Shindaiwa EB221S Operator's Manual page 23

Cooling system maintenance
IMPORTANT
To maintain proper engine operating temperature, cooling air must pass freely through the cylinder fin area. This flow of air car-
ries combustion heat away from the engine.
Overheating and engine seizure can occur when:
Air intakes are blocked, preventing cooling air from reaching the cylinder,
or
Dust and grass build up on the out side of the cylinder. This build-up 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.
1. Engine cover
Exhaust system
Cleaning housing cover
1. Housing cover
2. Cylinder fins
Maintenance and care
Tools required: Cleaning brush, Wooden or plastic scraper
Parts required: None
Cleaning Grill
1. Brush accumulated debris from crankcase intake grill above
the fuel tank.
Cleaning Cylinder Fins
1. Remove engine cover.
2. Remove dirt and debris from cylinder fins and crankcase.
3. Reassemble parts in reverse order.
Tools required: Soft metal brush, Hex Wrench
Parts required: None
Clean deposits and debris from silencer.
Tighten silencer bolts.
IMPORTANT
Carbon deposits in silencer will cause a drop in engine output
and overheating.
Remove dust of various sorts, including fallen leaves blocking
the housing cover.
IMPORTANT
Do not remove the housing cover. If necessary, Please consult
your dealer.
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