Inspecting Of The Oil Filter Components - Rotax 915 i A SERIES Maintenance Manual

INSPECTING OF THE OIL FILTER COMPONENTS

General note
This inspection is important as it allows conclusions to be drawn regarding the internal
condition of the engine and provides information about the possible cause of any damage.
Procedure To carry out the procedure the following steps are necessary:
Step
Possible foreign Steel chips
matter
Aluminium chips
Remains of sealing compound
Carbon fiber
Increased foreign If an increased amount of metal particles is found, such as brass- or bronze chips or sliver
matter from bearing abrasion, repair or overhaul the engine in accordance with the BRP-Power-
train instructions for continued airworthiness. If the filter mat is clogged by foreign matter,
the lube oil reaches the bearing points unfiltered via the by-pass valve in the oil filter.
Unclear findings In the case of unclear findings:
Step
12–20–00
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December 01 2017
BRP-Rotax
MAINTENANCE MANUAL
The filter components must be inspected carefully.
Procedure
1
Oil filter cut open using special tool taking care not to produce chips.
2 Remove anti-drain membrane.
3 Cut top and bottom edges off the mat with a knife.
4 Remove filter mat, fold up and press remaining oil out.
5 Unroll and inspect it for metal chips, foreign matter, contamination and
abrasion.
6 Pass over matt with a clean magnet and inspect for metal.
7 Inspect filter housing at the contact surfaces for increased wear.
8 Check both springs of oil filter for increased wear.
9 Check anti-drain membrane for damage in the area of filter contact.
Procedure
1 Flush the oil circuit.
2 Fit a new oil filter.
ATTENTION
Bronze chips
Sliver of bearing material
Plastic (thrust washer)
Sliver of copper
Effectivity: 915 i A Series
Edition 0/Rev. 0