Bernina 900 electronic - Winder Adjustment; Uniform Bobbin Winding

Winder
The winder
must be
adjusted
in the
following
manner so
that the thread
is
wound evenly
and the bobbin
is properly
lilled:
Uniform
winding If the
thread rises too
high
in the bobbin during winding, loosen
lock nut (156) of the vertically
adjustable
winder prestressing
device (9) and screw
to lower
position. If the thread is too
low
in the bobbin, screw
prestressing device
to higher position
After
completing adjustment, retighten
lock nut (156)
155
151
E-RE
EE;
15
5
W15
7
9
~~~~~~~~~~~~~~~~~~~~~~Fig. 63
Proper filling
of the bobbin
-.
If the bobbin
is insufficiently
tilled
retract
release
lever and
rotate adjusting
disk
156
158
(158) which
is provided
with three
not-
ches
of different depths
for release
lever
Fig,
62
(157) clockwise until the release
lever Fig
gages in the
next notch, If the bobbin is
filled
too much, rotate the adjusting disk
counter-clockwise,
33