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c) Setting the darning device
- Remove presser foot
- Attach darning foot
- Lower feed-dog
- Place spacer (1 0 mm) under the darning
foot shank and lower presser foot bar.
-
Turn handwheel until the fixing screw of
the balance piece 1 38 points vertically
upwards.
-
Loosen presser foot bar dog 143 and
move it down until
it
lies on the darning
lever 161.
-
Tighten screw 144.
WARNING: Do not twist presser foot bar
dog.
If set correctly, the distance between
darning foot sole and needle plate is
0.5 mm.
d) Regulating the presser foot pressure
The presser foot pressure can be regulated
with screw 140.
Factory setting
=
1 400 grams at lowest
presser foot position on thin material
(single-ply cretonne).
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