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MAINTENANCE
This requirement also applies to all U.S. Forest Service lands. In some of
these areas, the spark arrester system must be certified per USDA Forest
Service Regulation SAE J335.
Check with your local or state authorities for specific regulations in your
area. Failure to follow these requirements is a violation of the law.
Spark Arrester Screen
Carbon deposits in muffler will cause drop in engine output and
overheating. Spark arrester screen must be checked periodically.
Remove air filter cover and remove
1.
spark plug lead.
Remove spark arrester cover (A) and
2.
screen (B) from muffler (C) body.
3.
Clean carbon deposits from muffler
components.
4.
Replace screen if it is cracked, or has
holes burned through.
5.
Assemble components in reverse order.
Note: When cleaning carbon deposit, be careful not to damage the
catalytic element inside muffler.
Setting the Saw Chain
Drive link
Tie strap
Right hand cutter
Important points for proper maintenance of saw chain:
• Keep the cutters sharp at all times.
• Keep the left and the right cutters properly aligned.
50
Preset tie strap
Left hand cutter
Guard link
C
B
A
Top plate
Side plate
X7503312606
© 02/24 ECHO Incorporated
491
Depth
gauge
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