Rotax 912 i Series Maintenance Manual page 239

Fuel line assy. and fuel rails
The fuel line assy. from the tank to the fuel
pump, to the fuel rail of cylinders 1 and 3 and
also the fuel return line from the fuel rail for cylin-
ders 2 and 4 are made by the aircraft manufactu-
rer.
The fuel line assy. on the engine consists of
steel.
Bubble trap – see aircraft manufacturer
Water trap – see aircraft manufacturer
Fuel cock – see aircraft manufacturer
SAFETY INFORMATION
WARNUNG WARNING
Danger of severe burns and scalds! Always
allow the engine to cool down to ambient tem-
perature before starting any work.
WARNUNG WARNING
During work on the fuel distribution system/fuel
pump there is a risk of injury due to pressure and
fuel!
Before starting repair work on the fuel system,
ensure that it is no longer pressurised!
Effectivity: 912 i Series
Edition 1/Rev. 0
BRP-Powertrain
MAINTENANCE MANUAL
MAINTENANCE
As well as the maintenance and special checks,
see the relevant Maintenance Manual Line for
the respective 912 i Series engine type.
REMOVAL
Preparation
Before the fuel distribution system/fuel pump is
removed, the work described below must be car-
ried out to identify any further faults in the fuel
distribution system and rectify them as part of
the repair work.
WARNUNG
If these checks are omitted, it may be necessary
to dismantle the fuel distribution system again to
rectify any faults after it has been repaired.
- General visual inspection. See relevant Main-
tenance Manual Line for the 912 i Series
engine type.
- Carry out an engine test run. See relevant
Maintenance Manual Line for the 912 i Series
engine type.
- Functional check of the fuel distribution sys-
tem assy.
- Check that the system is leakproof.
- Check the injection valves. Check the "spray
pattern" using the map.
- Measure the resistance of the injection val-
ves. To do this, see section 76-70-00 Sensors
and actuators.
- Check the fuel pressure regulator with a pres-
sure gauge in the static operating state.
- Check that the fuel filter in the feed line is
clear.
NOTICE
73-10-00
Page 7
July 01/2012