Echo X7503196704 - Manual (Page 29)

29
CS-450
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
guage
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
Proper filing tools for setting saw chain are avail-
able from your Echo dealer.
• For setting saw chain, round file (33SL : 4.5 mm
dia. or 20BPX, 95VP : 3/16 in.) and flat file are
used.
• To keep correct position and correct angle,
use the file holder (Sure Sharp ® ).
Hold the file tipped 10° upward
10°
Keep this angle
Push file as shown
33SL : 25°
20BPX, 95VP : 30°