10
Check that the ignition switch is off.
Check carburetor rubber flange for cracks, signs of wear, etc.
Check carb for secure attachment.
Check carburetors for proper tuning and adjustment, as required for climatic changes such
as temperature, pressure, field altitude, etc.
Drain a small quantity of fuel from fuel tank(s) sump. Remove any accumulated water and
dirt.
Check carb float-bowl for water, dirt, sediment, etc. Drain.
Check condition, security and cleanliness of air filter.
Check fuel system to be free of leaks and seepage. Check for security and condition.
Check fuel filter.
Check engine for fuel and/or air leaks. Example: Around intake system, cylinder base,
cylinder heads, exhaust manifold, etc.
Check all ignition wires for condition, security, and proper function.
Check all engine wires for condition, security, and proper function.
Check ignition-mounting points for wear, secure attachment, condition, etc.
Check engine mount & mounting parts for security, cracks, condition, etc.
Check operation and stops of controls such as throttle, choke, etc. Further, check for secure
attachment, condition and smooth action.
Rotate engine by hand on propeller. Listen and feel for unusual occurrences. It is wise to
remove the spark plug caps or some other positive way to ensure that the engine will not fire.
Check propeller for secure attachment, and condition (nicks, cracks, crud, etc.)
Check spark plug caps for security, condition.
Check exhaust system for security, condition, cracks, wear, broken springs, etc.
Check gearbox for oil leaks (if equipped)
Check belt reduction for serviceability, adjustment, condition of belt, etc. (if equipped)
Check propeller shafts bearings for damage and/or play by rocking propeller.
Check all systems functional and top condition.
Check that all fasteners are tight.
Check fan belt for tension, wear, inversion, and blockages, etc if equipped with fan cooling.
Check that items such as animals, insects, sand, ice, snow, or other foreign matter have not
become lodged in the engine area.
Check engine, reduction unit and all other ancillary components for loose or missing nuts,
bolts and other fasteners, parts and pieces.
Check all other points for condition, operation, security, leaks, condition and serviceability,
etc. necessary.
Check that fuel level is adequate for proposed operation.
Check accessories and other ancillary equipment for security, condition, operation,
adjustment, serviceability, etc. as appropriate.
Complete pre-start check.
Complete run-up procedure.
Summary of Contents for F-23
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