At this point the felt is held by the push boats and it has to be cut by hand in the part between
the two rolls. The felt edge (felt roll side) has to be inserted in the groove (Pos.5 di Fig.4)
that there is on the felt winder roll. Then make a slot on the end part of the old felt and pass
through the string that is attached to the new felt. In this way the old roll and the new one
travel together.
6) Cluctch the air motor. To clutch, rotate the lever (Pos.1 of Fig.5).