White 1268 - Page 28

26
Trouble
Probable
Cause
Correction
Bent
needle
•
Needle
placed
incorrectly
Skipping
I
stitches
Too
fine
a
needle
for
thread
being
used
Upper
thread
tension
too
loose
Irregular
stitches
Improper
threading
Bobbin
not
wound
even
Pulling
or
holding
material
Not
enough
tension
on
upper
thread
Poor
quality
thread
Needle
too
fine
for
thread
in
clamp
Discard
and
replace.
See
instruction
page
No.
6.
See
needle
and
thread
chart,
page
No.
5.
Tighten
upper
tension.
Uneven
stitches
See
threading
instruction,
page
No.
9.
Rewind
bobbin.
Avoid
pulling
or
holding
material,
just
guide
it.
Increase
tension.
Try
different
thread.
being
used
See
needle
and
thread
chart,
page
No.
5.