Operation Manual / 4 Product description / A150-M56/66/57/67 -
A155-M..
6 Periodic maintenance work / 6.2 Cleaning the compressor during
operation
© Copyright 2018 ABB. All rights reserved.
HZTL4032_EN
Revision H
July 2018
6.2
Cleaning the compressor during operation
6.2.1
Introduction
Approval by enginebuilder
The following instructions for wet cleaning only apply to cleaning with pure water and under
the precondition 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 con-
taminated components can no longer be cleaned using this method. In this case, ABB Turbo
Systems 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 turbochar-
ger is completely dismantled and serviced by an ABB Turbocharging Service Station.
Cause and consequences of contamination
The contamination of the compressor stage depends on the degree of purity of the air that
is sucked in. 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
¡
Elevated 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
conditions. 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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