Operation Manual

—
—
—
—
—
The
bobbin
thread
breaks:
The
machine
skips
stitches:
1.
Knotty,
inferior
thread
is
being
used
—
1.
The
needle
is
not
inserted
all
the
way
use
a
better
quality,
up
in
the needle
clamp
—
correct
this
(see
page
10).
2.
The
bobbin
thread
tDnsion
is
too strong
—
loosen
it
(see
page
25).
2.
The
needle
is
bent
or
blunt
replace
the
needle
(see
page
10).
3.
The bobbin
case teison
is
too
weak
—
tighten
it
(see
page
25).
3.
Thread
tensions
are
incorrectly
set
—
adjust
them
(see
pages
24
and 25i.
4.
The
needle
is
bent
—
replace
it
by
a
new
one
(see
page
10).
4.
The
needle
is
too
fine
or
too
thick
for
the
thread
—
replace
the
needle
or
the
5.
The bobbin
thread
is
wound
unevenly
thread
so they
will
suit
each
other
and
—
wind
evenly
and
not
too
tight.
the
material
(see
pages
10,
11
and
12).
6.
The
bobbin
case
has
a
rough
spot
—
5.
The
thread
curs
up
because
it
is
un
take
out
the
bobbin
case
and
consult
suitable
for
machine
sewing
—
use
your
dealer,
suitable
thread.
70