Exhaust gas turbocharger
Maintenance / Cleaning
A5.05. 06.13.01.06
300
M20
en / 31.05.2010 IB004495 1/2
06
See also:
Spare parts list: B1.05.06.n.7259
Time requirement: 1 Pers./ 0,50 h
Personnel qualification: skilled engine hand
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Operating medium: Heavy fuel and distillate fuel
Maintenance:
Cleaning of the turbocharger every 300 h
Sequence of operations:
1. Cleaning
1.1 Connect the cleaning pipe (2) with the
water supply (detachable hose clip (1) with
stop valve [3]).
1.2 Open drain valve (Fig.2/1)öffnen.
1.3 Reduce engine output to 20 %,
exhaust gas temperature after cylinder
280 - 300 °
°°
°C.
NOTE
Particularly if the engine is running on heavy fuel, deposits will settle down on the tur-
bine blades decreasing the charger efficiency and increasing the bearing loads by
unbalance. These deposits must be removed by injecting fresh water (without additi-
on of detergents or solvents). The washing intervals depend on the fuel quality and
the operating conditions, and they can only be fixed by experience in operation.
It must be absolutely prevented that water enters the exhaust manifold between the
washing operations. For this reason, the hose piece (Fig.1/1) is to be removed after
washing.
DANGER
Attention, danger of burning!
The waste water runs off with a
temperature of > 70 °
°°
°C.
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