6
12
13
①
②
14. Threading the needle thread (Fig.12)
Raise the thread take-up lever to its highest position,
and then thread it as shown in the Fig.
15. Adjusting the thread tension(Fig.13)
1. Needle thread tension
(1) Adjust the needle thread tension with reference
to the needle thread tension.
(2) Adjust the needle thread tension by turning the
thread tension nut①.
As to some special materials, adjust its tension by
adjusting the thread take-up spring.
2. Needle thread tension
Adjust the needle thread tension by turning the
screw②.
Tighten
Loosen
Tighten
Loosen
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