Reference Modification no.
- 0 -
Page
150
Date
1997 02 01
Main
914 F
01478
13.2.8) Oil tubes
â– ATTENTION: The oil tubes (not part of engine supply scope) have to be
serviced as per aircraft manufacturer's specifications.
In addition the following maintenance work should be done:
Clean oil feed tube from oil tank to oil cooler and to oil pump and check
visually. The same applies to the oil return tubes. Pay special attention to the
tube ends. For replacement, only use genuine, approved tubes. For fixation
of the tubes use suitable tube clamps or crimp connections.
â– ATTENTION: Use oil tubes and tube clamps as specified in the aircraft
manufacturer's Manual.
13.2.9) Oil cooler
â– ATTENTION: The oil cooler (not part of engine supply scope) has to be
serviced as per aircraft manufacturer's specifications.
In addition the following maintenance work should be done:
Clean oil cooler fins and straighten them, if necessary. Rinse the oil cooler
inside. This is absolutely necessary after an engine failure. Visually check the
oil cooler body and the connections. Test the oil cooler for leakage.
13.2.10)Venting of lubrication system
Fill oil tank with approx. 2 litres (0,53 gal.US) motor oil. See Chapter 8). Start
engine and observe oil pressure indication. Within 10 seconds the oil
pressure must rise to min. 2 bar (30 psi). Otherwise stop the engine instantly
and vent suction line between oil tank and oil pump.
Remove suction line from oil tank and refill with oil using a funnel. By a few
manual turns of the propeller the pump sucks oil.
â–² WARNING: For safety, switch off ignition and remove ignition key!
Refit oil line and start engine again. After short idling, stop the engine and refill
oil level in the tank to max. mark. Do not overfill, otherwise oil would exit
through vent bore during operation. At oil level check the max. mark must not
be exceeded.
â–² WARNING: Always observe the engine while running from a secure
place.
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