General Note; Engine Preservation; Return To Service - Rotax 915 i A series Maintenance Manual

GENERAL NOTE

ENGINE PRESERVATION

Storage and preservation requirements for a new
engine
The manufacturer BRP-Rotax guarantees satisfac-
tory corrosion protection of the 915 i A Series aircraft
engines for at least 12 months from the BRP-Rotax
delivery date.
This warranty is subject to the following conditions:
• The engine must be stored in the original packag-
ing delivered by BRP-Rotax.
• The covers must not be removed.
• The engine must be kept in suitable storage
(closed, clean and dry).
If the engine is stored for a period longer than 12
months, the following checks must be carried out
every 3 months.
Step Procedure
1 Remove 1 spark plug per cylinder and
turn the crankshaft manually through 2
full revolutions.
2 Re-install the spark plug.
3 Visual inspection for rust (e.g. propeller
shaft). If rust is found, the engine must
immediately be sent to an authorised
overhauling company for inspection.
m WARNING
Non-compliance can result in serious injuries
or death!
The engine must not be put into operation.
NOTE
The maximum possible storage period of the en-
gine is limited to 24 months.
If this limit is exceeded, following steps are
necessary:
• Removal of gearbox and one cylinder
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BRP-Rotax
MAINTENANCE MANUAL HEAVY
• Visual inspection for possible corrosion on gear
set, propeller shaft, clutch, crankshaft, camshaft,
con rod, piston rings and the valves
• Replace or function test injectors at authorized
overhaul shop.
NOTE
If there is any corrosion of the components, the
engine must be sent to an ROTAX® Authorized
Distributors or their independent Service Center.
• Installation of the removed gearbox and cylinder
• Oil change
• Engine test run
Storage and preservation of an engine which has
been in operation
Thanks to the special cylinder wall coating, the RO-
TAX® aircraft engine does not generally need any
special anti-corrosion measures.
ATTENTION
Storage is possible up to 12 months if the fol-
lowing steps are observed!
Carry out oil change, see Maintenance
Manual Line for the engine type 915 i A
Series.
• Seal all openings, exhaust pipe and air filters on
the cold engine to prevent contamination and
humidity.
• Spray steel parts on the outside with preservation
oil.
• If the engine is out of service for longer periods,
the whole preservation process must be repeated
annually.

RETURN TO SERVICE

See the Maintenance Manual Line for the
engine type 915 i A Series.
Effectivity: 915 i A Series
Edition 0/Rev. 0