CS-4920 MAINTENANCE
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© 09/2022 ECHO Incorporated
Fuel Filter
• Check periodically.
• Do not allow dust to enter fuel
tank.
• A clogged filter (A) will cause
difficulty in starting engine or
abnormalities in engine
performance.
1. Pull filter out through gas port,
and inspect filter.
Do not damage fuel line while removing fuel filter from tank.
2. When the filter is dirty, replace it as follows:
3. Do not remove the wire coil clamp to remove the fuel filter. Pinch the
fuel filter with the fingers on one hand and the fuel line with the other
hand. Pull and twist slightly to separate.
4. Install the new filter with the reverse action.
5. When the inside of the fuel tank is dirty, rinse the tank out with gasoline
to clean it.
Note: Federal EPA regulations require all model year 2012 and
later gasoline powered engines produced for sale in the
United States to be equipped with a special low permeation
fuel supply hose between the carburetor and fuel tank. When
servicing model year 2012 and later equipment, only fuel
supply hoses certified by EPA can be used to replace the
original equipment supply hose. Fines up to $37,500 may be
enforced for using an un-certified replacement part.
Automatic Oiler
• The discharge volume of the
automatic oiler is adjusted to
approximately 7 mL/min at
7000 RPM, prior to shipment from
factory.
• Always check oil discharge when
in use.
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