ABB TPL69-A33 Series Operation Manual page 62

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Operation Manual / TPL65-A32 / -A33 / -A36 + TPL69-A32 / -A33
Maintenance
Cleaning turbine blades and nozzle ring
in operation
Layout of cleaning pipes
Wet cleaning procedure for turbine during operation
Meet prerequisites and operating state requirements without fail before

cleaning!
Make sure water supply (01) is connected, turned on and guaranteed.

Open drain pipe (08, 09), if provided.

Switch over 3-way valve (04) from scavenging air mode to water sup-

ply.
Set the required volume of water on the flowmeter as shown in the ta-

ble (see table Cleaning parametersTPL-C: 3 nozzles - Cleaning pa-
rameters for wet cleaning of turbine and nozzle ring).
After injecting required volume of water, shut off water supply again by

switching over 3-way valve (04) to scavenging air mode.
The injection process has been completed.

Close drain hole (if provided) above drain pipe (08, 09).

After cleaning, wait with engine running for at least 10 minutes without

changing load to allow turbocharger to dry.
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