Operator`s manual

Drive Sprockets

BASIC SPROCKET-MAINTENANCE TASKS (CONTINUED)

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Chain tension is especially important when the

saw is tipped on its side during felling cuts. Loose chain

(and rim-type sprocket, if used), will slide down and out

of alignment with the bar. Loose chain tension is the

leading cause of sprocket problems.

●

Clean any buildup of sap or debris from splined hub

so rim sprocket can float freely.

◆

Do not run old chain on a new sprocket, or a new

chain on an old sprocket. Use two new chains in rotation

with each new sprocket so all can wear together.

Replace sprocket every two chains, or sooner.

◆ Apply clean grease to the clutch drum’s bearings

each time the sprocket is removed.

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