S
Needle
zigzag
reference
line
adjustment
When
the
machine
has
been
disassembled
and
needle
zigzag
parts
have
been
replaced
after
being
used
for
a
long
period
of
time,
perform
the
following
steps
and
then
recheck
the
buttonhole
reference
line
position
and
buttonhole
width adjustments.
1.
Turn
the needle zigzag adjustment screw O and set
the distance from the end of the arm to the edge of
the reference position adjustment arm O to 20 m
when
the
needle
is
set
to
the
needle
bar
down
position on the reference line A side.
slightly left
20
mm
2. Turn the handleand alignthe
feed
camO adjustmentholewiththe rubber stopO sothat the
needle
will
fall
slightly leftof the centerofthe
needle
holewhenthe
needle
isshiftedright
when
sewing
theleftsideofthe
zigzag
(reference
line
A
side).
Next,
remove
therubberstopO and
loosen
theset
screw
0;
move
the
need
lebarO
right
or
left to adjust reference line A position.
sightly right
3. Turn needlezigzagadjustment screw0 and adjust referenceline Bso that the needlewillcome slightlyright of
center in the needle hole when sewing the right side of the zigzag (reference line B).
47-
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