Operation Manual

material
—
remove
the
needle
plate
and
thoroughly
clean
the
feed
dog.
The
material
puckers
1.
Both
tensions
are
too
severe
— loosen the
setting
flange
on
upper
thread
tensioner
and
the
screw
on
bobbin
case;
(see
page
12:
“Regulating
the
Thread
Tensions”).
2.
The
presser
foot
exerts
too
much
pressur
on
the
work
—
reduce
the
pressure by
adjusting
the
regulating
screw
13
—
see
page
1.
Uneven
stitching
1.
The
thread
is
uneven
or
too
thick
— change
the
thread.
2. The
tension
is
wrong
—
regulate
the
tension
(see
p.
12:
“Regulating
the
Thread
Tensions”).
3.
Upper
and
under
thread
are
drawing
off
unequally
from
reel
or
bobbin
respectively,
owing
to
a
dirty
set
ting
flange or
bobbin
—
remove
all
obstructions.
4.
The
needle
is
blunt
or
bent
—
use
a new
needle.
5.
The
bobbin
is
wrongly
positioned
—
remove
the
bobbin
case
and
make
sure
the
bobbin
is properly
inserted
in
the
case; (see
page
9:
“Replacing
the
Bobbin
Case”).
22
In
all
cases
where
faulty
working
of
your
sewing
machine
cannot
be
rectified
by
your
following
the
above
directions,
please
consult
your
Sewing
Machine
Dealer.
He
will
al
ways
be
glad
to
advise
you.
Fig.
W
Rear
View
of
machine
showing
support
opened
23