Duerkopp Adler 171 Instruction Manual page 19

When sewing the condensed stitches at the seam beginning and the
seam end the puller is automatically adapted to the bottom feed length.
Hints:
With the hand lever 4 the puller can be swivelled out of the entire
sewing area, e.g. if you want to sew with the bottom feed only.
Actuate the lower push-button 3 at the arm head to lift the puller for
sewing of radii or corners.
The fabric deflector 8 serves also as cutting knife for the thread chain
(only in case of machines without thread trimmer).
The contact pressure of the puller can be adapted to the fabric. Loosen
screw 7 and adjust cylinder 5:
towards A = less pressure
towards B = more pressure
6.6.2 Adjusting the condensed stitches
With the setting wheel 10 it is possible to select the desired condensed
GB
stitches.
More condensed stitches: turn the setting wheel 10 in clockwise
direction.
Less condensed stitches: turn the setting wheel 10 counter-clockwise.
10
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