White 816 - Page 41

Yr
o
u
b
e
Probable
Cause
Correction
Skpping
Bent
needle
Discard
and
replace.
sthches
Needle
placed
See
instruction,
page
10.
incorrectly
in
clamp
Too
fine
a
needle
for
See
needle
and
thread
chart,
page
5.
J.r
d
berng
used
-
rcr:u!ar
stitches
ipper
thread
tension
too
loose
Improper
threading
Tighten
upper
tension.
3obbin
not
wound
evenJy
See
threading
instruction,
page
8
and
9.
Rewind
bobbin.
Uneven
ulIing
or
holding
Avoid
pulling
or
holding
material,
just
guide
it.
material
sUiches
Not
enough
tension
Increase
tension. on
upper
thread
Poor
quality
thread
Try
different
thread.
Needle
too
fine
for
See
needle
and
thread
chart,
page
5.
thread
being
used