Operation Manual / TPL67-C.. - TPL71-C..
Cleaning the compressor during
operation
Page 61
© Copyright 2017 ABB. All rights reserved.
February 2017 HZTL2488_EN Revision D
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.
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
Contents of water
vessel
[dm
3
]
TPL67-C + 71-C 50 … 85% 5 … 50 0.4 or 1
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 reduced engine availability, the cleaning of the compressor
stage at reduced engine load can be carried out during the drying time
following the wet cleaning of the turbine (see section Wet cleaning tur-
bine and nozzle ring during operation).
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