ABB HT563025 Operation Manual page 48

4.2.2
Oil filter
4.2.3
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Operation
Servicing work
Servicing work according to the engine manufacturer's instructions
Clean or replace oil filter in supply line to turbocharger when engine is

not running.
Service work in accordance with instructions on rating plate
(In general, after 8000 ... 12000 hours of operation)
Rotor and bearing parts must be inspected and assessed by an ABB
Turbocharging Service Station. The following work can be carried in
preparation.
Remove cartridge group as described in chapter Disassembly and

assembly.
Measure clearances.

Clean turbine and compressor casings and check them for cracks and

erosion / corrosion.
Clean bearing casing and blow air through oil ports / holes.

Clean nozzle ring and check for cracks and erosion.

Operation Manual / TPS44-F.. - TPS61-F..
4
4.2 Page 46