Operation Manual

Upper
tension (19)
G
=
Setting
mark.
The
normal
tension
setting
is
in
the
white
range
between
3
and
5.
The
higher
the
number,
the
tighter
the
tension.
Lower
tension
H
=
Regulating
screw.
Turn it
left
for
a
looser
tension,
or
right for
a
tighter
tension.
=
Both
tensions
are
correct.
J
=
Upper tension
too
loose
or
lower
tension
too
tight.
K
Lower
tension
too
loose
or
upper
tension
too
tight.
12
The
correct
lower
tension
Let
the
bobbin
case
with a
full
bobbin
hang down
freely by
the
thread.
It
must
not
slide
down
by
its
own
weight,
but
should
gradually
move
downwards
when
you
jerk
your
hand upwards
lightly.
4
J
I—
1
K
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