6.5 Lubricating System
The lubricating system of the engine consists of an internal oil pump, which pumps the engine oil
through the oil filter, the coolant-oil heat exchanger and the lubrication ports of the engine.
In front of the oil filter the oil pressure is measured. The oil temperature is measured in oil sump next
to the oil filler neck. As the coolant temperature is regulated the coolant-oil heat exchanger provides
regulated oil temperatures.
The breather air out of the crankcase is guided through an oil separator. After the oil separator the
crankcase air is released through the breather line into the environment.
In front of the engine a gearbox is provided. This gearbox has its own lubrication circuit. An internal oil
pump pumps the gearbox oil to the lubrication points of the gearbox and to the governor flange. Thus
the propeller pitch adjustment is provided by the gearbox oil.
For approved engine and gearbox oil refer to chapter 2.5.6.1