DRIVE SPROCKETS
70.
DRIVE SPROCKETSUSEFUL INFORMATION
SPROCKET TROUBLESHOOTING
REMEDIES: (Z-DD)
Z. Such outer surface wear is normal over time. Replace rim sprockets
and spur sprockets when wear is 1/64" (0,4mm) deep. Never run
chain on severely worn sprockets. Severely worn sprockets could
break during operation. (picture 40)
AA. Such wear indicates that chain drive links are bottoming out on
the adaptator’s splines. Replace the clutch drum. Replace the rim
sprocket. (picture 41)
BB. Do not attempt to repair cracked or broken clutch drums. Replace
the drum. (picture 42)
CC. Replace the drum. Have your chainsaw dealer adjust the chain-
brake strap. (picture 43)
DD. Replace the drum. Have your chainsaw dealer service the saw’s
clutch. (pictures 44)
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