Operation Manual

2.
Needle
Thread
Breaks
Cause:
Remedy:
The
above-mentioned
may
cause
See
remedies
listed
under
1.
above.
thread
breakage.
Thread
tension
too
tight.
Adjust
tensions
as
instructed.
Poor,
knotty
or
rotten
thread
used.
Use
good-quality threods
only.
Hook
raceway
is
jammed
with
thread
Clean
and
oil
hook
raceway.
or
needs
oiling.
3.
Needle
Breaks
Cause:
Remedy:
Bent
needle
strikes
point
of
sewing
Replace
needle
at
once
to
prevent
hook,
further
damage.
Needle
too
thin
or
thread
too
heavy.
Use
correct needle
and
thread
sizes
(see
page
14).
Fabric
pulls
needle
so
it
bends
and
Don’t
force
the
feeding
motion.
Guide
strikes
needle
plate,
the
material
lightly.
38