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CHECKING
TENSIONS
The
easiest
way
to
check
tensions
is
to
sew
a
medium
zigzag
stitch
on
the
fabric
you
will
be
using.
Use
the
appropriate
type
of
thread
and
needle.
Use
different
colors
of
thread
on
the
bobbin
and
upper
spool.
Sew
a
line
of
zigzag
stitches.
The
bobbin
thread
should
not
show
on
the
top
of
the
fabric.
Adjust
the
top
tension
if
necessary
to
achieve
the
stitch
balance
mentioned
above.
UNBALANCED
Lower
Tension
BALANCED
Correct
Tension:
Pull
end
of
lower
thread
backwards
away
from
plate.
You
should
feel
a
slight
steady
pressure.
Adjustment:
Note
sketch
showing
correct
tensions.
Remove
cover
plate
and
insert
small
screwdriver
into
shuttle
area
C
and
locate
adjusting
screw.
Turn
adjusting
screw
clockwise
A
if
lower
thread
is
too
loose
and
counterclockwise
B
it
lower
thread
is
too
tight.
A
—15—