Operation Manual / TPS44-F.. - TPS61-F..
3 Start-up / 3.1 Oil supply
© Copyright 2020 . All rights reserved. HZTL2412_EN Rev.G March 2020
3 Start-up
3.1 Oil supply
A carefully designed and installed oil supply, which functions in all pos-
sible operational conditions, is an important prerequisite for trouble-
free turbocharger operation.
The turbocharger is normally lubricated with oil from the engine oil cir-
cuit. If a separate lubricating system is used, then emergency lubrication
is also to be provided.
u Heed the instructions of the engine builder when selecting the lubric-
ating oil and oil-change intervals.
Oil filtration
CAUTION
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 34µm. This
means that contaminants larger than 0.034mm must be filtered out of
the oil with a separation efficiency >99%.
u Fit an accessory filter if engine oil filter is not efficient enough.
u 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.
u Check that oil filters are clean before commissioning.
NOTICE
Also follow the enginebuilder's instructions regarding filter mesh and
separation efficiency.
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