Operation Manual

Sewing
faults
and
their
removal
Cause:
J
1.
The
machine
skips
stitches
Needle
is not
properly
inserted.
A
wrong
needle
has
been
inserted.
Needle
is
bent
or
blunt.
Machine
is not
properly
threaded.
Needle
is
too
small
for
the
thread.
2.
The
needle
thread
breaks
See
1.
J
Thread
tension
is
too
tight.
Thread
is
poor
or
has
slubs
in
it
or
it
has
become
dry
after
too
long
in
storage.
J
Thread
is
too
thick.
j
3.
Needle
breaks
off
J
Needle
not
pushed
in
fully.
Needle
is
bent.
J
Needle
is
too
thick
or
too
thin.
Needle
is
bent
and
hits
the
needle
plate
because
J
you
are
pulling
or
pushing
the
fabric.
The
bobbin
case
is
not
properly
inserted.
4.
Seam
is
sewn
unevenly
The
tension
needs
adjusting.
I
Thread
is
too
thick,
slubbed
or hard.
The
bobbin
thread
is
unevenly
wound.
Thread
loops
above
or
below
the
stitch
6.
Machine
binds
Loose
threads
in
the
hook
race
Removal:
Push
needle
fully
upwards.
Flat
side
to
the
back.
Use
needle
system
130/705
H.
Insert
a
new
needle.
Check
the
threading
paths.
Use
a
larger
needle.
See
1.
Adjust
thread
tension.
Only
use
good
threads.
Use
a
needle
with
a
larger
eye
(System
130
N).
Insert
new
needle
and
push
it
fully
in.
Insert
new
needle.
See
needle
chart
(Pages
152/153).
Let
the
machine
feed
the
fabric.
Only
guide
the
fabric
lightly.
Push
the
bobbin
case
in
fully
when
inserting
it.
Check
needle-thread
and
bobbin-thread
tensions.
Use
perfect
threads
only.
Do
not
wind
free-hand.
Run
the
thread
through
the
primary
tension.
Thread
up
correctly.
Check
needle-thread
and
bobbin-thread
tensions.
J
5.
The
machine
does
not
feed
or
feeds
irregularly
Sewing
lint
has
collected
between
the
feed
dog
I
teeth
rows.
Feed
dog
is
lowered.
Slide
C
(see
page
37)15
at
right.
Remove
needle
plate,
remove
lint
with
brush.
Push
slide
C
(see
page
37)
to
the
left.
Remove
loose
thread
and
apply
one
drop
of
oil
to
the
hook.
J
7.
Machine
does
not
sew
the
entered
program
Switch
off
the
machine
and
back
on
again
after
about
10
seconds.
Enter
desired
program
again.
Important
notes:
Before
changing
the
sewing
feet
or
needles,
you
must
switch
off
the
master
switch.
Do
not
start
the
threaded
machine
without
fabric
in
it.
‘-
If
you
leave
the
machine,
even
for
a
short
time,
do
not
forget
to
switch
off
the
master
switch.
This
is
especially
important
when
children
are
nearby.
4!
C
U)
159