Adjusting pressure, And feeding of fabric – SINGER W167 User Manual
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When the upper and under tentions are properly ba
lanced, a perfect 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.
AND FEEDING OF FABRIC
Usually for straight sewing and zigzag stitching, the pressure bar cap or darner release
Fig. 18, is at its lowest position and the drop feed knob is turned high position. Fig. 19.