Start-Up; Oil Supply - ABB HT566891 Operation Manual

3
3.1
3.1
CAUTION
NOTICE
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Start-up

Oil supply

Start-up
Oil supply
A carefully designed and installed oil supply, which functions in all possi-
ble operational conditions, is an important prerequisite for trouble-free tur-
bocharger operation.
The turbocharger is normally lubricated with oil from the engine oil circuit.
If a separate lubricating system is used, then emergency lubrication is al-
so to be provided.
Heed the instructions of the engine builder when selecting the lubricat-

ing oil and oil-change intervals.
Oil filtration
Depending on the turbine specifications and bearings used, varying
amounts of contaminants have to be filtered out of the lubricating oil to
avoid dangerous wear of the bearing parts.
The standard oil filter specification for the turbocharger is 34 µm. This
means that contaminants larger than 0.034 mm must be filtered out of the
oil with a separation efficiency > 99%.
Fit an accessory filter if engine oil filter is not efficient enough.

If the engine is started cold and the flow resistance rises to above 0.5

bar due to deposits of dirt in the accessory filter, a bypass must open
which ensures that oil flows to the turbocharger by circumventing the
filter.
Check that oil filters are clean before commissioning.

Also follow the enginebuilder's instructions regarding filter mesh and
separation efficiency.
Operation Manual / TPS44-F.. - TPS61-F..
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3.1 Page 35