32
Replacing
the
chain sprocket
Remove chain sprocket cover and cutting attachment.
Loosen and remove
spari<
plug
with
combination wrench.
Screw locking screw from your tool set Into cylinder
and
tum crankshaft clockwise until the piston rests against the
locking screw thus locking the crankshaft.
On
090/090
AV
proceed as follows:
Loosen hexagonal nut with combination wrench.
Attentionl
The
hexagonal
nut
is
of
lell
hand
thread-
loosen
clockwise!
Remove front washer, spacer ring, clutch, spiet-sleeve,
rear washer, chain sprocket
and
needle cage.
Clean needle cage in clean gasoline and grease
with
roller bearing grease.
When replacing the chaln sprocket assembling is done
in
reverse sequence. Thereby care has to be taken that the
rear washer with the arched Indent at Its outer diameter
is pointing towards the crankcase.
Tighten hex. nut with torque wrench at a torque ot 5.0
kpm
(36.2 Ibf. ft.).
On the 090 G the chain sprocket is held
In
place
with
pipe
plier;
and
the crankshaft nut is loosened by turning
left:-
anticiockwlse. Remove washer underneath the nut
and
pull off chain sprocket by means
of
special puller
1109
890
4401.
Top:
Inserted
locking
saew
Center.
Loosening the crankshaft nut (090/090
AV)
Bottom:
Sequence
of
component
parts (090/090
AV)
••
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