Expected Replacement Intervals - ABB HT570679 Operation Manual

Operation Manual / 4 Product description / A150-M.. - A155-M..
5 Operation and service
5.3

Expected replacement intervals

Rotating components
The recommended replacement intervals for compressor and turbine wheels are specified
based on the safety concept for rotating parts (SIKO) and dependent on the operating condi-
tions. 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 be-
tween 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 dras-
tically shorten 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]
Turbine casing
Nozzle ring
Gas outlet flange
Heat shield
Rotor components
Bearing parts
Other casings
Table 9: Expected replacement intervals
MDO = Marine Diesel Oil
HFO = Heavy Fuel Oil
The specified values are guideline values and not guaranteed values, see Influencing parameters.
© Copyright 2017 ABB. All rights reserved.
MDO
25000 ... 50000
25000 ... 50000
25000 ... 50000
25000 ... 50000
See rating plate data
12000 ... 24000
50000
HZTL4032_EN
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HFO
25000 ... 50000
10000 ... 25000
25000
25000
12000 ... 24000
50000
Revision F January 2017