SINGER W1213 - Manual (Page 15)

Tension Dial
The top tension (Fig.41) consists of discs
between which the thread passes. The
descriptive tension dial regulates how tightly
the thread is being held. When necessary,
adjust the top tension in relation to the red
line, turning toward “loose” or “tight” as
needed. The top tension is engaged only when
the presser foot is down for sewing.
The
bobbin thread tension is controlled by
the left small screw on the front edge of the
bobbin
case. (Fig.42) This screw may be
turned with the small screw driver resting in
the notch of the slide plate. Turn to the right
to tighten and to the left to loosen.
41
42
Adjusting the Tension
The tensions may have to be adjusted for
certain fabrics. Before adjusting your tension
make sure that the machine is properly
threaded with identical thread on both
top and bobbin. Use a new needle the correct
size for the thread and fabric being sewn. (See
chart page 8.)
It is best to test the tension on a scrap of the
fabric you are using for construction. Always
use a double thickness and always sew on the
bias when testing tension.
The tensions are correct when the upper
thread and lower thread interlock between
the two layers of fabric with the loops not
showing on top or bottom. (Fig. 43)
Adjust as follows;
1 .
2
.
3.
If the seam is puckered both top and
bobbin tensions are too tight. Loosen
both tensions slightly. (Fig.43)
If
top thread lays on the fabric with
bottom thread looping over it, the top
tension is too tight. (Fig. 44) Loosen the
top tension slightly.
If the bottom thread lays on the fabric
with the upper thread looping over U, top
tension is too loose. (Fig. 45) Tighten
top tension slightly.
Pattern - M
Length - 2-3
Width - 0
Needle Position - M
Feed Dog - High
Pressure - 5
Foot - All Purpose
43