20
1) Turn the handwheel by hand to raise the needle
to its highest position.
2) Take a bobbin by your right hand with the thread
drawn out about 5 cm from the thread end of the
bobbin and place it into the bobbin case as illustrated.
3) Thread the bobbin case in the order of the
numbers and pull it out through the thread path
as illustrated. The bobbin rotates in the bobbin
case in the direction shown by arrow when bobbin
thread is drawn.
4) Raise bobbin case latch
1
and hold it between
your two fingers as shown in the figure on the left.
5) Insert the bobbin case into the sewing hook shaft
as far as it will go by putting your hand from the
under cover of the inner hook. (Click sounds.)
6) Release the bobbin case latch to let it steadily
rest in the closing position.
How to use the bobbin case thread hole
1) Use hole A mainly for zigzag stitches other than
2-step zigzag stitch and scallop zigzag stitch.
2) Use hole B mainly for 2-step zigzag stitch and
scallop zigzag stitch.
6) In case that the bobbin thread is not wound
evenly on the bobbin, loosen the nut
4
and turn
the bobbin thread tension to adjust the height of
the thread tension disk
2
.
• It is the standard that the center of the bobbin is
as high as the center of the thread tension disk.
• Move the position of the thread tension disk
2
to
the direction A as shown in the figure on the left
when the winding amount of the bobbin thread on
the lower part of the bobbin is excessive and to
the direction B as shown in the figure on the left
when the winding amount of the bobbin thread on
the upper part of the bobbin is excessive.
After the adjustment, tighten the nut
4
.
7) Turn the thread tension nut
3
to adjust the
tension of the bobbin thread winder.
(threading)
There may be a case where several stitches at the start of sewing are difficult to be knotted when
thread trimmer is used with thin filament thread such as (#50, #60 or #80) using hole B. At this
time, use the other hole or perform the sewing starting from the right.
WarNING :
to protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
5-4. Placing the bobbin case and the bobbin
Note 1. When winding bobbin thread, start winding
in the state that the thread between bobbin
and thread tension disk
2
is tense.
2. When winding bobbin thread in the state that
the sewing is not performed, remove needle
thread from the thread path of the thread
take-up and remove bobbin from the hook.
a
B
w
w
w
r
w
e
q
a
B
q
w
e
q
