Note: All the above adjustment must be performed when the system is MANUAL controlled and the backward/forward oil cylinder is at –mandrel backward position. When all the adjustment is completed, make the first convolution, when the first convolution is ok, the system can be changed to AUTO. During the forming process, if there is any leakage caused by the movement of the forming head, stop the machine and readjust, otherwise the bellows and sealing will be damaged.