Operation Manual / A130-M.. - A145-M..
6 Operation and service / 6.3 Expected replacement intervals
© Copyright 2022 ABB. All rights reserved. HZTL4031_EN Rev.P February 2022
6.3 Expected replacement intervals
Rotating components
The recommended replacement intervals of the compressor and turbine wheels are spe-
cified with the aid of the safety concept for rotating parts (SIKO) and dependent on the op-
erating conditions. These intervals are shown on the rating plate of the turbocharger.
Non-rotating components
Depending on the system-specific operating conditions, a differentiation must be made
between the intervals to be expected for:
¡ replacing the bearing parts and
¡ replacing the non-rotating components exposed to hot gas.
A decisive role is played by various influencing parameters which, in extreme cases, can sig-
nificantly reduce the replacement interval of these parts.
During the prescribed periodic service work, the individual parts are examined for wear and
replaced if necessary.
Expected replacement intervals [h]
GAS / MDO HFO
Turbine casing 25000…50000 25000…50000
Nozzle ring 25000…50000 10000 … 25000
Gas outlet flange 25000…50000 25000
Heat shield 25000…50000 25000
Rotor components See information on rating plate
Bearing parts 12000…32000 12000…24000
Other casings 50000 50000
Table12: Expected replacement intervals
GAS = Natural Gas
MDO = Marine Diesel Oil
HFO = Heavy Fuel Oil
The specified values are guideline values and not guaranteed values, see Influencing para-
meters.
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