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ADJUSTING THE THREAD TENSIONS
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The thread tension must be properly
balanced. If adjustment is required, it can be
made by changing the upper thread tension.
A. Correct Thread Tension
Upper and bobbin threads should interlock
in the middle of fabric.
B.When bobbin thread appears on top
side of fabric.
Turn the tension dial to a lower number to loosen the
upper thread tension.
C.When upper thread appears on the bottom
side
of fabric.
Turn the tension dial to a higher number to tighten
the upper thread tension.
D.Thread Tension for Zigzag Stitches
To sew zigzag stitches, the thread tension
should be set to a slightly weaker tension than
when sewing straight stitches.
You will obtain a nicer stitch when upper thread
appears slightly on bottom side of fabric.
A
C
D
B
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TOP
TOP
TOP
BOTTOM
BOTTOM
BOTTOM