Operation Manual / A150-M56/66/57/67 - A155-M..
6 Operation and service / 6.3 Expected replacement intervals
© Copyright 2022 ABB. All rights reserved.
HZTL4032_EN
Rev.S
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
Table 11: 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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Summary of Contents for HT613076
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