Pilot's Operating Handbook
Section 7
Description
Edition 0 - March 05, 2019
Rev. 0
Page 7.6.12
Engine lubrication
Engine oil is in a tank incorporated into the powerplant. It ensures lubrication and
engine cooling. A cooler located on left side in engine compartment maintains oil
temperature within limits. Oil flow into the cooler is metered by a thermostatic valve.
Engine oil also supplies propeller governor and engine torquemeter.
A chip detection system enables the monitoring of engine oil system. The system
includes one chip detector installed on propeller reduction gear box and a second chip
detector installed on engine accessory gear box. In case of chip detection,
CHIP
will
appear on integrated flight deck system screen.
Lubrication system content, cooler included, is 12.7 quarts (12 litres). A graduated
dipstick allows checking oil quantity in system. A visual oil sight glass, located on
engine left side, allows a rapid checking of oil level.
●
NOTE
●
For checking and oil filling-up, refer to section 8.
●
Engine starting
- see figure 7.6.8
Ignition function
Ignition system consists of an ignition unit and two spark igniter plugs in powerplant, a
three-position IGNITION switch OFF - AUTO - ON located on ENGINE START panel
at upper panel.
Ignition unit supplies, from 28-volt source, high voltage current necessary to spark
igniter plugs. When IGNITION switch is positioned to AUTO, ignition unit supply is
ensured during the engine start.
IGNITION
lights on as long as ignition unit is supplied.
Auto ignition function
When Ng is lower than 51 % and IGNITION switch is positioned to AUTO and
THROTTLE is not positioned to FEATHER, then, the auto ignition system provides
current to spark igniter plugs.
IGNITION
lights on as long as ignition unit is supplied.
When Ng is higher than 65 % or THROTTLE is positioned to FEATHER then, the
system is inactive.
PIM - DO NOT USE FOR FLIGHT OPERATIONS