Fig. 30: Turbine And Nozzle Ring Cleaning Cycle - ABB HT605590 Operation Manual

Operation Manual / A170-M.. - A175-M..
7 Periodic maintenance / 7.5 Cleaning turbine and nozzle ring
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:
Set the engine load between 20 ... 50 % so that the turbine inlet temperature is between
u
380 ... 430 °C.
Fig. 30: Turbine and nozzle ring cleaning cycle
Once the turbine inlet temperature is stable and has dropped below 430 °C, wait at least
u
another 10 minutes to allow the turbine-end turbocharger parts to cool down.
Start the cleaning cycle according to the following description Wet cleaning procedure.
u
© Copyright 2021 ABB. All rights reserved. HZTL4033_EN Rev.H July 2021