Publicidad
Thread Tension
(3 threads)
Correct
tension
The illustration
at right shows
sewing results with
correct tension
settings.
However,
adjusting
the
thread tension
may be required
depending
on the
type of fabric and thread
being used.
(_
Wrong side of fabric
(_) Right side of fabric
(_
Right or left needle thread
(_
Upper looper thread
(_
Lower looper thread
Thread
tension
adjustment
* Set all three thread tension dials at "3".
Then serge, and check the tension
balance.
If the tension balance
on the test piece is not
satisfactory,
you can adjust the thread tension
with thread tension dial.
(_
Thread tension dial
Setting mark
(_
Loosen
\
It
tt
Remedy:
Loosen
lower looper thread tension
and/or tighten
upper looper thread tension.
(_
Upper looper thread tension dial
Lower looper thread tension dial
Looper
thread
tension
is out of balance
(2)
The illustration
shows sewing results when the upper
looper thread
tension is too tight and/or
lower looper
thread tension
is too loose.
Remedy:
Loosen
upper looper thread tension
and/or tighten
lower looper thread tension.
@
Upper looper thread tension dial
Lower looper thread tension dial
54
It
11
® @J---
J
J
Publicidad
