Applicable to: B22 and B25 (a ll versions)
Revision 1.3 – 02/24/ 2015
Manual B – Operations
-
79
b.
Gradually reduce the rotation speed by adjusting the throttle.
Thanks to the adoption of the liquid cooling system the risk of the sudden drop
of oil and water temperature is avoided during prolonged descent with the
engine idling.
c.
When using a constant speed propeller, put the propeller in the minimum pitch, while
reducing the speed by adjusting the throttle.
d.
Always gradually control the throttle, without subjecting the engine to rapid regime changes.
B.7.3.8. Engine Switch off
a.
After landing, keep the engine running at low speed for at least 1 minute, in order to
standardize the temperatures of all components and avoid thermal shock.
b.
Switch off all utilities in the meantime, including the auxiliary fuel pump if present.
c.
Stop the engine using the auxiliary ECU first and then the main ECU.
This procedure prevents jerking the propeller while stopping the engine. The ADC
system is handled by the main ECU only. Acting in a different way can cause
problems to the starter.
d.
After stopping the engine, switch off the main switch (master).
B.7.3.9. Use of the Engine in Winter Season
If using the engine during winter or in a cold climate area you must follow the instructions below:
a.
Coolant
Increase the proportion of water-antifreeze mixture in accordance with the paragraph B.7.2.1
and the manufacturer's instructions.
b.
Lubricant
Make sure the engine and gearbox lubricant thermal grade used is in compliance to what is
specified in B.7.2.2 and B.7.2.3.
c.
Cold Start
Throttle closed.
Make sure that the battery is fully charged to run the engine at least 150-180 RPM. Otherwise
recharge before attempting to start. In case the installed battery is not enough to ensure an
adequate start regime, use a second battery connected in parallel to the first.
Use the electric starter for short periods (10 seconds maximum). During starting attempts
power off and on the main ECU switch: this produces a further enrichment in the carburetion.
d.
If the Engine Doesn’t Start
o
Open the throttle slightly.
o
Replace the spark plug.
o
Reduce the spark plug air gap to 0.5 mm (regardless of the type of candle used), to
facilitate the ignition of the spark.
o
Use an engine oil that is less viscous.
o
Run the engine for 20 seconds without spark plug.