BRP-Rotax
MAINTENANCE MANUAL LINE
PURGING THE OIL SYSTEM
General note
ATTENTION
Purging of the oil system is extremely important for operation and service life of
the engine and therefore the procedure must be followed meticulously.
See Installation Manual for the engine type 912 Series Chapter 79-00-00 section Purging
the lubrication system. It must be carried out in accordance with SI-912–018, “Purging the
lubrication system”, latest issue.
Purging the oil
system
Purging the oil system is necessary:
• with initial installation of new engine
• after reinstallation (e.g. after overhaul)
• after maintenance work during which the lubrication system was opened and
• voided (e.g. removal of the oil tank or oil cooler, replacement of oil lines)
FLUSHING THE OIL CIRCUIT
General note
m
WARNING
Risk of electric shock!
Ignition “OFF” and system grounded! Disconnect negative terminal of battery.
Oil tank
Clean the oil tank.
Oil lines
Dismantle and flush oil lines as per instructions of the aircraft manufacturer.
Temporary oil
lines
Temporary oil lines (only for flushing) must be fitted so that the oil radiator is not con-
nected. The return line is routed into a separate, clean receptacle and not back to the oil
tank.
NOTE
This is done to prevent metal chips and other debris from entering the radiator or
oil tank.
Filling
Fill the oil tank with approx. 3 l (0.8 gal (US)) of engine oil.
Procedure
The following steps have to be carried out after refilling:
Effectivity: 912 Series
Rev. 0
Page 51
January 01 2020
