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Drive Sprocket Maintenance


6. l Clean any build-up of sap or debris from splined hub so rim drive sprocket can float freely.


7. u Do not run old saw chain on a new drive sprocket, or a new saw chain on an old drive sprocket*. Use two new saw chains in rotation with each new drive sprocket so all can wear together. Replace drive sprocket every two saw chains, or sooner.


8. u Apply clean lithium-based grease to the clutch drum’s bearings each time the drive sprocket is removed.


*See top of page 68 for drive sprocket wear-depth indicators. 70


DRIVE SPROCKET


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