Singer 645 - Bobbin Case Threading and Placement

THREADING
BOBBIN
CASE
1.
Hold
bobbin
case
be
tweeri
thumb
and
fore
finger
of
left
hand,
so
that
the
slot
in
the
edge
of
the
bobbin
case
is
on
top.
Take
the
bobbin
between
thumb
and
f
ore-
finger
of
right
hand so
that
the
thread
on
top
leads
from
left
to
right
2.
Insert
bobbin
into
bob
bin
case,
pull
the
thread
into
the
slot
of
the
bobbin
case
and
draw
it
under
tension
spring
and
into
the
fork-shaped
opening
of
the
spring.
\i
U
TENSION
SPRING
PLACING
BOBBIN
CASE
IN
SHUTTLE
Raise
needle
bar
to
its
highest
position,
and
slide
plate
forward.
Hold the
bobbin
case
latch
(D)
between
the
thumb
and
forefinger
of
the
left
hand, with
at
least
three
inches
of
thread
running
from
the
top
of
the bobbin
case
to
the
right.
Insert
and
center
the bobbin
case
on
the
stud
of
the
shuttle
body
(C).
Be
sure the
bobbin
case
finger
(E),
is
opposite
the
shuttle
race
notch
(A).
Press
the
bobbin
case
(B)
into
the
shuttle
as
far
as
possible
until
the
latch
catches
on
the
center
post
of
the
shuttle.
Then
release
the
bobbin
case
latch
(D).
Press the
bobbin
case
again
after
the
latch
has
been
released
to
make
sure
the
bobbin
case
is
locked
securely
in
place. Close
the
slide
plate.
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