CS-4920 MAINTENANCE
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© 09/2022 ECHO Incorporated
When starting, idling adjustment speed should be adjusted to
prevent the saw chain from moving. When you experience
trouble with the carburetor, contact your dealer.
Setting the Saw Chain
Important points for proper maintenance of saw chain:
• Keep the cutters sharp at all times.
• Keep the left and the right cutters properly aligned.
• Note that blunt or irregular cutters will result in poor cutting performance,
increased vibration of chains and premature breakage of the saw chain.
• Drive link serves to remove
sawdust from the groove of the
guide bar. Keep the lower edge
of the drive link sharp where
indicated.
Top plate
Side plate
Depth
Left hand cutter
Preset tie strap
gauge
Guard link
Drive link
Tie strap
Right hand cutter
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