Bernina Artista 730 Manual - Page 19

Thread, tension, Drawing

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Thread tension (Fig. 13) BERNINA offers the unique advantage that the thread tension must never be changed. Only two marked lines are provided for control. When the fixed marked line on top arm and the dot on mobile part of thread tension device are set one above the other, the perfect thread tension is attained. - With BERNINA sewing machines a numbered scale is not necessary. By means of the adjusting disc 9 the thread tension can be changed for special purposes wished for. If the marked line is moving behind sight hole 10 to the right, the thread tension will be reinforced; if said marked line is moving to the left, the tension will be weaker. Correct normal tension is set when the mobile marked line is right above fixed marked line on sight hole. Drawing up the under thread (Fig. 14) Before sewing can be started, the under thread should be drawn up. With thumb and forefinger of the left hand hold the end of the needle thread, leaving it slack from hand to needle. Turn handwheel with one single revolution towards you, until, protruding from the needle eye, the thread causes the needle lever to ascend to its highest position. Now draw a little bit the end of the needle thread, whereby the under thread will come through the stitch hole towards above. Tighten upper and under thread slightly and pass them backwards under the presser foot. rig. 13 44 10 9 rig. 14 tP• el IF 17

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Thread
tension
(Fig.
13)
BERNINA
offers
the
unique
advantage
that
the
thread
tension
must
never
be
changed.
Only
two
marked
lines
are
provided
for
control.
When
the
fixed
marked
line
on
top
arm
and
the
dot
on
mobile
part
of
thread
tension
device
are
set
one
above
the
other,
the
perfect
thread
tension
is
attained.
-
With
BERNINA
sewing
machines
a
numbered
scale
is
not
necessary.
By
means
of
the
adjusting
disc
9
the
thread
tension
can
be
changed
for
special
purposes
wished
for.
If
the
marked
line
is
moving
behind
sight
hole
10
to
the
right,
the
thread
tension
will
be
reinforced;
if
said
marked
line
is
moving
to
the
left,
the
tension
will
be
weaker.
Correct
normal
tension
is
set
when
rig.
13
44
10
9
el
the
mobile
marked
line
is
right
above
fixed
marked
line
on
sight
hole.
Drawing
up
the
under
thread
(Fig.
14)
Before
sewing
can
be
started,
the
under
thread
should
be
drawn
up.
With
thumb
and
forefinger
of
the
left
hand
hold
the
end
of
the
needle
thread,
leaving
it
slack
from
hand
to
needle.
Turn
handwheel
with
one
single
revolution
towards
you,
until,
protruding
from
the
needle
eye,
the
thread
causes
the
needle
lever
to
ascend
to its
highest
position.
Now
draw
a
little
bit
the
end
of
the
needle
thread,
whereby
the
under
thread
will
come
through
the
stitch
hole
towards
above.
Tighten
upper
and
under
thread
slightly
and
pass
them
backwards
under
the
presser
foot.
IF
tP•
rig.
14
17