CS-3410 MAINTENANCE
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© 10/23 ECHO Incorporated
Sprocket
• A damaged sprocket will cause
premature damage or wear of saw
chain.
• When the sprocket has worn
0.5 mm (0.020 in.) or more, replace
it.
• Check sprocket when you install
new chain. Replace it if worn.
Some tree sap and resins are corrosive. Thoroughly wash the guide
bar and sprocket areas after each use, then coat metal parts with light
oil.
Cooling System Cleaning
• Check periodically.
• Clogged fins will result in poor
engine cooling.
1. Remove cylinder cover.
2. Use compressed air or wooden
tool to remove dirt and dust from
between fins to let cooling air
pass easily.
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