Use and Care Manual

CS-400 MAINTENANCE

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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 air cleaner cover,

cylinder cover, and starter.

2. Use compressed air or wooden tool to remove dirt and dust from

between fins to let cooling air pass easily.

Worn: 0.5 mm (0.020 in.)

Cylinder

fins