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page 10 - 13
Jan. 01/2007
Effectivity: 912 Serie
OM Edition 1 / Rev. 0
BRP-Rotax
10.3) Standard operation
To warrant reliability and efficiency of the engine, meet and carefully observe
all the operating and maintenance instructions.
10.3.1) Daily checks
▲ WARNING: Risk of burnings and scalds!
Conduct checks on the cold engine only!
▲ WARNING: Ignition "OFF". Before cranking the propeller switch
off both ignition circuits and anchor the aircraft. Have
the cockpit occupied by a competent person.
■ CAUTION: If established abnormalities (e.g. excessive resis-
tance of the engine, noises etc.) inspection in
accordance with the relevant Maintenance Manual
is necessary. Do not release the engine into ser-
vice before rectification.
Coolant level:
■ CAUTION: The coolant specifications of the section 10.2 Oper-
ating media are to be observed.
— Verify coolant level in the expansion tank, replenish as required
up to top.
The coolant level must be at least 2/3 of the expansion tank.
— Verify coolant level in the overflow bottle, replenish as required.
The coolant level must be between max. and min. mark or at least
0.2 litre (0.4 liq pt).
Check of mechanical components:
Turn propeller by hand in direction of engine rotation several times
and observe engine for odd noises or excessive resistance and
normal compression.
Gear box:
— Version without overload clutch:
No further checks are necessary.
— Version with overload clutch:
Turn the propeller by hand to and fro, feeling the free rotation of 15°
or 30° before the crankshaft starts to rotate.
If the propeller can be turned between the dogs with practically no
friction at all (less than 25Nm = 222 in.lb) further investigation is
necessary.
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