Operation Manual

Needle
Breakage
Uneven Stitches
Cause:
Remedy:
Cause:
Remedy:
Needle
bent
and
struck
by
the
point
of
Replace
needle
at
once
to
prevent
more
Tension
regulated
improperly.
Adjust
tension
in
accordance
with
in
the
hook.
damage.
structions
contained
in
sections
13
anc
Needle
too
thin
or
thread
too
thick.
Study
Needle and
Thread
Chart
on
14.
page
11.
Thread
too
heavy,
knotty
or
stiff.
Use
only
first-class
thread.
Upper
thread
tension
too
tight,
thus
[ither
ease
tension
or
use
a
thicker
bending
needle.
needle.
Bobbin
thread
unevenly
wound.
For
winding
do
not
run
the
thread
ove
your
finger
but
over
the
winder
thrern
Needle
bent
and
strikes
needle
plate Do
not
force
the
feeding
movement,
in-
tension.
due
to
the
material
being
pulled or
crease
pressure
on
heavier
material
and
pushed.
thus
ensure
better
feeding.
Race
too
dry.
Apply
one
or
two
drops
of
oil.
Bobbin
case
inserted
improperly.
When
inserting
the
bobbin
case
push
it
Odd
thread
accumulated
betv,een
the
Loosen
tension
and
remove
thread.
up
until
it
clicks
with
an
audible
sound.
upper
thread
tension
discs.
44
45