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Operation Manual / A170-M.. - A175-M..
7 Periodic maintenance / 7.5 Cleaning turbine and nozzle ring
© Copyright 2021 ABB. All rights reserved.
HZTL4033_EN
Rev.H
July 2021
7.5.4
Wet cleaning of turbine and nozzle ring
Prerequisites:
Procedure without automated cleaning
The following operating state and the following prerequisites have been tested and ap-
proved by ABB Turbocharging for cleaning operations:
u
Set the engine load between 20 … 50 % so that the turbine inlet temperature is between
380 … 430 °C.
Fig. 30: Turbine and nozzle ring cleaning cycle
u
Once the turbine inlet temperature is stable and has dropped below 430 °C, wait at least
another 10 minutes to allow the turbine-end turbocharger parts to cool down.
u
Start the cleaning cycle according to the following description Wet cleaning procedure.
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