ABB HT573930 Operation Manual page 59

Principle of wet cleaning
CAUTION
CAUTION
CAUTION
V-engines
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Maintenance
Cleaning the compressor during
operation
Cleaning method
Cleaning of the compressor during operation is carried out using the
cleaning method described in the following:
 Wet cleaning
This cleaning method has been tested and approved by ABB Turbo Sys-
tems.
To clean the compressor stage during operation, water is injected in front
of the compressor wheel.
The water does not act as a solvent, but the contamination deposit is re-
moved by the mechanical impact of the droplets. This is a very suitable
process, provided that the degree of contamination is not too high.
Corrosion and deposits when cleaning
Damage and impairment of turbocharger parts due to salt water and
cooling water additives
Don't use salt water for cleaning, but only clean fresh water.

Uncontrolled volumes of water
Uncontrolled volumes of water can damage the turbocharger and the
engine.
Never connect the water line without the orifice specified for the tur-

bocharger.
Formation of ice at low temperatures
Damage to turbocharger due to the formation of ice during wet cleaning
if the intake air temperatures are too low.
Never carry out wet cleaning if intake air temperatures are under

5 °C.
In the case of V-engines with several turbochargers on each engine, we
recommend parallel cleaning of the compressors. This cleaning process is
faster and the risk of turbocharger surging is reduced.
Operation Manual / TPL67-C.. - TPL71-C..
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5.3 Page 57