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MAINTENANCE
Cylinder fins
2. Dust and grass build up on the outside of the
cylinder. This buildup insulates the engine and
prevents the heat from leaving.
Removal of cooling passage blockages or cleaning
of cylinder fins is considered “Normal
Maintenance”. Any resultant failure attributed to
lack of maintenance is not warranted.
F. CLEANING THE CYLINDER FINS.
(Check Periodically)
1. Remove any dust and dirt from between the fins.
2. If greater access is needed to thoroughly clean
the fins, remove the engine cover as illustrated.
G. CLEANING THE EXHAUST PORT.
Gasket
Exhaust port
Muffler
Plate
1. Remove the muffler and gasket.
2. Place the piston at top dead center. Clean any
deposits from the muffler and the cylinder
exhaust port with a nonmetallic scraper.
This procedure requires specialized engine service
techniques and the proper tools. Contact the
authorized Cub Cadet Commercial dealer where
you bought your trimmer or your nearest Cub Cadet
Commercial Service Center.
IMPORTANT
Do not use a metal tool to scrape carbon from
the exhaust port. Be careful not to scratch the
cylinder or piston when cleaning the cylinder
exhaust port.
3. Inspect the gasket, and replace it if necessary.
4. Install the muffler.
5. Fit the gasket and cover.
H. CLEANING THE CLUTCH AND
CLUTCH DRUM.
Clutch
Clutch drum
1. Loosen the four screws and remove the fan
housing.
2. Clean the dirty clutch and clutch drum.
3. Always replace a damaged clutch and clutch
drum.