Pfaff Automatic 260

Coz?ct
‘7?n.cian
7?efjule4tion
Balanced
tensions
are
essential
for
sewing.
If
your
tension
is correct,
you
will
have
perfect
seams
as
sketched
below
(Ill).
Sketch
I
— The
threads
interlock
on
the
underside
of
the
fabric.
Cause:
Upper
tension
too
loose
or
lower
tension
too
tight.
Sketch
II
—
The
threads interlock
on
the
surface
of
the
fabric.
Cause:
Upper tension
too
light
or
lower
tension
too
loose.
A
To
check
whether
the
tensions
are
correctly
balanc
ed,
take
a
closely woven
piece
of
fabric
and
sew
o
levi
straight and
zigzag
seams, Il
the
straight
stifrhes are
hghtly drawn
in
on
both
sides
of
the
fabric
(seC
seam sketch
Ill),
the
tensions
are
cor
red
The
surest
way
to
double-check
this
is
by
ex
amining
a
zigzag seam,
If
the
zigzag
seam
is equal
ly
wide
on
surface and
underside
of
the
fabric,
that
is, it
the
threads are
locked
exactly
at
the
zigs
a
rid
zags
at
the
seam,
the
tension
adiustnsent
is
correct,
R
8004
20