Singer 1640 - Page 23

Keeping Stitching Straight
Your
machine has
three
aids
to
help
keep
your
stitching straight,
whether stitching
seams
or
doing
decorative
stitching.
1)
Numbered guidelines on
the
right
side
of
needle plate. (Fig.
33)
Numbers indicate
distance, in
eighths
of
an
inch,
from
the
needle.
For
5/8”
seam,
line
up
your
fabric
with
the
numbered
5/8
guideline.
2)
Quilting
attachment
(Page
26)
3)
Cloth
guide
attachment
(Page
26)
Pin
Basting
Place
pins
at
right
angles
to
presser
foot
with
pins
just
nipping
into
fabric
at
stitching
line.
Never
place
pins
on
underside
of
fabric
in
contact
with
fabric
feed
or
so
presser
foot
rides
over
head
of
pin.
(Fig.
34)
STRAIGHT
AND
ZIGZAG
SEWING
For
sewing
straight
stitch
and
zigzag,
Turn
Stitch
Selector
(C
Fig.
35)
at
By
turning
Stitch
Width
Dial
(B
Fig.
35)
clockwise,
the
stitch
width
will
be
in
creased;
and
counter-clockwise
will
be
decreased.
Set
Stitch
Width
Dial
at bottom
indication
mark
for
straight
stitching.
r
pfl!H
==
I
Fig
33
Fig
34
—20—