Feasible Position And Location Of The Oil Cooler; General Notes On Oil Cooler; Filling Capacity - Rotax 912 Series Installation Manual

13.7) Feasible position and location of the oil cooler

See Fig. 50.
- On principle the oil cooler (5) has to be installed below the oil pump of the
engine.
■ CAUTION:
- If this position is not practical, install the oil cooler with connections upwards
i.e. in positive direction on z-axis.
■ CAUTION:
▲ WARNING: The oil cooler has to be planned and installed such that the

13.8) General notes on oil cooler

BRP-Rotax offers for this engine an oil cooler (see Illustrated Parts Catalog,
latest issue).
▲ WARNING: Certification of this cooler to the latest requirements such as
■ CAUTION:
◆ NOTE:
■ CAUTION:

13.9) Filling capacity

- Oil quantity without oil cooler and connecting lines min. 3 l (0,8 US gal)
depending on the respective installation
Volume of oil tank
up to the MIN.-mark.......................... approx. 2,5 l (0.66 US gal)
up to the MAX.-mark ........................ approx. 3,0 l (0.8 US gal)
- Perform oil level check and add oil if necessary
Effectivity: 912 Series
Edition 1 / Rev. 0
BRP-Rotax
INSTALLATION MANUAL
The oil cooler has to be installed with connections upwards i.e.
in positive direction on z-axis. This will prevent an unintentional
draining of the oil cooler at longer engine stop.
This will prevent an unintentional draining of the oil cooler at
longer engine stop.
specified operating temperatures are maintained and the max.
values are neither exceeded nor fall below.
This state has to be warranted for "hot day conditions" too!
If need be, take appropriate measures like changing size of
cooler, partial covering of cooler etc.
FAR or EASA has to be conducted by the aircraft manufac-
turer.
The oil cooler has to be designed to dissipate approx. 8 kW
(7,58 BTU/s) heat energy at take-off power.
From years of experience we recommend an oil cooler size of
2
at least 160 cm (25 in
The oil cooler must not restrict oil flow. Test system as per sec
13.3.
2
), provided that air flow is adequate.
page 77
May 01/2007