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5-2. Adjusting the thread tension
The thread tension should be adjusted properly according to the kinds and the thickness of the materials,
stitch length, and seam width, etc. In addition, adjust the nuts case by case individually. Turn the nuts clock-
wisely will increase the thread tension. Otherwise, the thread tension will be decreased.
(1) Thread tension adjusting nuts
1) Tension adjusting nut No. ① controls thread ❶ .
2) Tension adjusting nut No. ② controls thread ❷ .
3) Tension adjusting nut No. ③ controls thread ❸ .
4) Tension adjusting nut No. ④ controls thread ❹ .
5) Tension adjusting nut No. ⑤ controls thread ❺ .
MO-6804
❶
①
(2) Adjusting the needle thread length
MO-6804
MO-6814***
⊕
1) Adjust the needle thread length by turning the thread guide in the directions of arrows.
2) The ⊕ direction indicates to increase the needle thread length.
3) The ⊖ direction indicates to decrease the needle thread length.
MO-6816***
❸
❹
❶
❷
②
③
⊕
⊖
⊖
MO-6814***
❸
❹
❺
❷
④
A
B
B
A
A= Increase
MO-6816***
⊕
⊖
– 19 –
❸
❹
❶
⑤
B= Decrease
⊕
⊖
⊖
⊕
⊕
⊖
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