Needle thread tension – SINGER 319K User Manual
Page 38
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NEEDLE THREAD TENSION
Thread Tensions for Straight Stitching
For perfect stitching, the tension on needle
and bobbin threads must be heavy enough to
pull threads to center of material and make a
firm stitch.
To Regulate Needle Thread Tension
The tension on needle thread can be tested
only
when presser foot is down.
The numerals "0” to "9” on dial
B2
indi
cate different degrees of tension that can be
obtained. The higher the number the greater
the tension. The numbers do not denote size
of thread or ounces of tension.
When tension has been correctly set for aver
age sewing, note number at indicator line
C2.
This setting may be quickly regained should
the tension be altered for special work or
change in size of thread.
Fig. 59. Needle Thread
Tension Too Tight
Tensions Balanced