L-6534VW Operation Guide Basic Operations (3) Make sure the tip of the air gun is firmly inserted into the hole in the center of the rewinder axis, pump air into it, and secure the paper core. c Important: Do not supply air when no paper core is installed. Otherwise, the air chuck could be damaged. G Attach the substrate to the paper core. (1) Pull down the substrate to a position where it can be attached to the paper core. 119