Duerkopp Adler 579 Service Instructions Manual page 23

The cutting knife must be set so that the knife cuts into the center of
the sewn buttonhole shape.
Insert the cutting block.
–
Insert a short needle.
–
Insert a piece of paper or cardboard as sewing material.
–
Sew a buttonhole.
–
Check the position of the cut.
–
Correction
Loosen the four screws 1 on the base plate 3.
–
Correct the lateral position of the cutting knife 2 accordingly.
–
Tighten the four screws 1 on the base plate 3.
–
Loosen screw 4.
–
Push the cutting knife 2 to the front or back.
–
As a presetting, move the cutting knife so that the setting
dimension X (center buttonhole eye to the groove in the needle
plate mounting), as listed in the table below, results.
As a fine adjustment, move the cutting knife so that the cutting
knife cuts into the center of the buttonhole shape.
Tighten screw 4.
–
Subclass E-group
-112 579-E101
579-E102
-112 579-E110
579-E111
579-E151
-121 579-E201
579-E202
579-E204
-141 579-E401 L1
579-E403 L1
-141 579-E401 L2
579-E403 L2
-141 579-E401 L3
579-E403 L3
-141 579-E401 L4
579-E403 L4
-141 579-E401 L5
579-E403 L5
-151 579-E501
579-E504
-151 579-E510
579-E511
579-E551
Offset Setting dimension
(Dimension X)
approx. 59 mm
approx. 47 mm
approx. 59 mm
approx. 43 mm
approx. 47 mm
approx. 51 mm
approx. 55 mm
approx. 59 mm
approx. 59 mm
approx. 47 mm
3
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