Cleaning The Compressor During Operation - ABB HT564586 Operation Manual

Operation Manual / 4 Product description / A100-L
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.
The contamination of the compressor stage (compressor wheel, wall insert and diffuser) de-
pends on the degree of purity of the taken-in air.
Deposits in the flow channels can be formed when salt, oil mist or dust is 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.
Cleaning interval
The interval between the cleaning cycles depends greatly on the operating conditions. Clean-
ing should normally take place about every 50 hours of operation.
If the specified cleaning intervals are incompatible with operation of the engine, contact ABB
Turbo Systems.
Cleaning method and operating state
The compressor is cleaned during operation using the wet cleaning method. It is carried out at
an engine load of 25 ... 85 %.
This cleaning method is tested and approved by ABB Turbo Systems.
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Revision F June 2016