Singer 630 - Bobbin Case and Shuttle Operations; Threading the Bobbin Case; Replacing Bobbin Case in Shuttle Body; Disconnecting Sewing Mechanism for Winding

HOW
TO
THREAD
THE
BOBBIN
CASE
Step
1
(illustrated
in
Fig.3
Hol
cl bob
bin
case
between
thumb
and
forefinger
of
left
hand,
so
that
the
slot
in
the
edge
of
the
bobbin
case
is
on
top.
Take
the
bobbin
be
tween
thumb
and
forefinger
of
right
han
cl
so
that
the
thread
on
top
leads
from
left
to
right.
Step
2 :
Insert
bobbin
int
bobbin
case,
pull
the
thread
into
the
slot
of
the
bobbin
case
as
shown in
Fig.
4,
and
draw
it
under
the
tension
spring
and
into
the
fork-shaped
opening
of
the
spring as
shown in
Fig.
5.
HOW
TO
REPLACE
BOBBIN
CASE
IN
SHUTTLE
BODY
After
completing
the
threading
operation.
hold
the
bobbin
case
latch,
(D)
Fig.
6.
be
tween the
thumb
and
forefinger
of
the
]eft
hand.
with
at
least
3
inches
of
thre
d run
ning
from
the
top
of
the
bobbin
case
to
the
right.
Insert anti
center
the
bobbin
case
on
the
stud
of
the
shuttle
body,
(C)
Fig.
6.
Be
sure
the
bobbin
case
finger.
F
Fig.
6.
is
opposite
shuttle
race
notch.
(A)
Pig.
6.
Press
the
bobbin case
into
the
shuttle
as
far
as
possible
until
latch
catches
on
the
center
post
of
shuttle.
THEN
release
the
bobbin
case
latch,
(D)
Fig. 6.
Press bobbin
case
again
after
latch
has
been
released
to
make
sure
the
bobbin
case is
locked
securely
in
place.
Close
the
hinged
bobbin
case
cover
in
the
bed
of
the
machine.
HOW
TO
DISCONNECT
THE
SEWING
MECHANISM
The
stop
motion
knob
is
the
knurled
knob
located
on
the
inner
right side
of
the
hand
wheel.
Fig.
7.
This
knob
is turned
counter
clockwise
to disengage
the
hand
wheel
from
the
sewing
mechanism
when
operating
the
bobbin
winder. This
is
necessary
to
prevent
damage
to
your
machine
while
winding
the
Fig.
5.
Tension Spring
E-BOBBIN
CASE
D-BOBBIN
CASE
C-CENTER
STUD
OF
SHUTTLE
B-BOBBIN CASE
Fig.
6.
Replace Bobbin
Case
bobbin.
Fig.
7.
To
Disconnect
the
Sewing
Mechanism