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6. Changing needle thread tension
Needle thread tension can be changed while performing trial sewing since the data related to the needle
thread tension can be set by the sewing mode as well.
1) Call thread tension at parallel section
setting data.
When THREAD TENSION key
the sewing data edit screen A is displayed.
2) Change thread tension at parallel
section.
Press DATA CHANGE key ❼
value B goes up or comes down and the thread
tension can be changed. The relation between the
finish of sewing and the set value is as shown in
the illustration below. Set the value referring to the
illustration.
3) Call thread tension at bar-tacking
section setting data.
When THREAD TENSION key
pressed again, the sewing data edit screen C is
displayed.
4) Changing the needle thread tension at
bar-tacking section.
Press DATA CHANGE key ❼
value D goes up or comes down and the thread
tension can be changed. The relation between the
finish of sewing and the set value is as shown in
table below. Set the value referring to the table.
* For the tension other than that at parallel section
and bar-tacking section, refer to
ing sewing data" p.35
changing memory switch data"
Set value of tension at
① Tension at parallel
Purl stitch
section
② Bar-tacking tension
③ Tension at parallel
Whip stitch
section
④ Bar-tacking tension
Purl stitch and Whip stitch
is pressed,
, and set
is
, and set
"V-11. Chang-
"V-21. Method of
and
p.55.
① parallel section and ② bar-tacking section
Set value on panel
Crest is
lowered.
Thread tension
is decreased.
Thread tension
is decreased.
Thread tension
is decreased.
Purl stitch
Purl stitch
When applying higher tension to the needle thread to permit it to pass straight
through fabric, the purl stitch is formed by the bobbin thread which is pulled
Whip stitch
over from both sides to the center line.
Whip stitch
Whip stitch
The whip stitch is formed in zigzag showing the needle thread only on top of
fabric, and the bobbin thread on the bottom.
Initial value
Crest is raised.
120
Thread tension is
35
increased.
Thread tension is
60
increased.
Thread tension is
60
increased.
– 27 –
B
A
1), 2)
D
C
3), 4)
❼
For the eyelet
radial shape, set
the bar-tacking
tension first to
approximately
120 and make the
balance of stitch-
es.
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