PREPARATION
OF
THE
BOBBIN
THREAD
Bobbin
case
Trip
latch
Hook
Tension
disc
base
Adjusting screw
— ^
Thread
hole
Hfii\
f(l!r
Thread
passinghole
Inserting & removing
the
bobbin
case
1.
Rotate
the
hand
wheel
with
your
hand
and
bring the needle to its highest position.
2.
Tilt
the machine and support it by tlie head
support
on the table.
3. Lift up the knob of the bobbin case and
take
it
out.
*
If
you
hold
the
knob
in
open
condition,
bobbin
will
not
fall
off.
4.
To
insert
the
bobbin
case,
insert
it
deep
into
the
shaft
of
tlie
hook
so
that
the
nose
of
the
bobbin
case fully
enters
the
groove
of
the
hook
and
then
close
the
knob.
Winding
the
bobbin
thread
1.
Set
the
bobbin
winder
to
the
table
with
screws.
2.
Pass
the
thread
in
the
order
shown
in
the
figure and wind it around the bobbin
several
times.
3. Knock down the trip latch and contact the
pulley to the
belt
4. Adjust the winding amount by the winding
adjustingscrewso that about 80%is wound.
5.
When
the
thread
is
wound
unevenly,
move
the
thread
tension
disc
base
to
left
and
correct
to
even winding
condition.
6. When the winding is completed, the trip
latch
will be released
and
the
pulley will
stop
automatically.
How
to
insert
the
bobbin
1.
Hold
the
bobbin
and
insert
it
to
the
bobbin
case so
that
the
thread
will be in
ri^t-twist
condition.
2. Pass the
thread
to
the
thread passing hole
of
the
bobbin
case.
3.
Then
pull the
thread
and
it
will pass under
the
thread
tension spring and
can
be pulled
out
through
the
thread
hole.
- 6 -
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