AEROPRAKT 484, Pilot Operating Handbook, Page: 41 / 53

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AEROPRAKT-22L 2 Pilot Operating Handbook A22L2-POH - 02
8 Aircraft Ground Handling and Servicing
8.1 General
This section contains recommendations on aircraft ground handling and servicing
important for safe and efficient operation of this aircraft. Besides owners/pilots should keep
contact with the aircraft manufacturer in order to obtain in time all service bulletins relevant
to their aircraft.
8.2 Servicing fuel, oil and coolant
Pilots must check level of fuel, oil and coolant during preflight checks.
Use only those grades of fuel, oil and coolant that are recommended by the Rotax engine
operation manual.
Fuel tank inlets in A-22L2 are not fitted with a fuel filter/strainer therefore fuel must be filled
into the tanks using fuel pumps or/and funnels with a fine mesh.
Fuel residue must be drained regularly from the tanks via the drain valve into a clean
transparent container for checking .
WARNING: At all times take care not to spill fuel on the cockpit glass - fuel may cause
glass dimness and cracks.
When checking oil and coolant level follow the instructions of the Rotax engine operation
manual.
If the engine is not operated for long time, oil from the engine will flow to the lowest point of
the lubrication system, i.e. oil tank. So before checking the oil level on the cold engine
open the oil tank, remove and clean the oil probe and turn the propeller several times until
you hear the sound of air bubbles coming into the oil tank which means that the oil from
the oil tank was pumped thus into the engine forcing the air from it back into the oil tank.
Wait a little while the oil lets out the air bubbles and insert the oil probe to see the actual oil
level.
WARNING: Do not turn the propeller against the direction of engine rotation - this may
damage the engine.
CAUTION: Do not open the expansion tank of the cooling system while engine is hot!
Coolant is under pressure and may burst out and bring injuries or harm.
8.3 Towing and tie-down instructions
A-22L2 may be towed manually or using any suitable towing device (towing block, car,
etc.).
Before towing the airplane, make sure that the parking brake is off and the wheels are not
blocked by chocks or anything else
.
When towing use strong areas of the airplane structure for pulling/pushing, e.g. propeller
blades near the spinner, wing struts near their attachment points, nose wheel axle for
attaching a towing bar.
For easier towing the airplane backwards hold it by the leading edge of the fin or stabilizer
near their forward attachment points and press the tail down to lift the nose wheel up.
Before doing this, make sure that there is no heavy load in the cockpit.
Tie the airplane down with its nose into the wind (preferably) or at least across the wind
but never tail to the wind to avoid damaging the control surfaces .