ABB A155-M57 Operation Manual page 75

Operation Manual / 4 Product description / A150-M.. - A155-M..
6 Periodic maintenance work
6.2.3 Cleaning method
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 50 ... 85 %.
This cleaning method has been tested and approved by ABB Turbo Systems.
V-engines
On V-engines with several turbochargers per engine, parallel cleaning of both turbochargers is
recommended. This cleaning process is faster and reduces the risk of surging of the turbo-
charger.
Sequential charging
With sequential charging, it must be made sure especially after operating periods in the lower
range of performance that both turbocharger compressors are cleaned.
6.2.4 Function and safety of wet cleaning
Volume of water
Uncontrolled volumes of water can damage the turbocharger and the en-
gine.
CAUTION
Never connect injection tubes directly to a water pipe or a larger metering
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container other than that specified by ABB Turbo Systems.
Danger due to pressure vessels
Personal injury can occur if the locally applicable legal regulations on period-
ic inspections of the pressure vessels are not complied with.
WARNING
The locally applicable legal regulations regarding periodic checks of the

pressure vessels must be observed.
Do not use pressure vessels that are defective.

Corrosion and deposits when cleaning
Salt water and cooling water treatment substances damage and adversely
affect turbocharger parts.
CAUTION
Never use salt water, but only pure water for cleaning.
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Revision F January 2017