Aeropro CZ A220, Maintenance Manual

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Maintenance Manual
AEROPRO CZ 10-9
Maintenance Manual
March 21, 2020
10.10 Accessories removal
Removal of engine accessories for overhaul or for engine replacement involves stripping the
engine of parts, accessories, and components to reduce the engine assembly to the bare engine. During
removal, carefully examine removed items and tag defective parts for repair or replacement by a new
part.
10.11 Inspection
For specific items to be inspec
ted refer to engine manufacturer’s manual.
a.
Visually inspect the engine for loose nuts, bolts, cracks and cooling fin damage.
b. Inspect brackets for cracks, deterioration and breakage.
c. Inspect all hoses for internal swelling, chafing through protective plys, cuts, breaks, stiffness,
damaged threads and loose connections. Excessive heat on hoses will cause them to become
brittle and easily broken. Hoses and lines are most likely to crack or break near the end fittings
and support points.
d. Inspect for color bleaching of the end fittings or severe discoloration of the hoses.
e.
All flexible fluid carrying hoses in the engine compartment should be replaced at engine overhaul
or every five years, whichever occurs first.
f.
For major engine repairs, refer to the manufacturer’s overhaul and repair manual.
10.12 Engine build-up
Engine build-up consists of installation of parts, accessories and components to the basic engine
to build-up an engine unit ready for installation on the aircraft. All safety wire, lock washers, plain nuts,
elastic stop nuts, gaskets and all rubber connections should be new parts.
Caution
Particular care should be given to electrical equipment before cleaning. Solvent
should not be allowed to enter magnetos, starter, alternator and the like. Hence,
protect these components before saturating the engine with solvent. Cover any fuel,
oil and air openings on the engine and accessories before washing the engine with
solvent. Caustic cleaning solutions should be used cautiously and should always be
properly neutralized after their use.
Note
Items easily confused with similar items should be tagged to provide a means of
identification when being installed on a new engine. All openings exposed by the
removal of an item should be closed by installing a suitable cover or cap over the
opening. This will prevent entry of foreign particles. If suitable covers are not
available, tape may be used to cover the opening.
Note Avoid excessive flexing and sharp bends when examining hoses for stiffness.