Effectivity: 912 i Series BRP-Powertrain page 3-12
OM Edition 1/Rev. 2 April 01/2014
d05696.fm
NOTE: LANE A and LANE B have different sensor in-
puts. During LANE and IGNITION check some
sensor values are not displayed depending on
the position of the LANE select switches.
Not available sensor values if LANE A = ON and LANE B = OFF:
- Coolant temperature
- Exhaust gas temperatures from cyl. 1-4
- Ambient temperature
- Ambient pressure
- Throttle lever position
Not available sensor values if LANE B = ON and LANE A = OFF:
- Oil temperature
- Oil pressure
Check of fuel
pumps (fuel pump
modules)
It must be ensured that both fuel pumps are working and no loss
of power or uneven running by turning off a fuel pump occurs. The
limits for fuel pressure must not be exceeded
Basic position for the Take-off, both fuel pumps „ON“.
Check the power
output
To check the acceleration and available power, run the engine at
full load with the aircraft stationary for a maximum of 10 seconds
(take the idle speed from the Operators Manual of the aircraft, as
it depends on the type of propeller being used).
Step Procedure
1 Set engine speed to 2000 rpm.
2 Turn auxiliary fuel pump OFF for 5 seconds.
3 Check fuel pressure, then turn auxiliary fuel pump ON.
4 Turn main fuel pump OFF for 5 seconds.
5 Check fuel pressure, then turn main fuel pump ON.
If the fuel pressure is not within the limits, the
cause must be determined. The engine must
not be put into service until the problem is
rectified.
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