Operation Manual / TPL69-A10 / -A30 ... TPL77-A10 / -A30
3 Start-up / 3.1 Oil supply
© Copyright 2018 . All rights reserved. HZTL2481_EN Revision C May 2018
Oil pressure
The oil pressure in front of the turbocharger must be maintained pre-
cisely to ensure trouble-free operation.
The permissible oil pressure ranges at measuring point M (blind connec-
tion) on the turbocharger are listed below.
Status for operation Oil pressure at measuring
point M
p
oil,in
[bar]
Permissible, for normal operation 1.3…2.5
Permissible, during engine warm-up 1.3…5.0
Temporarily admissible ( <1h ) -> alarm 1.1…1.3
Not permissible -> emergency stop 0.0…1.1
Permissible, during pre- and post-lubrication
(engine stopped)
0.2…2.5
Oil orifice
A metering orifice is installed in the oil inlet of the turbocharger to en-
sure these oil pressures. The orifice is installed by the enginebuilder and
it is fixed in place with a locking ring.
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