Exhaust gas turbocharger
Maintenance / Cleaning
A5.05. 06.05.01.02
24
M20
en / 31.05.2010 IB025546 2/3
06
2. Open ballcock (4) for about 20 seconds until the entire water volume has been injected.
The cleaning parameters for turbocharger model KBB-HPR 4000 are as follows:
turbocharger rpm: full load – rpm ( >85% )
water excess pressure: none
water injection time: 20 seconds
water volume : 0.5 liter
NOTE
After the air-side has been cleaned, the engine must be operated at least another 5
minutes under load.
When the compressor impeller was contaminated, the success of a cleaning can be
told by the charge air pressure after the turbocharger.
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