Replacing the Chain Sprocket
On
machines without chain brake
Remove chain sprocket cover and cutting attachment.
Carefully pry off spark plug terminal, loosen spark
p'lug
with
combination wrench and remove it from the cylinder. Then
pull out starter rope until you can wind the rope end approx.
3 times around the handle bar,
This prevents the starter rope from breaking when tighten-
ing the clutch,
To
lock the crankshaft screw locking screw into the cylinder
by hand until it butts.
Attention: The clutch has a left hand thread! Therefore
unscrew it by turning it clockwise.
Loosen clutch with the combination wrench (SW
13)
and
remove it. The clutch shoes are held
in
place by a retainer
washer behind the clutch, When properly installed the pro-
jecting rim of the retainer washer must point towards the
clutch carrier. Now remove retainer, chain sprocket and
needle cage from crankshaft.
Before reassembling the parts, wash needle cage
in
clean
gasoline and lubricate it with some
baU
bearing grease,
Then put needle cage, chain sprocket and clutch retainer
(make sure
to
install correctly) back into place on crank-
shaft, Screw clutch onto crankshaft by hand. Unwind
starter rope from handle frame and hold it with your left
hand. Now tighten clutch with the combination wrench
until piston bottoms on the crankshaft locking screw, at
the same time let starter rope glide back slowly,
Now tighten clutch securely and reinstall the other parts by
reversing the disassembly sequence.
Top: Starter rope wrapped round handlebar
Center: Removing clutch
Bottom: Disassembly of clutch and sprocket
31
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