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2.
Adjustments
on the sewing machine
2.1
Feed
dog
Please
note
the safety instructions!
2.1.1
Height
of the feed dog
Rule:
When
the
feed
dog
is
in its
topmost
position
it
should
stand
horizontally
above
the
throat
plate,
the
projection
amounting
approximately
to
one
tooth
height.
Control:
- Set zero
stitch
length.
- Move
the feed
dog by the handwheel
to its topmost
position.
Correction:
- Release
the
locking
on
the
crank
G/1.
- Adjust the feed dog bar L/2.
2.1.2 Lifting moment
of the feed dog
Rule:
When
the needle
bar is at its upper
dead point the feed dog should
stand
in its
topmost
position.
Control:
- Set zero
stich
length.
- Move
the needle
bar by the handwheel
to its topmost
position.
- Check
the position
of the feed dog by turning
the handwheel.
Correction:
- Loosen
f/3 screws.
- Loosen
F/3 eccentric.
2.1.3
Position
of the feed dog in the throat
plate
Rule:
With
the
stitch
length
being
set
to its maximum
value,
the
feed
dog,
in front
or
rear
position,
should
be
equidistant
to
the
cutout
of
the
throat
plate
an
laterally
it should
stand
in the middle
(fig.
4).
Control:
- Set maximum
stitch
length.
- Turn
the handwheel.
Correction:
- Loosen k/2 screws.
- Adjust
feed
dog bar L/2.
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