SINGER W173 - Manual (Page 15)

14
SEWING IN REVERSE
When you wish to sew backward to tie the threads at the beginning or end of a seam,
press in the button R, 8, Fig. 1, as far down as it will go. The machine will sew backward
as long as the button is held down.
ADJUSTING THE TENSIONS
Always adjust the upper tension with the presser foot down, as the
when it is raised. To increase the tension on the upper thread, turn
right. To decrease, turn to the left.
Before adjusting lower tension be sure that the machine is
threaded correctly. When necessary to change the bobbin
tension, turn small screw (Fig. 15) on side of the bobbin
case clockwise to tighten, counterclockwise to loosen.
When the upper tensions are properly balanced, a perfect
stitch will be formed with both threads interlocking in
fabric (Fig. 16).
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. 17). When the upper tension is too loose, the
upper thread forms loops over the lower thread lying flat on
the fabric (Fig. 18).
tension
dial (Fig
is released
14) to the
Fig. 14
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