Singer 1640 - Page 27

tension.
Set
Stitch Length
Dial
(A
Fig.
35)
to
buttonhole
symbol,
and Stitch
Width
Dial
(B
Fig.
35)
to Button
Hole
Symbol..
.
Mark
fabric,
with
pencil
or
tailor’s
chalk,
center
line
of
buttonhole
and
length of
the
buttonhole
desired,
3/8”-1/4”
lonaer
than
ourside
diameter
of
the
button.
.
Place
fabric
under
buttonhole
foot
with
center
line
marked
on
fabric
in
center of
buttonhole
foot.
6
Turn
Stitch
Selector
(C)
to marking
No
A
EJ
position
and
start
to
sew
left
side
along
line.
7.
Stop
with
needle
on
left
side
of
stitch
(Step
1,
Fig.
37)
8.
Raise
needle,
and
turn
Stitch
Selector
(C)
to marking
No.
B” “.
Sew
a
few
stitches
to make
bar
tack.
(Step
2).
9.
Turn
the
Stitch
Selector
(C)
to marking
No.
C
“Li”
Sew
the
right
side.
of
the
buttonhole
guiding
fabric
so machine
sews
parallel
to
the
left
side
(Step
3).
io.
Turn
Stitch
Selector
(C)
to
marking
No.
B
“‘
Take
a
few
stitches
making
the bar
tack
to close
other
end
of buttonhole.
(Step
4).
11.
Cut
slot
in
center
of
buttonhole
with
seam
ripper.
NOTE:
Make
sure
Stitch
Selector
(C)
is
firmly
positioned
in
either
marking
C
“
I
“,
B ““
or
A “
[
“,
and
always
make
a
practice
button
hole
on
a
scrap
of
the
same
fabric
you
are sewing.
BUTTONHOLES
2.
1
Turn
Hand
Wheel
toward
you
and
raise
needle
to
its
highest
position.
Attach
buttonhole
foot
shown
in Fig.
36.
Turn
Thread
Tension
Dial
clockwise
between
5
and
4
to
slightly
tighten
thread
(STEP
1)
heJ
(STEP
2)
here
(STEP
3)
(STEP
4
—23—
Fig
37