AL-MEISTER ALM3220 Instruction Manual <Rev.2>
Page 22 of 50
Tension controllers (lower)
Tension controllers (upper)
4. INITIAL THREADING OF THE ALM3220 (cont’d)
16.
DOUBLE SIDE LAMINATION ONLY:
Adjustment
of tension controllers:
There are four (4) tension controllers. Two for the
lower film roll and two for the upper film roll. The
purpose of the tension controllers is to apply
resistance or "drag" on the film rolls which makes
the film lay flat on the heat chambers and thereby
eliminates creases and bubbles in the lamination. It
is recommended that the right side and left side
controllers on each roll be adjusted with the same
amount of tension. The top pair of controllers versus
the bottom pair of controllers may vary slightly only
to eliminate "curl" in the
laminated piece. If the laminated piece curls upward
loosen the two upper controllers or tighten the two bottom controllers. If the exiting laminated piece
curls downward, do the opposite and make the lower controllers looser than the upper controllers.
NOTE: Single sided lamination:
Do not apply any tension to the upper or lower controllers. Leave all 4
thumbscrews loose.
17. When the laminator has "warmed-up"
and the READY light is on, use the manual
MOVE switch to run samples of film out
of the laminator. Observe these samples
for clarity and freedom from wrinkles.
When all of the bubbles, wrinkles and
creases disappear from the lamination
and the film is lying flat on the heat shoes
the machine is ready to be run in
“automatic mode”. If these lamination
defects are not disappearing in a
reasonable amount of film footage (3 or 4
feet), slightly increase tension on the
controllers (equally). See Step 18.
18. Test for film curl. This is important. If film will not exit the machine in “manual mode” in a “flat” state
there may be jams and wraparounds occurring when the machine is run in “automatic mode”.
If not already done, push the manual MOVE switch forward until about one (1) foot of film has exited
the laminator. Then, using a pair of scissors cut the laminated film at a point approximately three (3)
inches out from the laminator. Be sure to identify the upper side of the film from the lower side of the
film.