply, remove the fuse and lock the switch box.