Top Innovations SP-402 User Manual
Page 15
ADJUSTING TENSION
All tension adjustment is accomplished
by using the needle thread tension dial.
The bobbin case tension is pre-set at
the factory and cannot be adjusted.
ALWAYS DOUBLE CHECK
THREADING BEFORE
ATTEMPTING TO ADJUST
TENSION!
15
The tension level may be determined by
using two different color threads for
the needle and bobbin threads, and
then analyzing the resulting stitches.
When an even amount of thread is exerted on both threads, a smooth, even
stitch known as a balanced stitch is produced.
A perfect, balanced stitch will have the needle and bobbin threads locked
between the two layers of fabric with no loops on top or bottom and no
puckering.
Too much tension will produce a tight stitch, which will cause the fabric to
pucker. To decrease tension, turn the tension dial downwards.
Too little tension will produce a loose stitch, which will cause loops in your
seam. To increase tension, turn the dial upwards.