GBC 5031TS ROLL Instruction Manual page 22

GBC 5031TS
FILM CHARACHTERISTICS
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The film should be taut. A properly adjusted roll of film should not require excessive force to turn by
hand. Film tension should be enough to introduce a minor amount of drag as the film unrolls.
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You should see the rivers and wrinkles disappear as the film travels over the heat shoes.
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Insufficient tension causes wrinkles.
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Too much tension causes stretching (necking).
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Uneven tension between the top and bottom rolls creates curl.
Too much upper tension (as the product is fed into the rollers) creates upward curl.
Too much lower tension (as the product is fed into the rollers) causes downward curl.
The 5031TS laminators are equipped with external tension knobs (see illustration) located on the right side
of the film supply shafts. Turning the knobs clockwise increases the tension, while turning them
counterclockwise decreases the tension.
Laminate some test samples and trim to the edge of the product to check for tension. Adjust further if
necessary.
Tips on Film Tension:
1. Generally, 5 and 10 mil films require more tension.
2. As the film roll becomes smaller, the tension increases because the weight of the film roll lessens, so
the tension should be decreased as the roll becomes smaller.
3. Film tension should be checked occasionally to assure that the adjustment is correct.
4. The tension will change whenever the speed is adjusted up or down. When making speed
adjustments, check for proper tension by placing a laminated sheet on a flat surface and check for
curl.
CLEARING A FILM JAM (WRAP-UP):
Film jams (wrap-ups) may occur if the film is loaded backwards or if the area at which film exits the
equipment is blocked. The film web, when jammed, wraps around the nip or pulls rollers. To clear a jam, it
may be necessary to rotate the rollers in the reverse direction. When pressed, Reverse will cause the
rollers to reverse. To clear jams follow these procedures...
1. Press STOP immediately.
2. Swing out the feeder and remove the safety shield and feed table
3. Cut the top and bottom film webs
4. Grasp the loose ends of the web and pull straight out while holding down REVERSE.
5. Once the jam has cleared the nip rollers, release REVERSE.
6. Re-thread the film following the directions in the section USING A FILM THREADING CARD.
LOADING PAPER ON THE FEED TABLE
Make sure the laminator and feeder are in the STOP mode. The feeder TABLE UP/ TABLE DOWN controls
will not operate manually if the either unit is in RUN.
1. Press TABLE DOWN to lower the feeder table.
2. Remove the rear stops and place out of your way.
3. Slide the side guides to the sides, out of your way.
4. Slide a sheet of paper from the job to be run up to the front of the feeder on the table.
© 2006 General Binding Corporation
OPERATION MANUAL
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