Operation Manual

Regulating
the
Upper
Tension
Turn
tension
knob
right
to
increase
tension
on
heavier
materials.
Turn
it
left
to
ease
tension
on
lighter
fabrics.
The
numbers on the
tension
dial
indi
cate
different
degrees
of
tension.
Regulating
the
Lower
Tension
The
bobbin
tension
rarely
needs
adjust
ing,
except
for
special
sewing
jobs.
Ad
justment
is
made
by
a
small
knurled
screw
on the
bobbin
case.
Turn
it
right
for
tighter
tension
or
left
for
looser
tension.
DR
580
H
8029
16