Singer 645 - Understanding Machine Controls; Stitch Length and Width Controls

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SELECTION
OF
STITCH:
STITCH
LENGTH
CONTROL
The
stitch
length
control
controls
the
forward
feeding
of
the
fabric
in
ordinary
sewing.
At
0,
the
fabric
does
not
feed
at all.
With
the
control
around
the
red
bar
mark
for
buttonhole,
the
shortest
stitch
is
available.
At
5 is
the
longest
—
about
6
stitches
per
inch
on
ordinary’fabrics
—
but
the
control
may
be
set
at
any
desired
spot
between
0 and
5
for
a
variety
of
length,
except
when
stretch
stitching
triple
backand
forth
stitching),
the
control
should
be
always
at
5.
Turn
the
control
to
the
right
to
shorten
and
to the
left
to
lengthen
the
stitch.
The
stitch
length
number
you
choose
is
indicated
by
the
pointer
above
the
control.
The
stitch
length
in
stretch
stitching
triple
back-and-
forth
stitching)
is
fixed
about
3/64
inch
of
trouble-free
stretch
stitch
length
on
most
kinds
of
fabrics
with
stretch
stitch
control
at
“STRETCH
STITCH”
and
the
stitch
length
control
at
“5”.
When
you
wish
to sew
backward
to
tie
the
threads
at
the
beginning
or end
of
a
seam
in
ordinary
sewing,
press
the
Reverse
Push
Button
as
far
as
it
will
go,
so
that
your
machine
sews
in reverse
at
approximately
the
same
stitch
length
as forward
stitch
length.
The
machine
will
sew
backward
as long
as
the
button
is
held
in.
Cross
reference
table
between
numeral
on
the
control
and
number
of
actual
stitches
per
inch
Numeral
on
the
control
0
Number
of
stitches
per
inch
(approx.)
No
Feeding
30
25
15
8
6
llU
Ill
PUSH
REVERSE
BUTTON
1
2
3
4
5
15