Operation Manual / TPL67-C.. - TPL71-C..
Replacement intervals for turbocharger
components
Page 44
© Copyright 2017 ABB. All rights reserved.
February 2017 HZTL2488_EN Revision D
Replacement intervals for turbocharger com-
ponents
4.3
The recommended replacement intervals for the compressor and turbine
wheels due to stress caused by centrifugal forces and load cycles are cal-
culated under consideration of the operating conditions while applying the
safety concept for rotating components. They can be found on the turbo-
charger rating plate. Incalculable influencing parameters can shorten the
recommended replacement intervals for the rotor,
see
Influencing pa-
rameters
.
The expected replacement intervals for non-rotating components and
bearing parts are extremely dependent upon system-specific operating
conditions,
see Influencing parameters
.
When the specified, periodic inspections are carried out, the individual
components are inspected for wear and tear and replaced if necessary. In
this way, trouble-free operation is ensured.
The following parameters influence the replacement intervals for turbo-
charger components:
Parameters influencing bearing parts
Poor quality of the lubricating oil (lubrication oil filter system, condition
of lubricating oil)
Unusual loads (vibration, start/stop frequency)
Non-permissible state of rotor unbalance
Parameters influencing non-rotating components exposed to exhaust gas
Fuel quality (gas, MDO, HFO)
Load profile (thermal load changes, number of starts/stops)
Temperature level of exhaust gas
Turbine cleaning frequency
Procedure for turbine cleaning
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