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Thread Tension
It is very important to make sure that the bobbin tension is properly set first,
see page
16 for directions on setting the bobbin tension. As long as you have your bobbin tension correct,
you should be able to fix the tension by adjusting only the top tension. If you are unable to fix you
tension by only adjusting the top tension you may need to re-adjust the bobbin tension.
If the bobbin thread is
being pulled through the
top layer of fabric you
need to decrease the
tension on the top thread
by turning the top tension
knob counter-clockwise.
If the top thread is
being pulled through the
bottom layer of fabric
you need to increase
the tension on the top
thread by turning the top
tension knob clockwise.
If the thread is
properly tensioned the
top thread and the
bobbin thread will knot
in the middle of the
fabric layers.
Thread
Knot
Bobbin
Thread
Top Thread
Proper Tension
Too Much Top Tension
Too Little Top Tension
Increase Tension
Decrease Tension
Turn the Knob Counter-
Clockwise
Turn the Knob Clockwise
Too Much Bobbin Tension
Too Little Bobbin Tension
Bobbin Thread Pulled
Through Top fabric
Top Thread
Pulled Through
Bottom Fabric
Top
Fabric
Bottom
Fabric
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