Bernina 1230 - Test P2; Sewing a Buttonhole Procedure

What
is
to
be
tested
What
to
adjust
Normal
condition
a)
Sewing
a buttonhole
lights-up
I
-
Press
button
for
required
buttonholer
AUTO
(button
13,
or 14)
-
sews
the
first
bead
- Depress
foot control
- As
soon as
the first
bead
has
reached
the
correct
length,
press
button
for
automatic buttonholer.
_m
-
sews
the
first
bar
tack,
then
the
second
bead.
- LED
changes
to
f lights-up
-
If the
two beads
have
been
sewn
with
-
sews the
second
bar
tack,
casts
over
differing
densities
then
check
and then
stops
sewing.
forward/reserve equalization using
service
programme
5.
- Machine
returns
to initial
position.
In normal
operation
a correction
is
possible
with
the balance
buttons
+.
Important:
The following
components
should
be
replaced
if equalization
faults
occur
after setting
potentiometer
A +
B, when
sewing
automatic
buttonholes.
Buttonhole
foot -
S-1230
print
-
Ret-print. Please
do not forget
to execute new
equalization.
*