MAY 2019
CMT-130TC Book Trimmer
3-3
3. Book Quality
BQ 3.2 Burr Marks
Description
Burr marks are found on books trimmed with a
knife that has a burred cutting edge. Figure 3-1
illustrates the appearance of burr marks.
Figure 3-1. Burr Marks
Possible Causes
Burrs on knife can occur from improper
knife handling.
Burrs may also occur from cutting hard,
irregular materials, or books with sta-
ples.
Solutions
Replace the knife (REP 4.2 Knife Re-
placement).
BQ 3.3 Jagged Bottom Cover
Description
Books can appear as though the bottom few
sheets and cover were torn apart rather than
sharply cut. Tearing of the bottom sheets and
cover occur when deep score marks develop in
the cut stick. The cover is pushed into the score
mark, folded over and torn.
Figure 3-2. Jagged Cover
Possible Causes
The cut stick may be worn.
The knife may be dull.
Solutions
Rotate or replace the cut stick (REP 4.1
Cut Stick Replacement).
Replace the knife (REP 4.2 Knife Re-
placement).
BQ 3.4 Burr Marks/Jagged Cover
Description
A jagged bottom cover may also accompany
burr marks. A burred knife may not fully cut into
the cut stick. As a result, it will leave a jagged
bottom cover.
Figure 3-3. Burr Marks/Jagged Cover
Possible Causes
The knife is burred, and the cut stick is
worn.
Solutions
Rotate or replace the cut stick (REP 4.1
Cut Stick Replacement).
Replace the knife (REP 4.2 Knife Re-
placement).
Содержание 130TC-A-160000
Страница 10: ...MAY 2019 Introduction x CMT 130TC Book Trimmer NOTES...
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Страница 251: ...MAY 2019 CMT 130TC Book Trimmer 7 15 7 Wiring Data WD 7 14 Long Infeed Schematic 120VAC EE 2985 1...
Страница 252: ...MAY 2019 7 Wiring Data 7 16 CMT 130TC Book Trimmer WD 7 15 Std Infeed Schematic 120VAC EE 2985 1...
Страница 253: ...MAY 2019 CMT 130TC Book Trimmer 7 17 7 Wiring Data WD 7 16 Stacker Schematic 120VAC E 3517...
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Страница 255: ...MAY 2019 CMT 130TC Book Trimmer 7 19 7 Wiring Data WD 7 18 Exit Conv Schematic 120VAC E 3567...
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Страница 281: ...MAY 2019 CMT 130TC Book Trimmer 8 21 8 Installation NOTES...