SINGER W7911 User Manual
Page 19
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19
Trouble
Probable Cause
Correction
Skipping
Stitches
Bent needle
Discard and replace
Needle placed in
correctly in clamp
See instruction page No. 8
Too fine a needle
for thread being used
See needle and thread chart, page No. 7
Irregular
Stitches
Upper thread tension
too loose
Tighten upper tension
Improper threading
See threading instruction, page No. 10
Bobbin not wound
even
Rewind bobbin
Uneven
Stitches
: Pulling or holding
material :
Avoid pulling or holding 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. 7