Operators Manual
ALS 321/421
Release 2/08
Page 15
Labelling
Figure 6 Unwind Unit at the ALS 321 Euro
Unwind Unit ALS 321/421
By means of the knurled screw the collapsible key can be moved further in or out for clamping
and releasing the label roll.
Figure 7 Unwind Unit at the ALS 321/421
The material brush has to be positioned in a way, that the material is kept tight. From time to
time, it is recommended to reverse the mounting of the brush while you are loading a new label
roll. Mount the label web through the label sensor. Remove the labels until about 50 cm of the
backing material is exposed. Thread this backing material around the drive and deviator roller.
Fold the end of the backing material back approximately 15 mm and insert the leading edge
into the slot of the rewind mandrel. Turn the lever, the rewind expands, the slot is closed and
the backing material is clamped in the slot. Wind the mandrel a few times to take up any back-
ing material slack between the deviator roller and the rewind mandrel.
