3. Problem: Film jams. (Cont’d.)
Cause: Film not being pulled evenly.
Solution: Ensure the infeed nips are closed.
Cause: Film slipping.
Solution: Check nip wheels and sealing belts
for contamination and clean as
necessary.
Check that the unwind shaft brake
system releases and the parent roll
turns freely.
Cause: Gap in film is too small for air
injector tube.
Solution: Replace the roll of film if the gap is
smaller than 0.56"
Cause: Film waste clogging slitter.
Solution: Remove melted film and waste from
knife area.
4. Problem: No film movement.
Cause: Film is not properly positioned in
machine.
Solution: Thread the film as per the thread-up
diagram label on the side of the
machine. Lightly pull the leading
edge of the film through the
machine, past the slitter and outfeed
nip, while jogging. The film must
be taut before pressing START.
Cause: Film or belts not being pulled.
Solution: Ensure the outfeed nips are closed
completely. The rubber nip rollers
should compress together resulting in
a 0.38" flat spot between them.
Ensure all seal belt idlers turn freely.
Cause: Film slipping.
Solution: Check nip wheels and sealing belts
for contamination and clean as
necessary.
Cause: Gap in film is too small for air
injector tube.
Solution: Replace roll of film.
Cause: Counter wheel not operating.
Solution: Check if counter wheel is against
air injection tube.
Check if wheel traction o-ring is
worn or missing.
Check if flat spring is holding wheel
firmly against air injection tube.
Check if air injection tube is bent,
not allowing counter wheel to make
proper contact.
Check if the proximity sensor is
close enough to the wheel to switch
on and off as the wheel turns.
5. Problem: Poor quality seal or no seals. Cause: Sealing wire broken.
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