Wulftec / M.J. Maillis Group
Page 13 of 36
Version 1.7.1 /November 2014
Film loading and threading (cont’d)
WARNING! Before threading the film, press on the dancer bar once door is
opened to make sure the pre-stretch rollers are not turning. If they are, contact a
Wulftec Customer Service representative immediately. Do not touch the carriage.
Inadvertent movement of the dancer bar will cause the rollers to turn abruptly,
creating the possibility of serious injury. The operator must respect the film
loading and threading instructions AT ALL TIMES!
NOTE: If the film web breaks during the cycle, reattach the film, or if necessary,
rethread the film following the instructions. It is not necessary to reset the
machine. If E-stop is activated, the pre-stretch and the clamp will not work. If the
E-Stop is pressed, pull it.
The machines equipped with a standard carriage are programmed to stop when a
lack of film occurs. In a wrap cycle during which the rotation speed is higher
than 10Hz and the pre-stretch motor stops working for more than three (3)
seconds, the machine will fall into a stop state. The cause is either a stop a lack
of film or a film break. Follow the film threading procedure (previous pages) to
rethread the film to start/restart a cycle.
The machines are equipped with a proximity
sensor used to determine if the carriage door is
closed properly. This sensor can be seen
through the hole in the carriage cover. When
the light is lit, it indicates that the carriage door
is closed properly. If the door is open, the pre-
stretch motor will stop working or if the
machine is running a wrapping cycle, it will stop by itself rapidly. If
the light is not lit, make sure the door is properly closed. The
machine is ready for a start cycle.
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