d04923.fm
INSTALLATION MANUAL
BRP-Powertrain
Effectivity: 912 Series
Edition 2/Rev. 0
73-00-00
page 3
August 01/2012
1) Fuel system
1.1) Description of system
General note See Fig. 2.
NOTE: The fuel system from tank to the inlet of engine-driven fuel
pump has to be installed by the aircraft manufacturer.
Fuel The fuel flows from the tank (1) via a coarse filter and fire cock (3) con-
tinue to water trap/fine (4) to the mechanical fuel pump (5), from the
pumps fuel passes on via the fuel manifold (3) to the two carburetors.
Fuel lines Depending on the configuration of the engine the fuel lines from fuel
pump to the carburetors are already installed by the manufacturer
(optional on some engine).
Only the following connections per Fig. 2 have to be established:
- Feeding lines to suction side of the mechanical fuel pump (5).
- Lines from pressure side of the mechanical fuel pump to inlet of fuel
manifold (6).
- Returnline from fuel pressure control to fuel tank.
Return line Via the return line (5) surplus fuel flows back to the fuel tank and suction
side of fuel system.
NOTE: The return line prevents malfunctions caused by the for-
mation of vapor lock.
Components The fuel system includes the following items:
- Tank
- Coarse filter
- Fine filter/water trap
- Fuel shut off valve
- Electrical fuel pump
- Manometer
- Return line from tank to engine (with integrated adapter sleeve)
as well as the required fuel lines and connections.
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