Cleaning The Compressor During Operation - ABB HT574400 Operation Manual

Operation Manual / 4 Product description / A100-M axial
6 Periodic maintenance
6.4

Cleaning the compressor during operation

6.4.1 Introduction
Approval by enginebuilder
These instructions for wet cleaning only apply to cleaning with pure water and under the pre-
condition that the enginebuilder approves the process.
General
The contamination of the compressor stage (compressor wheel and diffuser) depends on the
degree of purity of the sucked-in air.
Deposits can form in the flow channels if salt, oil mist or dust are sucked in with the air.
Consequences of contamination:
 Impaired compressor efficiency
 Higher exhaust gas temperatures
 Increased fuel consumption
 Increased rotor unbalance
Periodic cleaning of the compressor during operation prevents or delays any great increase in
the contamination, but never replaces the regular service procedures where the turbocharger
is completely dismantled and the compressor is mechanically cleaned.
6.4.2 Cleaning interval
The time period between the periodical cleaning cycles depends greatly on the operating con-
ditions. Cleaning should normally be done every 25 ... 100 hours of operation.
If the specified cleaning intervals are incompatible with operation of the engine, contact ABB
Turbo Systems.
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Revision A July 2016