Full Product Manual

10
Adjusting the Needle Thread Tension
Straight stitch balanced tension
The ideal straight stitch has threads locked between two
layers of fabric, as illustrated (magnied to show detail).
If you look at the top and bottom of the seam, notice that
the stitches are evenly balanced.
q Needle thread (top thread)
w Bobbin thread (bottom thread)
e To loosen
r To tighten
When adjusting the needle thread tension, the higher the
number, the tighter the top thread tension.
Results depend on:
- stiffness and thickness of the fabric
- number of fabric layers
- type of stitch
q
w
e
r
r
q
w
t
e
Tension is too loose
The needle thread shows through on the wrong side of
the fabric, and the stitch feels bumpy. Turn the dial to a
higher number to tighten the needle thread tension.
q Needle thread (top thread)
w Bobbin thread (bottom thread)
e To tighten tension
r Right side (top side) of fabric
t Wrong side (bottom side) of fabric
r
q
w
t
e
Tension is too tight
The bobbin thread shows through on the right side of the
fabric, and the stitch feels bumpy. Turn the dial to a lower
number to loosen the needle thread tension.
q Needle thread (top thread)
w Bobbin thread (bottom thread)
e To loosen tension
r Right side (top side) of fabric
t Wrong side (bottom side) of fabric