d05784.fm
INSTALLATION MANUAL
BRP-Powertrain
Effectivity: 912 i Series
Edition 1/Rev. 2
73-00-00
Page 12
January 01/2014
1.8.3) General requirements placed on the fuel pumps
Power supply
wires
NOTE: If the length of the power supply line is insufficient, it can
be extended. A ROTAX connector set is available.
For use as a power supply line for supplying the fuel pumps off the stan-
dard wiring harness, a line insulated with PTFE, ETFE or higher has to be
used. The construction regulations for each aircraft class are mandatory
and have to be applied and complied with.
Wire size The cross-section of the power supply wire must be at least 1.5 mm²/
16 AWG (0.0023 in²) of stranded, coated copper. The length of the power
supply wire between the harness connector and fuel pump must be
selected so that the voltage drop along the additional wire does not
exceed < 500 mV.
In accordance with the construction regulations, the aircraft manufacturer
or the approved Service Center can also develop their own cable design.
Non-compliance can result in serious injuries or
death!
The pressure in the return line must not exceed the
value stipulated in section 1.4.
Requirement regarding delivery
Min. delivery rate 56 l/h (14.79 US gal/h)
Min. fuel pump pressure 4.5 bar (65.26 psi) absolutely (at sea level)
The responsibility for correct implementation and use
of the power supply wires between harness connector
and fuel pump is up to the aircraft manufacturer or the
authorized Service Center, which performs the work.
The aircraft manufacturer or the approved Service
Center must ensure that the fuel pump is supplied with
sufficient electrical energy to maintain the required
minimum values for the engine and the fuel pressure
and volume flow in each operating state and in every
flight attitude.
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