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Operation Manual / TPL85-B14/-B15/-B16
5 Maintenance / 5.5 Cleaning turbine blades and nozzle ring in opera-
tion
Operating the cleaning
medium vessel
5.5 Cleaning turbine blades and nozzle ring in
Wet-cleaning interval
© Copyright 2018 . All rights reserved.
Fulfil operating state prerequisites for cleaning compressors with
u
XC4 without fail before cleaning.
Open cover (05) of cleaning medium vessel (01).
u
Fill with clean water.
u
Screw down cover (05).
u
Open valve (06) for about 3 minutes.
u
Close valve (06) and check that all water has been sucked out.
u
After cleaning, wait at least 5 minutes with engine running to allow
u
turbocharger to dry.
If the cleaning operation is not satisfactory, it may be repeated up to
two times.
If the cleaning result is still not satisfactory after three attempts and the
engine values are also unsatisfactory, we recommend that you have the
turbocharger inspected and cleaned by an official ABB Turbocharging
Service Station.
Cleaning parameters per turbocharger compressor
Product
TPL85-B
operation
Combustion of heavy fuel oil in diesel engines causes soiling of the tur-
bine blades and nozzle rings of the turbochargers.
Soiling increases with time, so that regular and properly performed
cleaning is important to remove the accumulated deposits.
The exhaust gas temperature downstream of the cylinders can rise and
the charging pressure at the air receiver can fall if turbine components
become soiled.
A soiled turbine also results in rotor unbalance. Severe soiling can lead to
impermissibly high rotor imbalance.
Experience in operation has shown that despite periodic cleaning during
operation, it is impossible to dispense with overhauls during which the
turbine and nozzle ring are mechanically cleaned. However, if cleaning is
performed correctly and the cleaning system is properly dimensioned,
the intervals between overhauls can be extended.
The interval between periodic cleaning is very dependent on the operat-
ing conditions. As a rule, cleaning should be carried out every 50 to 500
operating hours.
HZTL2491_EN
Contents of water vessel
3
[dm
]
3.0
Revision C
August 2018
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