32 (E)
- Model N422E, N420E -
ADJUSTING THE THREAD
TENSIONS
Normally, when upper thread regulating dial
is set to [AUTO], thread tensions will be
satisfactory for most all sewing.
If it is difficult to obtain correct tensions
depending on the type of fabric and threads
being used, adjust the upper thread tension
dial to settings shown below.
A. Correct Thread Tensions
Upper and bobbin threads should lock
approximately in the middle of fabric.
B. When bobbin thread appears on top
side of fabric.
Turn the tension dial to the left (
–
).
C. When upper thread appears on the
bottom side of fabric.
Turn the tension dial to the right (
+
).
D. Thread Tension for Zigzag Stitches
To sew zigzag stitches, the thread tension
should be set to a slightly weaker tension
than when sewing straight stitches.
You will obtain a nicer stitch when upper
thread appears on bottom side of fabric.
Helpful Hint
If your sewing appears as shown on
drawing, stitches on top side of fabric are
good but bottom side tends to look like a
towel, it could be that the upper thread is not
threaded correctly (especially threading of
the upper thread tension regulator may not
be correct.) Refer to page 26 for correct
threading.
