Cleaning The Compressor During Operation - ABB A135-M65 Operation Manual

Operation Manual / A130-M.. - A145-M..
8 Periodic maintenance Page 60 / 113
8.2

Cleaning the compressor during operation

The instructions for wet cleaning only apply to cleaning with pure water and under the precon-
dition that the enginebuilder approves the process.
The contamination of the compressor stage (compressor wheel and diffuser) depends on the
degree of purity of the sucked-in air.
Deposits of dirt can form in the flow channels if the following substances are sucked in with
the air:
 Oil mist or salt spray
 Solid combustion residues
 Dust
The contamination of the compressor stage can have a negative influence on the compressor
efficiency and on the charging pressure.
On the engine side, this causes higher exhaust gas temperatures and increased fuel con-
sumption. The contamination of the compressor can also increase the unbalance of the rotor.
Periodic cleaning of the compressor during operation never replaces the service work where
the turbocharger is completely dismantled and the compressor is mechanically cleaned.
Cleaning interval
The time period between the periodical cleaning cycles depends greatly on the operating con-
ditions. Cleaning should normally be done every 24 to 72 hours of operation.
If the specified cleaning intervals are incompatible with operation of the engine, please contact
ABB Turbo Systems.
Cleaning method
The compressor is cleaned during operation using the wet cleaning method.
This cleaning method has been tested and approved by ABB Turbo Systems.
© Copyright 2013 ABB. All rights reserved. HZTL2413_EN Revision B
March 2013