Cleaning The Compressor During Operation - ABB HT562624 Operation Manual

Operation Manual / 4 Product description / A150-M.. - A155-M..
6 Periodic maintenance work
6.2

Cleaning the compressor during operation

6.2.1 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.
Options and limits
Periodic cleaning during operation delays any major increase in contamination. The cleaning
method is suitable as long as the contamination has not progressed far. Very heavily contami-
nated components can no longer be cleaned using this method. In this case, ABB Turbo Sys-
tems recommends having the contaminated components cleaned mechanically by an ABB
Turbocharging Service Station.
Periodic cleaning during operation does not replace the service work where the turbocharger
is completely dismantled and serviced by an ABB Turbocharging Service Station.
Causes and results of contamination
Contamination of the compressor stage depends on the degree of purity of the sucked-in air.
Deposits can form in the flow channels if salt, oil mist, exhaust gas or dust are sucked in with
the air.
Consequences of contamination:
 Impaired compressor efficiency
 Increased exhaust gas temperatures
 Increased fuel consumption
 Increased rotor unbalance
6.2.2 Cleaning interval
The time period between the periodical cleaning cycles depends greatly on the operating con-
ditions. Cleaning should normally be done every 24 ... 72 hours of operation.
If the specified cleaning intervals are incompatible with operation of the engine, contact ABB
Turbo Systems.
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Revision F January 2017