Exhaust gas turbocharger
Maintenance / Cleaning
A5.05. 06.05.02.04
150
M20
en / 10.08.2010 IB026801 1/4
06
See also: A5.05.06.05.00.nn, A3.06.06.nn
Spare parts list: B1.05.06.nn7259 nn
Time requirement: 1 Pers./ 0,40 h
Personnel qualification: skilled engine hand
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Operating medium: Heavy fuel
Maintenance:
Turbine cleaning M 20 every 150 h
Prerequisite: - Wet cleaning
wet cleaning of turbine and nozzle ring require lower exhaust gas temperatures or lower engine
load
*
.
* Definition of low engine load:
Low engine load means that the engine either
- runs at zero pitch and rated rpm
- runs on the grid at rated rpm and max. 10 % load
- runs disengaged at rated rpm
- for fixed impellers at max. 15% load.
NOTE
The cleaning effect during turbine washing is caused by the mechanical impact of the
water droplets as well as by the water solubility of the deposits.
CAUTION
Please note that these cleaning instructions apply only to the engines listed on cover
A0 and thus, only the "low load washing" cleaning type:
"WASHING OF TURBINE AND NOZZLE RING AT LOW EXHAUST GAS TEMPERA-
TURE OR AT LOW ENGINE LOAD *"
may be used.
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