Singer 1640 - Page 31

When
thread
is
tangled
in
the
race
or
dust
gets
into
the
space
between
shuttle
hook
and
shuttle
race,
follow
this
procedure:—
Raise
needle
to
its
highest
position,
open
hook
cover
and
remove
bobbin
case.
Tilt
head
back
on
its
hinges.
2
Release the
levers
(A>
at
both
sides
of
shuttle
race
(Fig.
46)
by
pushing
them
outward,
then
remove
the
front
ring
(C) and
the
shuttle
hook
(D) with
your
fingers
(Fig.
47).
.
With
small
brush
thoroughly
clean
under
feed
dog.
Remove
lint
and
thread
from
all
parts
of
shuttle
and
wipe
with
lightly
oiled
cloth.
4.
After
shuttle
race
and
shuttle
hook
have
been
cleaned,
put
them
back
in
reverse
order.
5.
Snap
levers
(A>
into
place
as
seen
in
Fig.
46.
6.
Put
bobbin
into
case
and
place
case
into
shuttle.
OILING
Your
machine
needs
to
be
oiled
once
every
week
if
used
frequently
and
every
day
if
machine
is
in
continual
use.
If
machine
has
not
been
used
for
a
period
of
time,
oil
before
you
start
sewing.
Place
a
drop
of
best
quality
sewing
machine
oil
at
each
of
the
points
shown
in
the
pictures:
Inside
Face
Plate
—
swing
Face
Plate
open
and
oil
all
moving
parts
at
friction
points.
(Fig.
48>
CLEANiNG
SHUTTLE
HOOK
AND
RACE
Fig
46
C
Fig
47
—‘7—