OPERATION
13| Adjustment of feed dog height
Height of feed dog and pressure of presser foot
should
be adjusted for individual fabric(s)
with
the
following
cautions:
♦
Fabric will be damaged if
the
feed dog
extends
too
high, or pressure of presser
foot
is
too
large.
♦
Even stitch length
cannot
be assured if the feed
dog is too low or pressure of presser foot is
too
small.
♦
Feed
dog height
should
be measured at
the
point
where
the
needle
is
at
the
top
position.
For
light
fabrics
For
usual
fabrics
For
heavy
fabrics
Apprdx.
0.8mm
from
throat
plate
Approx.
1.0mm
from
throat
plate
Approx.
1.2mm
from
throat
plate
Adjustment
procedure
(1)
Lean
the
machine
head
backward.
(2)
Turn
the
handwheel
by
hand
and
stop
when
the
feed
dog
rises
to
the
maximum
height.
(3)
Loosen
the
feed
bar
set
screw.
(4)
Vertically
move
the
feed
bar
(in
the
direc
tion
indicated
by
arrow
in
the
figure)
to
adjust
it
to
adequate
height.
(5)
After
the
adjustment,
tighten
the
feed
bar
set
screw.
The
feed
dog
height
is
factory-adjusted
to
1
mm.
-
11
-
!
0.8mm
1.0mm
2mm
Set
screw
Feed
bar
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