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Operation Manual / 4 Product description / A100-M axial
6
Periodic maintenance
Page 44 / 113
© Copyright 2016 ABB. All rights reserved.
HZTL4033_EN
Revision A
July 2016
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 turbocharger.
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
increased.
No personnel is allowed to be present in the vicinity of the turbocharger
during compressor cleaning.
Compressor cleaning must be activated from the engine control panel.
Wet cleaning operations for compressor with direct water supply
Trigger water injection according to the specifications of the enginebuilder.
Observe specified water pressure upstream of the connection to the turbocharger.
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 pressure
[bar]
Water injection period
[s]
Cleaning interval
[h]
Ø of orifice
[mm]
A170-M
50 … 100
2.5 … 4.5
10
25 … 100
2.9
A175-M
3.4
Table 12: Compressor cleaning parameters