2) Fuel Pressure - Rotax 912 Series Maintenance Manual

Effectivity: 912 Series
AIRCRAFT ENGINES
MAINTENANCE MANUAL II

13.1.3.2) Fuel pressure

See fig. 050.
Fuel pressure at fuel pump is limited to max. 0,4 bar (5,8 psi),
and is normally between 0,15 ÷ 0,3 bar (2,2 psi ÷ 4,4 psi). By
utilizing the fuel pressure tester, part no. 874 230, the pressure
as well as the operation of the fuel system can be checked.
Installation of fuel pressure test kit
Connect pressure gauge Q with hose W instead of fuel return
line on the four-fold banjo screw E. Attach the pressure gauge
where it can be easily observed by the operator of the ground
test run.
ATTENTION: Make sure there is no danger that the gauge
If during the test run the nominal fuel pressure values are not
met, stop engine and start with the trouble shooting procedure.
WARNING:
and hose get drawn into the propeller air
stream. If necessary, secure with cable ties.
Do not start the aircraft before an obvious
fault has been found and eliminated!
00365
3
2
1
fig. 050
page 42
Initial issue, Jan. 01/2002