Operation Manual

Trouble
Shoofing
I.
Machine
Skips
Stitches
Cause:
Remedy:
Needle
incorrectly
inserted.
Push
needle
up
as
for
as
it
will
go
and
be
sure
that
the
long
groove
faces
toward
you,
and
flat side
of
shank
away
from
you.
Wrong
needle.
The
correct
needle
system
is
stamped
on
bed
side.
(For
ordinary
sewing,
use
System
130R
needles.)
Needle
bent.
Insert
new
needle.
Machine
threaded
improperly.
Check
and
correct
threading
as
instructed
on
pages
16
and
17.
Needle
too
fine
or
too
thick
for
the
thread.
Use
correct
needle
and
thread.
2.
Needle
Thread
Breaks
Cause:
Remedy:
The
above
mentioned
may
cause
thread
breakage.
See
remedies
listed
under
1.
above.
Thread
tension
too
tight.
Adjust
tensions
as
instructed.
4
Poor,
knotty
or
rotten
thread
used.
Use
good
quality
threads
only.
Hook
raceway
is
jammed
with
thread
or
needs
Clean
and
oil
hook
raceway.
oiling.
Burrs
or
sharp
edges
on
needle
plate
salt.
Polish
needle
plate
slot
with
fine
emery
cloth.
30