Operator`s manual

Drive Sprockets

SPROCKET TROUBLESHOOTING

Most sprocket problems are caused by loose chain

tension and failure to replace the sprocket or clutch

drum when necessary.

Sprockets are inexpensive. One worn inexpensive sprocket

can rapidly damage an expensive chain and bar. Do not

try to save money by running new chains on old sprockets.

Look for the conditions below and replace sprockets and

clutch drums promptly.

If your saw has a chain brake, check the chain

brake’s action according to the instructions in

your saw operator’s manual. Be sure the chain-

brake strap around your clutch skirt is not too

tight when the brake is not engaged, which can

lead to clutch-drum overheating and failure.

Look closely at your sprocket and compare it to the fol-

lowing illustrations. See the following page for remedies

to these problems.



Worn outer surfaces on rim Worn inner surface on rim

sprockets or spur sprockets. sprockets, or wear on the

Remedy: See Z. adapter’s splines.

Remedy: See AA.

PROBLEM

Sprocket/Clutch drum failure

NOTE

CONTINUED…

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