Challenge TITAN 265 XG, Руководство оператора

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7.0 Knife Installation/Changing
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The knife hesitates or stalls while making a cut.
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The sheets are not all cut to the same length (usually the top few sheets are longer than the
rest of the sheets - this is sometimes called “draw”).
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Cut marks appear on the cut face of the paper.
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The profile of the cut (side view) is not perpendicular to the table.
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The cut does not appear straight when viewed from the top.
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The knife makes a “rougher” sound as it passes through paper.
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Nicks are visible on the cutting edge of the knife.
7.3.2 Cutting Stick
A worn cutting stick can affect the cut quality of the bottom sheets. When this happens, the cut stick
can be rotated. Usually, the stick should be rotated one or two times between knife sharpenings.
There are 8 possible cut stick positions. The stick can be rotated 4 times, and then turned end to
end, and rotated 4 times again.
7.3.3 Bevel Angle
Challenge recommends that bevel angles for the Titan 265 knives be in the range of 21° to 23°. In
general, a 21° bevel angle will provide better cut quality when cutting soft paper (such as newsprint),
recycled paper, or bound books. However, 21° angle knives can become dull sooner than 23° knives,
which results in shorter knife blade life. A knife with a 23° bevel angle, on the other hand, will not dull
as easily, and can provide satisfactory results when cutting most types of paper. Knives shipped with
the Titan 265 from the factory have a bevel angle of 23°.
7.3.4 Helpful Suggestions
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If your establishment is large enough to purchase more than one set of knives, have one set
beveled at 21° and the other at 23°. Note: A set consists of 3 knives: one in the machine,
one as a back up, and one at the grinder.
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If the machine seems to strain but the cut quality is still good, reduce the pile height. You
may also carefully apply glycerin to the bevel when cutting hard, coated paper. Tie a cloth to
the end of a stick; dip the stick in glycerin, and apply. Never apply by hand! In lieu of
glycerin you may lightly rub white bar soap along the bevel. Lubrication will prolong the life of
your machine and reduce maintenance.
7.3.5 Knife Care
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To prevent corrosion, knives are coated with light oil. It should be REMOVED WITH CARE.
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While removing or installing a knife, be careful not to allow the edge to bump against the
machine. Nicks will result.
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If a knife bolt is damaged, replace it.