Operation Manual / TPS44-F.. - TPS61-F..
art-up
Page 35
April 2015 HZTL2412_EN Revision E
3.1
A carefully designed and installed oil supply, which functions in all
possible operational conditions, is an important prerequisite for trouble-
free turbocharger operation.
The turbocharger is normally lubricated with oil from the engine oil circuit.
If a separate lubricating system is used, then emergency lubrication is
also to be provided.
Heed the instructions of the engine builder when selecting the
lubricating oil and oil-change intervals.
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.
© Copyright 2015 ABB. All rights reserved.
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