SINGER W612 User Manual
Page 33
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31
T rouble
Probable Cause
Correction
skipping
Stitches
Bent needle
Discard and repbce.
Needle pbced
incorrectly in clamp
See instruction page No. 6.
Too fine a needle
for thread being used
See needle and thread chart, page No. 4.
irregular
Stitches
Upper thread tension
too loose
Tighten upper tension.
Improper threading
See threading instruction, page No. 8.
Bobbin not wound
evenly
Rewind bobbin.
Uneven
Stitches
Pulling or holding
material .............................
Avoid pulling or hoUing material, just guide it.
Not enough tension
on upper thread
Increase tension.
Poor quality thread
Try different thread.
Needle too fine for
thread being used
See needle and thread chart, page No. 4.