76
Thread Tension (3 threads)
Balanced tension
The illustration at left shows sewing results with
balanced 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 three thread tension dials at “3”.
Then sew, and check the thread tensions.
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
Tighten
Needle thread tension is too loose
The illustration shows sewing results when the
needle thread tension is too loose.
Remedy:
Tighten needle thread tension.
Left needle thread tension dial
Right needle thread tension dial
Looper thread tension is out of balance (1)
The illustration shows sewing results when the lower
looper thread tension is too tight and/or upper looper
thread tension is too loose.
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
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