Echo CS-490 Operator's Manual - Setting The Saw Chain
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CS-490
SETTING THE SAW CHAIN
Sharpen lower edge
Drive link
Tie strap
Right hand cutter
Preset tie strap
Left hand cutter
Guard link
Top plate
Side plate
Depth gauge
Important points for proper maintenance of saw
chain:
• Keepthecutterssharpatalltimes.
• Keeptheleftandtherightcuttersproperly
aligned.
- Note that blunt or irregular cutters will result in
poor cutting performance, increased vibration
of chains and premature breakage of the saw
chain.
• Drivelinkservestoremovesawdustfromthe
groove of the guide bar.
Keep the lower edge of the drive link sharp
where indicated.
SETTING SAW CHAIN
• Forsettingsawchain,roundfile4.8mm
(3/16 in.) diameter and flat file are used.
• Tokeepcorrectpositionandcorrectangle,use
the file holder (Sure Sharp
®
).
Hold the file tipped 10° upward
10°
Push file as shown
Keep this angle
30°