MAINTENANCE HCA-2620
30 X7502342200
© 5/2017 ECHO Inc.
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 (A).
3. Remove engine cover (B).
DO NOT use a metal scraper to remove dirt from the cylinder fins.
4. Use brush to remove dirt from
the cylinder fins.
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