Machine; Pattern Dial - National Sewing Machine Co B350 Manual

Straight
Stitching
PATTERN DIAL
STITCH LENGTH
DIAL
STITCH WIDTH DIAL
PRESSER FOOT
NEEDLE PLATE
FEED
DOG
NEEDLE
1
1-4
0
Stralght or Zigzag
Straight or
Zigzag
Up
Single
NOTE:
Use
straight stitch
foot
and
needle
.
plate when
sewing
light or
elastic
type
materials
with
straight stitch.
HOW
TO
STABT
SEWING
1.
Raise needle
to
its
highest
position
and
lift
presser foot.
2.
Place material under presser
foot
and
position
needle 3/8 inch
(10 mm)
from
1
4.
5.
6.
material
edge.
Lower presser
foot.
Pull up
lower
thread
by turning
the
balance
wheel toward
you
and place
both
upper and lower thread to the left.
For
reverse sewing depress
Reverse Sew-
ing
Lever as
far
as
it
will allow.
Reverse
sewing
is
used
where
reinforcement
is
needed.
Release Reverse Sewing Lever and
start
sewing in forward direction.
HOW TO
CHANGE SEWING DIRECTION
1
.
Stop machine
at the turning point while
the needle
is
in the
material.
2.
Raise
the
presser
foot
and turn
the
material
to the
new direction
while
the needle acts
as the axis.
3.
Lower the presser
foot
and start
sewing
in
new direction.
NOTE: ln
case
of twin
needle
sewing, raise
the needle at the
turning point.
HOW
TO
FINISH YOUR
SEWING PROJECT
(REVERSE STITCHING)
Reverse stitching is used
to
reinforce
stitches near the
edge
of
material or wherever reinforcement
is needed.
1.
This
is done by stitching to the
edge
of material
....
then stopping.
2.
Depress Reverse Sewing Lever and stitch
back-
v{rards
for 3/8 inch (10
mm)
from
material
edge,
HOW TO
REMOVE
FINAL
SEWING
FROM
MACHINE
1
.
Stop the machine.
2.
Raise needle
to
its highest
position and
make
sure
thst
the thread take-up
lever is also
in
the
highest
position.
3. Lift
presser
foot
and
pull
out the
material
gently
to the left
side diagonally
4.
Cut both threads on the
thread cutter.
5.
Leave about
4
inches
(10 cm)
of
threads
between
toes
of
the presser
foot to
the
rear while
the
thread take-up lever is
at
the
highest position,
and
you
are
ready
to
sew again without
any
chance
of
thread
pulling out of
the
needle.
HOW
TO
SEW
VERY THIN
MATERIAL
An
underlay
of thin
paper
will
help
to
eliminate
skipped stitches and puckering on very
thin
material.
HOW
TO
GUIDE YOUR MATERIAL
Do
not pull
the
material.
Let the
machine
do
the
work.
Merely guide the
rnaterial with
your
f
ingers
in
front of
the
presser
foot
as shown
in
the
illustra_
tion.'
lf you pull
the
material,
your
needle might either
bend
or break.
.
However,
in
the
case
of
special materials, such
as
tricot,
crepes,
knits, etc., we
recommend
that
you
support
the material both in front
and back
of
the
presser
foot with gentle
tension
as shown in
the
lower
illustration.
-18-
-19-