Bernina 900 electronic - Feed Dog Drop and Vertical Motion

Fig, 48
Depth limit stop for drop feed Feed dog movement
(Vertical)
Setting coller (76) acts as a limit
stop for Raising and lowering
of the feed dog
the feed dog at its
lowest position must properly
synchronize with needle
The
lowest point of the feed doq shou
d mot on, It the loop lift stroke,
return mo.
be limited in
such a manner
that it will tio,
and needle bar
height are preperly
not touch the
thread guide plate under adjusted
the lowering phase of the
feed
any circumstances,
Set feet dog lowering dog
must automatically occur at
the right
knob (21)
to the *Sewing". position ten- time,
Thore are no other possibilities
for
gage).
Set feed dog to its lowest position correction
by rotating handwheel,
Disengage teed dog, i e
set the feed dog
lowering knob to the ,Darning,,
position,
Then, there should sti9l
be approximately 69
0.2 mm play
until setting ring (76) with
stop limits the downward
motion of the
feed dog,
It necessary, loosen
screw (77) and
fix n
setting
ring (76) with stop in the specified
72
position. When resetting. make
sure that
axial play does not exist,
Fig, 49
26