White 951 - ADJUSTING THE TENSIONS

ADJUSTING
THE
TENSIONS
Always
adjust
the
upper
tension
with
the
presser
foot
down,
as
the
tension
is
released
when
it
is
raised.
To
increase
the
tension
on
the
upper
thread,
turn
dial
‘IA”
(Fig.
18)
to
the
right
(clockwise)
or
to
the
left
(counterclockwise)
to
decrease
the
tension.
Before
adjusting
lower
tension,
be
sure
the
machine
is
threaded
correctly.
When
it
is
necessary
to
change
the
bobbin
tension,
turn
the
small
screw
(Fig.
22>
on
the
side
of
the
bobbin
case
clockwise
to
tighten,
counter
clockwise
to
loosen.
Fig. 19
Fig.
20
Fig.
21
When
the upper
and
lower
tensions
are
properly
balanced,
a
perfect
stitch
will
be
formed
with
both
threads
interlocking
in
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
fabric
(Fig.
20).
When
the upper
tension
is
too
loose,
the
upper
thread
forms
loops
over
the
lower
thread
lying
flat on
the
fabric
(Fig.
21).
—12—
Fig.
22