Lubrication System; Oil Level Check - Rotax 914 Series Maintenance Manual

5) Lubrication system

5.1)

Oil level check

See Fig. 31.
▲ WARNING: Always allow engine to cool down to ambient temperature
▲ WARNING: Switch off ignition and remove key! Disconnect negative
Before checking the oil level, make sure that there is not excess residue oil in
the crankcase.
Prior to oil level check, turn the propeller several times by hand in direction of
engine rotation to pump all the oil from the engine to the oil tank.
This process is completed when air flows back to the oil tank. This air flow can
be perceived as a murmur (gurgling) when the cap of the oil tank is removed.
The oil level in the oil tank should be between the two marks (max./min.) on the
oil dipstick, but must never fall below the min. mark. See Service Bulletin SB-
914-026, "Introduction of a new oil dipstick", latest issue.
Replenish oil as required:
■ CAUTION:
During standard engine operation, the oil level should be mid-way between the
max. and min. marks, as at higher oil level (over servicing), oil will escape via
the venting passage see also SI-27-1997,"oil level check", latest issue.
Difference between "max." and "min." - mark = 0.45 l (0.95 liq.pt).
Effectivity: 914 Series
Edition 1 / Rev. 0
BRP-Rotax
MAINTENANCE MANUAL
before start of any work.
Severe burns and scalds may result if this instruction is ignored.
terminal of aircraft battery.
For longer flights replenish oil to max. mark to warrant more
oil reserve.
05489
Fig. 31
max
min
12-00-00
page 33
May. 01/07