Rotax 912 Series Maintenance Manual page 93

CAUTION: It is absolutely necessary to inspect the filter mat carefully for
Possible foreign matter:
At vagne findings, flush the lubrication circuit and fit a new oil filter. Afterwards
conduct engine test run and inspect the oil filter once more.
If an increased amount of metal particles is found, like brass- or bronze chips or
sliver from bearings, repair or overhaul the engine in accordance with the
ROTAX
- Inspect all systems for correct function.
- Detailed inspection of affected engine components.
CAUTION: If an increased amount of metal particles is found, replace the oil
Proper judgement needs years of experience in repair of piston engines.
If the filter mat is clogged by foreign matter, the lubricating oil flows unfiltered via
the bypass incorporated in the oil filter, to points of lubrication.
CAUTION: To warrant the function of the oil circuit and the forced flow
Installation of the new oil filter
Slightly lubricate sealing ring of the new oil filter with engine oil and screw on
filter by hand.
CAUTION: After the engine test run, re-tighten filter by hand.
fig.17
00181
Effectivity: 912 Series
AIRCRAFT ENGINES
MAINTENANCE MANUAL
metal chips.
instructions for continued airworthiness.
®
cooler and flush the lubrication circuit. Refer to Chapter
12-00-00, para 5.5.
lubrication, use genuine ROTAX
lent. Only these filters assure correct pressure in the bypass
valve operation.
Steel chips, bronze chips, aluminium chips, sliver
of bearing material, remains of sealing compound.
oil filter only or suitable equiva-
®
12-00-00
page 31
Rev. 1, Jan. 01/2002