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2. Winding of bobbin thread (Fig.5)
Note: When bobbin thread is wound, keep the presser foot lifted.
Adjustment:
Tension of wound thread:
Conically wound thread :
Slack winding is recommended for polyester thread and nylon thread.
Move the thread guide toward smaller diameter of wound thread layer.
Length of wound thread :
Loosen the thread length adjusting screw to increase length of thread and
tighten the screw to decrease length of thread.
3. Selection of thread (Fig.6)
It is recommended to use "S" twist thread in the left needle (viewed from
front), and "Z' twist thread in the right needle.
When discriminate use of needle threads is impossible, use "Z" twist thread in
both the needles. For bobbin thread, ''S" twist thread as well as "Z" twist thread
can be used.
4. Threading of needle threads
(1) Pass each needle thread through thread guide A (Fig.7)
Note: When thin slippery thread (polyester Thread or filament thread,
for example) is used pass the thread through thread guide Bas well.
(2) With the take-up lever located at the upper most position, pass each needle
thread in the order shown in the following figure (Fig.8).
Note:
Pressing the upper thread-loosening button shown in
the figure below opens the saucer of the upper thread tension adjuster, and
the upper thread can easily pulled out.
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t!Hti::IC tension releasing but toe
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5. Adjustment of stitch length and reverse sewing (Fig.9)
1 ).
Rotate the stitch length adjusting dial to change the stitch length.
2). Pressing the stitch length adjusting lever for reverse stitching.
6. Balance of thread tension (Fig. l 0)
- 3 -
Balance tension
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TI9ht needle or loose
bobbin tension
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