CS-450 MAINTENANCE
© 09/2013 ECHO Inc.
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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.

Setting Saw Chain

• For setting saw chain, round file 33SL : 4.5 mm (1/8 in.) dia. or
20BPX, 95VP : 4.8 mm (3/16 in.) dia. and flat file are used.
• Push file as shown.
• To keep correct position and correct angle, use a file holder.
• Hold the file tipped 10° upward.
Right hand cutter
Left hand cutter
Preset tie strap
Top plate
Side plate
Depth gauge
Drive link
Tie strap
Guard link
For more information
scan this QR code.
Sharpen lower edge
33SL: 25°
Keep this angle
20BPX, 95VP: 30°
10°