MAINTENANCE HC-155
28 X7502259500
© 11/2017 ECHO Inc.
Cooling System
Level 2.
To maintain proper engine operating temperatures, cooling air must
pass freely through the cylinder fin area. This flow of air carries
combustion heat away from the engine.
Overheating and engine seizure can occur when:
• Air intakes are blocked, preventing cooling air from reaching the cylinder.
• Dust and grass build up on the outside of the cylinder. This build up
insulates the engine and prevents the heat from leaving.
Removal of cooling passage
blockages or cleaning of cooling fins
is considered “Normal Maintenance.”
Any failure attributed to lack of
maintenance is not warranted.
1. Remove spark plug lead.
2. Remove muffler cover.
3. Remove starter cover.
4. Use brush (not included) to
remove dirt from the cylinder fins.
DO NOT use a metal scraper to remove dirt from the cylinder fins.
5. Assemble components in reverse order.
Exhaust System
Spark Arrestor Screen
Level 2.
Parts Required: None if you are careful.
Parts Required: Spark Arrestor Screen, Gasket
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