11/09
CMT 130 Book Trimmer
5-4
All Sheets Not Cut
5.7 All Sheets Not Cut
Description
Bottom sheets are not being cut.
Figure 5-7. Not Cutting Through
Possible Causes
•
The knife is not adjusted to cut deep
enough.
•
The cut stick or cut plates may be worn
out.
Solutions
•
If not cutting deep enough on the face
of the book, adjust the face knife ac-
cording to instructions in section 4.4.2
Knife Depth Adjustment on page 4-5.
•
If not cutting deep enough on the top or
bottom faces of the book, adjust the
side knives according to section 4.4.2
Knife Depth Adjustment on page 4-5.
•
Replace the cut stick or cut plates.
5.8 Book Not Square
Description
The book appears as though it was not cut
square.
Possible Causes
•
The book was allowed to cool with a
twisted binding as shown in Figure 5-8.
When the book is straightened after
trimming, it looks similar to the book
shown in Figure 5-9. This is the most
common cause of out of square, espe-
cially in a stand-alone trimming applica-
tion where the binding has had signifi-
cant time to harden.
•
Cover overhangs the book. The over-
hang reduces the reliability of the
squaring process within the trimmer.
•
Glue was applied past the binding, leav-
ing a knob-like protrusion. The protru-
sion interfered with the trimmer's squar-
ing process.
•
Normal wear has forced the cutting or
transport mechanisms out of square.
Solutions
•
Carefully handle books with soft bind-
ings. Keep twist out of the binding
when storing. Allow bindings to harden
before stacking.
•
Cut cover to fall within the size of the
untrimmed book.
•
Adjust binder such that glue will not be
applied past the end of the binding.
•
If normal wear has forced the cutting or
transport mechanisms out of square, re-
fer the problem to an authorized service
agent (see FX.013, Section 4).
Figure 5-8. Twisted Binding
Figure 5-9. Straightened Binding