67.
DRIVE SPROCKETS
DRIVE SPROCKETS
OREGON
®
SPROCKET MAINTENANCE
ATTENTION:
DEALERS, CHAINSAW USERS, AND ANYOME WHO
SERVICES DRIVE SPROCKETS-IMPORTANT SAFETY INFORMATION.
Your drive sprocket, the third member of the cutting team, deserves
regular attention and maintenance just like your bar and chain. A
misused sprocket will cause patterns of chain wear which can damage
the guide bar and reduce the life of all three components. A damaged
sprocket cannot be repaired, it can only be inspected and replaced.
Here are the things to look for, and the steps to take.
BASIC SPROCKET-MAINTENANCE TASKS
▲ Before each use. ● Daily.
■ Often (Hourly, or at ◆ Weekly, periodically.
refueling).
1. ▲● 2. ▲●
3. ▲● 4. ▲■
WARNING
Always turn your saw’s engine before handling the drive sprocket.
Failure to do so can result in sever injury.
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