Before the operation, the operators should start the mixer load operation. The mixing tube should be positive to reverse the material mixer. The reverse operation is for several minutes, and there should be no impact judder and abnormal noise.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:planetary concrete mixer,js concrete mixer,If you are interested in our products, please contact us freely: sales@daswell.com 1 twin shaft concrete mixer, The concrete should be fed into the mixing tube of DMP mixer planetary after reaching normal operating speed. Water should be fed on time. Each addition of mixing materials shall not exceed the rated capacity of the mixer ready mix concrete plant, and should reduce the material viscosity. In addition, feeding order should be a gravel-cement or a sand-cement. 2, Forbid head or hands stretching out between man and the hopper frame. When the SICOMA MPC planetary is operating, anyone cannot touch the tool or load or unload the concrete by hands. 3, Forbid anyone staying or passing in the hopper when the hopper is raised. When needing to repair or clean up the material in the pit under the hopper, bucket elevator shall insert the pin with chains locked. 4, The operation should be observed when the bearing temperature is too high. When the required maintenance is needed, the stirring concrete cylinder should be cleaned and then inspected.