Effectivity: 912 i Series BRP-Powertrain page 3-11
OM Edition 1/Rev. 2 April 01/2014
d05696.fm
Warming up peri-
od
3.6) Holding point control
Ground test
Ignition check Check the double ignition
Check the two ignition circuits at 4000 rpm (approx. 1700 rpm pro-
peller).
LANE and Ignition Check:
Step Procedure
1 Start warming up period at approx. 2000 rpm for approx. 2
minutes.
2 Continue at 2500 rpm, duration depending on ambient
temperature, until oil temperature reaches 50 °C (120 °F).
3 Check temperatures and pressures.
After a full-load ground test allow a short cool-
ing run at idle speed to prevent vapour forma-
tion in the cylinder head.
Step Procedure
1 Short full throttle ground test (consult Aircraft Operators
Manual since engine speed depends on the propeller
used).
If the engine speed drops or any error mes-
sages are present from the EMS then find out
what the cause is and take corresponding ac-
tion to rectify the problem.
Step Procedure
1 Rise engine speed up to 4000 rpm.
2 Turn “OFF“ LANE selector switch A. Observe the rev
counter.
The speed drop may not exceed 180 rpm engine
speed, which corresponds 75 rpm propeller
speed.
3 Turn „ON“ LANE selector switch A.
4 Turn „OFF“ LANE selector switch B. Perform checks in
same way as LANE A.
5 Turn “ON“ LANE selector switch B.
6 Reduce to idle speed.
7 Check power supply and minimum voltage of 12 V at
each LANE.
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