Flushing Of The Lubrication Circuit; Equipment (Including Oil Cooler, Oil Hoses, Clamps Etc.) - Rotax 912 Series Maintenance Manual

5.5)

Flushing of the lubrication circuit

- Dismantle oil lines as per instructions of the aircraft builder and flush the lines.
- Clean the oil tank.
- Install provisional oil lines (used for flushing) without connecting the oil cooler
into the circuit and route the return oil line not back to the oil tank but to a separate,
clean and open container.
NOTE:
- Fill the oil tank with approx. 2 litres motor oil.
WARNING: Ignition "OFF''and system grounded. Disconnect negative ter-
- Crank the engine by hand on propeller to transfer the oil from the oil tank to
the engine and back to the open container. This procedure is complete once
the entire oil circuit including sump and oil tank are purged of oil.
Carefully drain oil, capture in a clean open container and examine closely for
chips as described previously. If unacceptable chips or slivers are found,
repeat process until clear.
- Reinstall clean oil lines and new oil cooler according to instructions of the
aircraft builder.
- Install new oil filter and fill the system with oil.
- Reconnect negative terminal of aircraft battery.
5.6)

Equipment (including oil cooler, oil hoses, clamps etc.)

CAUTION: Inspect all the equipment in accordance with the Maintenance
Effectivity: 912 Series
AIRCRAFT ENGINES
MAINTENANCE MANUAL
Otherwise chips could collect in the oil cooler or oil tank during
the flushing procedure.
minal of aircraft battery.
Manual of the aircraft builder.
12-00-00
page 35
Rev. 1, Jan. 01/2002