ABB HT846784 Operation Manual page 31

Operation Manual / TPL76-C32/-C33/-C34/-C35
3 Commissioning / 3.1 Oil supply
© Copyright 2021 . All rights reserved.
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
Permissible, for normal operation
Permissible, during engine warm-up
Temporarily admissible ( < 1 h ) -> alarm
Not permissible -> emergency stop
Permissible, during pre- and post-lubrication
(engine stopped)
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.
HZTL2485_EN
Oil pressure at measuring
point M
p [bar]
oil,in
1.3 ... 2.5
1.3 ... 5.0
1.1 ... 1.3
0.0 ... 1.1
0.2 ... 2.5
Rev.G July 2021