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Adjust the Needle Thread Tension
for a Straight
Stitch
• Correct tension
_1_Needle thread (Top thread)
_2_Bobbin thread (Bottom thread)
(3_. T o loosen
_4_ To tighten
The ideal straight stitch has threads locked between two
layers of fabric, as illustrated (magnified to show detail).
If you look at the top and bottom of a seam, notice that
there are no gaps. Each stitch is smooth and even.
When adjusting the needle thread tension, the higher the
number, the tighter the needle thread tension.
Results depend on:
- stiffness and thickness of the fabric
- number of fabric layers
- type of stitch
•Tension is too tight
f
\
,J_ Needle thread (Top thread)
_2_Bobbin thread (Bottom thread)
_3_ To loosen
_4_Right side (Top side) of fabric
_5_ Wrong side (Bottom side) of fabric
If the bobbin thread shows through on the right side (Top
side) of the fabric, and the stitch feels bumpy, turn the dial
to a lower tension setting number to loosen the needle
thread tension.
• Tension is too loose
_.1_ Needle thread (Top
{2_,Bobbin thread
_3_ To tighten
_4_. Right side
_5_, Wrong side
If the needle
(Bottom side) of th(
turn the dial to a hic
the needle thread tensi(
of fabric
wrong side
bumpy,
to tighten
• Adjust bobbin tension
'_l_Adjusting screw
_2_ Increase tension
_'Decrease
tension
NOTE:
Small screwdriver is not furnished with this machine, but
may be ordered. (page 4)
In some instances, you may need to adjust the bobbin
thread tension.
Turn the adjusting screw _1_ in the direction of_3_when the
bobbin thread tension is too tight.
Turn the adjusting screw_l_ ' in the direction of_2_when the
bobbin thread tension is too loose.
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