Setting - Duerkopp Adler 579 Service Instructions Manual

28.2 Setting

9 10
Caution Risk of Injury!
Set the thread catcher only in the "Safe Stop" position or with the
machine turned off.
Rule and Control
The thread catcher must securely catch the needle thread after the
sewing of a buttonhole.
The thread catcher must position the needle thread in the right lip.
The thread catcher should not collide with the clamping plates.
When the thread catcher is in the base position, the following
conditions must be met:
The clearance from the lower edge of the needle bar guide 1 to the
–
thread catcher 2 must be approx. 2 mm (dimension Y).
The clearance from the front edge of the thread catcher 4 to the
–
needle 3 should be approx. 7-8 mm (dimension X).
Laterally, needle 3 and the left edge of the clamp 10 of the thread
–
catcher must lie inline.
Dependent on the thickness of the material used, the lower position
must be set differently. When the thread catcher is lowered, there must
still be a clearance of approx. 3 mm between the lower edge and the
material.
11
When the thread catcher is lowered and run to the front, the hook 10 of
the thread gripper must lie about at the needle center.
Sew a buttonhole.
–
The thread catcher should not collide with the clamping plates
during the sewing cycle.
The thread must be securely caught after the sewing cycle.
Check, if the needle thread was sewn in centered in the right lip.
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1
2
3
4
5
6
7
8
3
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