Service manual

Revised 11/2010
E-mail: [e-mail]; [e-mail]; website: www.amfreece.com
Phone: [phone]; Fax: [phone]
S-105
1-39
D - MACHINE ADJUSTMENT
12.3. Different types of knives (for straight buttonhole, buttonhole with eye) and cutting steels are
replacable. Loosen the screws
ÑÑ
Ñ
Ñ
Ñ and
Ò Ò
Ò Ò
Ò and their clamps, replace the required part with a new one.
Press those parts against each other and tighten the screws well. Cutting pressure is adjusted when
changing cutting steels, cutting knives, or sewn fabric. Turn the screw
ÓÓ
ÓÓ
Ó clockwise to increase the
pressure. The adjusted pressure must be as small as possible.
12.4. To find out, whether the cut is even, press the lever by hands onto the paper. The imprint must be even
along the whole length. We do not recommend repairing damaged knives. Use a fine sandpaper or a
grinding machine to clean the surface of the cutting steels that are worn out. Any groo
ves on the cut-
ting steel can cause improper cut of fabric or can damage the cutting knife.
WARNING: danger of fast wear-out of the knife or even destruction of mechanism parts. When changing the
knife or the cutting steel, recommend decreasing the pressure of at least three revolutions by the screw
Ó Ó
Ó Ó
Ó and
increase progressively. It is necessary to check the cleanness of the cut. The pressure must not be too big that
the drive belt slips.
Ó
Ó
Ñ
Ò
Min.
Max.