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(Threading)
5-4. Placing the bobbin case and the bobbin
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.
1
B
There may be a case where several stitches at the start of sewing are difficult to be knotted when
Cau tion
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.
20
2
A
2
4
B
2
1
3
2
3
2
1
A
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.
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.
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
standard zigzag stitch and scallop zigzag stitch.
2) Use hole B mainly for standard zigzag stitch and
scallop zigzag stitch.
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