Pfaff synchrotronic 1229 Owner's Manual - Page 14
Jpper, tension, correct, lower
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Jpper tension (6) = Setting mark. The normal tension setting is in the light-coloured range between 3 and 5. The higher the number, the tighter the tension. ower tension = Regulating screw. Turn it left for a looser tension, or right for a tighter tension. 1 = Both tensions are correct. = Upper tension too loose or lower tension too tight. = Lower tension too loose or upper tension too tight. The correct lower tension Let the bobbin case with a full bobbin hang down freely by the thread. It must not slide down by its own weight, but should gradually move downwards when you jerk your hand upwards lightly. Once the lower tension has been set correctly, adjust the upper tension only. 4 L M N 0
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Jpper
tension
(6)
=
Setting
mark.
The
normal
tension
setting
is
in
the
light-coloured
range
between
3
and
5.
The
higher
the
number,
the
tighter
the
tension.
ower
tension
=
Regulating
screw.
Turn
it
left
for
a
looser
tension,
or
right
for
a
tighter
tension.
1
=
Both
tensions
are
correct.
=
Upper
tension
too
loose
or
lower
tension
too
tight.
=
Lower
tension
too
loose
or
upper
tension
too
tight.
The
correct
lower
tension
Let
the
bobbin
case
with
a
full
bobbin
hang
down
freely
by
the thread.
It
must
not
slide
down
by
its
own
weight,
but
should
gradually
move
downwards
when
you
jerk
your hand
upwards
lightly.
Once
the
lower
tension has been
set
correctly,
adjust
the
upper
tension
only.
L
M
N
0
4