Operation Manual

38
Adjusting the Needle Thread Tension
Choosing the Correct Tension - Straight Stitch
The ideal straight stitch will have threads locked
between the two layers of fabric.
According to the LCD screen, needle thread tension
can range from 2 – 6 q and is normally set on 4.
Align the number 4 on the tension dial with the
setting mark w.
If you look at the needle thread e (top thread) and
bobbin thread r (bottom thread), you will notice
that there are no gaps. Each stitch is smooth and
even.
Occasionally the needle thread tension needs to be
adjusted. Examples:
— stiff or heavy fabric
— sewing more than two layers of fabric
— type of stitch
— thread
When adjusting needle thread tension, the higher
numbers tighten, the lower numbers loosen.
q
w
e
r
• Tension is too tight
The bobbin thread shows through on the topside of
the fabric and it will feel bumpy.
Tu rn the dial to a lower number to loosen the needle
thread tension.
•Tension is too loose
The needle thread shows through on the underside
of the fabric and it will feel bumpy.
Tu rn the dial to a higher number to tighten the
needle thread tension.
• Adjusting Tension for Zigzag and Satin Stitches
The upper thread tension should be slightly looser
when sewing a zigzag or a satin stitch. The upper
thread should appear slightly on the underside of
the fabric.