Rotax 912 i Series Maintenance Manual page 232

SYSTEM DESCRIPTION
The fuel passes from the tanks via the water trap/
fine filter to the series-connected electric fuel
pumps, from there to the fuel rails, the injection
valves and the fuel pressure regulator.
The fuel pressure must be measured with an
absolute pressure sensor.
ECU
The ECU controls one of the two fuel pumps
through one of the two LANEs. The pilot can
switch on the second fuel pump with an additio-
nal switch if required, if no automatic detection is
present.
FUEL FILTER
Coarse filter
The coarse filter is installed by the aircraft manu-
facturer and is not included in the ROTAX deli-
very.
Fine filter
The fine filter is installed before the fuel pumps
and is not included in the ROTAX delivery.
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
SAFETY INFORMATION
WARNUNG WARNING
During work on the fuel system there is a risk of
injury due to pressure and fuel!
- Always wear safety goggles and gloves
when working on the fuel system!
- Before starting repair work on the fuel sys-
tem, ensure that it is no longer pressurised!
- Ensure that pressure cannot build up again
by disconnecting the electric supply.
- At the workplace, ensure that drained fuel is
handled according to the safety information.
CONNECTIONS FOR DISPLAY SYSTEMS
WARNUNG
Follow the instructions in the installation manual
regarding connections for instrumentation.
PRESSURE SENSOR
The 2 pressure sensors are situated directly on
the airbox and measure the intake air pressure.
TEMPERATURE SENSOR
The 2 temperature sensors are situated directly
on the airbox and measure the intake air tempe-
rature.
NOTICE
73-00-00
Page 4
July 01/2012