Operation Manual / TPR56-F + TPR61-F
3 Start-up / commissioning / 3.1 Oil supply
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HZTL2490_EN
Revision D
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 [bar]
Admissible, for normal operation
1.0 … 2.5
Admissible, during engine warm-up
1.0 … 5.0
Temporarily admissible ( < 1 h ) ->
alarm
0.8 … 1.0
Not admissible ->
emergency stop
0.0 … 0.8
Admissible, during pre-lubrication and post-lub-
rication (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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