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12
ADJUSTING
THE
TENSION
Always
adjust
the
upper
thread
tension
with
the
presser
foot
down,
as
the
tension
is
automatically
released
when
it
is
raised.
To
increase
the
tension
turn
dial
(A)
(Fig.
1?)
to
the
right,
or
clockwise.
To
decrease,
turn
to
the
left.
The
higher
the
number
on
the
dial,
the
tighter
the
tension.
Set
numbers
to
indicating
pointer
(B).
Before
adjusting
lower
tension,
be
sure
the
machine
is
threaded
correctly.
When
it
is
necessary
to
change
the
bobbin
tension,
turn
small
screw
(Fig.
18)
on
side
of
the
bobbin
case
clockwise
to
tighten,
counterclockwise
to
loosen.
When
the
tensions
are
properly
balanced,
a
perfect
stitch
will
be
formed
with
both
threads
interlocking
in
the
center
of
the
fabric.(Fig.
19.)
When
the
upper
tension
is
too
tight
the
lower
thread
is
pulled
up
over
the
upper
thread
which
is
lying
flat
on
the
top
of
the
fabric.
Fig.
20.
When
the
upper
tension
is
too
loose,
the
upper
thread
forms
loops
over
the
lower
thread
which
is
lying
flat
under
the
fabric.
Fig.
21.
Fig.
17
Fig.
19
Fig.
20
Fig.
21