Operation Manual / 4 Product description / A100-M axial
6 Periodic maintenance / 6.4 Cleaning the compressor during opera-
tion
© Copyright 2019 ABB. All rights reserved. HZTL4033_EN Rev.D December 2019
6.4.4 Wet cleaning with direct water supply
Prerequisites
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 tur-
bocharger.
WARNING
Increased stress on material
During cleaning of the compressor at an engine load of 85 to 100 %, the
stress on the material of the compressor-end turbocharger parts can be in-
creased.
u No personnel is allowed to be present in the vicinity of the turbocharger
during compressor cleaning.
u Compressor cleaning must be activated from the engine control panel.
Wet cleaning operations for compressor with direct water supply
u Trigger water injection according to the specifications of the enginebuilder.
u Observe specified water pressure upstream of the connection to the turbocharger.
u Operate engine for at least five additional minutes after cleaning.
Not more than three cleaning cycles should be conducted consecutively.
Cleaning parameters for each compressor
Product Engine load
[%]
Water pres-
sure
[bar]
Water injection
period
[s]
Cleaning interval
[h]
Ø of ori-
fice
[mm]
A170-M 50 … 100 2.5…4.5 10 25…100 2.9
A175-M 3.4
Table15: Compressor cleaning parameters
Page 41 / 114
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