Operation Manual / A100-L
7 Periodic maintenance / 7.4 Cleaning the compressor during operation
© Copyright 2021 ABB. All rights reserved. HZTL4034_EN Rev.T December 2021
Principle of wet cleaning
CAUTION
Risk of ice formation
When cleaning the compressor with water and air inlet temperatures < 0°C,
there is a risk of ice formation at the turbocharger.
u Compressor cleaning with water is not recommended for air inlet temper-
atures < 0°C.
CAUTION
Corrosion and deposits when cleaning
Salt water and cooling water treatment substances damage and adversely
affect turbocharger parts.
u Never use salt water, but only pure water for cleaning.
To clean the compressor stage during operation, water is injected upstream of the com-
pressor wheel.
The water does not act as a solvent. The coating is removed by the mechanical action of the
impacting droplets. The procedure is perfectly suitable, provided that the contamination
has not progressed too far.
Cleaning several turbochargers
If several turbochargers are installed on an engine, it is recommended to clean one com-
pressor after the other.
CAUTION
Volume of water for cleaning the compressor
Uncontrolled volumes of water can damage the turbocharger and the en-
gine.
u Do not guide water pipes to the filler openings.
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