① The suitable length of each worki

① The suitable length of each working unit of the roller leveling machine is 20-30 meters. Within the length of one working unit, the operation of forward vibration and backward static roll should be carried out. Repeat 2 to 3 times, vibrating and leveling. The time interval between processes should not exceed 15 minutes.②The roller compaction level should be 5-20mm higher than the top surface of the template. When it is too high, it should be shoveled, and when it is too low, it should be refilled.③Roller leveling machine should be operated by forward vibration and backward static rolling within one unit length, preferably 2 to 3 times, respectively, until the slurry is flooded. The optimal number of rolling passes should be determined by trial laying.④ When the roller shaft leveling machine is working, someone should handle the level of the material in front of the shaft. When it is too high, it should be removed. If there is a gap under the shaft, it should be repaired.