Europa Aircraft Rotax 914, Руководство по установке

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9. Commissioning the engine
Overview
Before commissioning the engine read the Rotax Installation Manual again to make quite sure that
nothing has been omitted. At this stage the throttle 100% setting will be established. There are
several other checks that need to be made as part of commissioning the engine. You need to be sure
that there are no restrictions in the oil lines or the fuel lines, and that the engine oil system is fully
primed before first start up. You also need to check that both the electric pumps provide sufficient
flow to the carburettors.
Note: Refer to the Final Inspection Checklist in appendix A before commencing commissioning.
A limited amount of test equipment is necessary for commissioning, and a kit is available from
Europa Aviation on hire to carry it out.
Throttle setting
The engine is fitted with a 9 pole RS232 plug; this has to be connected via a special cable with a
“dongle” to a PC. More recently Rotax have removed the requirement for a special cable, and a
conventional RS232 connector cable can be used. On earlier engines the part number on the TCU
will be 966471, 966472 or 966473; these engines have a TCU at rev.4.5 and a dongle will be
required: the appropriate software is 4.5. Newer engines have a TCU part number 966741- a dongle
is not required and the TCU and software are at rev. 4.6. The software required must be installed in
the PC. The cable and software are available on hire from Europa.
With the master switch of the aircraft on, run the program - detailed instructions are included in the
Rotax Installation Manual. This will check that the throttle in the closed position corresponds to 0%,
in the fully open position corresponds to 115%, and will enable you to mark the 100% position.
It is recommended that you make a gate or detent at the 100% position to avoid the possibility of
exceeding this power setting in normal flight.
Coolant system
Fill the system with a 50/50 mixture of a good quality antifreeze and water.
Oil system
It is necessary to check that the suction at the oil pump inlet is not excessive. Rotax specify a
maximum depression of 0.3 bar (4.4 psi) below ambient pressure at the oil pump inlet at full throttle.
To check this a ‘T’ piece must be inserted into the oil pump suction line. Because this test has to be
done with the engine running at full throttle it will be carried out later.
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Europa XS Rotax 914 Engine Manual Issue 5 September 2002