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Maintenance
Cleaning the compressor during
operation
Screw in sealing plug (X).
Push the valve activator (Y) against the spring and hold it for 10 ... 15
seconds until the entire volume of water has been injected.
After cleaning, wait at least 5 minutes to allow turbocharger to dry.
The cleaning process can be repeated up to two times.
If the cleaning is still unsuccessful after three cleaning processes and the
engine values are unsatisfactory, it is recommended to have the turbo-
charger checked and cleaned by an ABB Turbocharging Service Station.
Cleaning parameters per turbocharger compressor
Product
TPL76-C
Surging of the compressor stage
Should repeated surging of the compressor stage occur during compres-
sor cleaning, first the cleaning parameters as well as the engine-side sys-
tem must be checked with regard to deviations (e.g. an increased pres-
sure loss in the charge air cooler) and corrected if necessary.
If, despite correct settings, surging of the compressor stage occurs while
cleaning the compressor, as a remedial measure the engine load can be
reduced further while cleaning the compressor. The reduction of the en-
gine load can lead to a reduction in the effectiveness of the compressor
cleaning.
To avoid a decreased engine availability, the compressor stage can be
cleaned at reduced engine load during the drying time after wet clean-
ing of the turbine has been completed. (see section Wet cleaning tur-
bine and nozzle ring during operation). In this case, the water injection
time for cleaning the compressor can be increased from ten to forty
seconds.
5
5.3
Engine load
Water temperature
50 ... 85%
5 ... 50
Operation Manual / TPL76-C
Page 61
Contents of water
[°C]
vessel
[dm
1
]
3
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