Sewing in reverse, Adjusting the tensions – SINGER W128 User Manual
Page 12
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12
SEWING IN REVERSE
When you wish to sew backward to tie the threads at the beginning or end a seam,
raise lever A, Fig. 12, as far up as it will go. The machine will sew backward until lever
is returned to its original position.
ADJUSTING THE TENSIONS
Always adjust the upper tension with the presser foot down, as the tension is automati
cally released when it is raised. To increase the tension on the upper thread, turn dial (Fig.
13) toward you. To decrease, away from you. The higher the number on the dial the tighter
the tension.
Before adjusting lower tension be sure that the machine is
threaded properly. When necessary to change the bobbin ten
SiOn, turn small screw (Fig. 14j on side of the bobbin case clock
wise to tighten, counter-clockwise to loosen.
When the upper and under tensions are properly balanced,
a penect stitch will be formed with both threads interlocking
in fabric (Fig. 15).
When the upper tension is too tight, the lower thread is
pulled up over the upper thread which is lying flat on the fabric
(Fig. 16).
When
the
upper
tension
is
too
loose,
the
upper
thread
forms loops over the lower thread lying flat on the fabric (Fio
17).
Fig. 13
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c
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