ABB TPL73-A30 - Page 32

Operation Manual / TPL69-A10 / -A30 ... TPL77-A10 / -A30
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3
Oil supply
3.1
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© Copyright 2016 ABB. All rights reserved.
December 2016 HZTL2481_EN Revision B
Oil pressure
The oil pressure in front of the turbocharger must be maintained precisely
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 in front of the turbo-
charger p
oil,in
[bar]
Permissible, for normal operation
1.3 … 2.5
Permissible, during engine warm-up 1.3 … 5.0
Temporarily admissible ( < 1 h ) -> 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
NOTICE
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.