Ledco HD-25, Инструкция по эксплуатации

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If the bottom edge is curling toward you, there is too much tension on the
bottom roller.
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If the bottom edge is curling away from you, there is too much tension on
the top roller.
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If the two bottom corners are curling in opposite directions, supply roll
tension is too high on both top and bottom.
Both novice and experienced operators of laminators tend to use too much
supply roll tension. The best amount of supply roll tension is the least
amount that will do the job.
3. Stop the machine for approximately fifteen seconds to allow the
laminating rollers to leave an indentation on the plastic web, known as a
“dwell line”. Allow this “dwell line” to pass through the pull rollers, so that it
can be observed. The “dwell line” should be approximately 3/8” wide at each
edge of the web of plastic and possibly a little narrower in the center. It
should look similar to this:
If the laminating rollers are not balanced properly the “dwell line” will look
something like this:
Apply additional pressure as required. Repeat the above test to see if the
rolls are balanced properly.
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