Operation Manual / 4 Product description / A130-H.. - A140-H..
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Charge air pressure too high
Engine performance and engine speed unchanged, suction condition normal
Engine Malfunction in the injection system Repair or contact manufacturer
Injection mistimed Set correctly
Engine performance higher than indicated Check engine performance
Turbocharger Manometer display not correct Replace manometer
Increased speed due to contamination of
nozzle ring
Clean (see chapter Periodic maintenance
work [➙ 45]) or contact an ABB
Turbocharging Service Station
Table 24: Malfunctions during operation – Charge air pressure too high
Reduced compressor performance/efficiency, hence engine performance losses
A severely contaminated or corroded compressor wheel can reduce the
compressor wheel’s fatigue endurance limit and result in the turbocharger
being damaged.
Rectify malfunction in accordance with the following table.
Turbocharger Compressor components severely
contaminated by the ventilation gases that
have been fed in
Clean (see chapter Periodic maintenance
work [➙ 45])
Optimize oil separation
Increased blade vibration, compressor
blade damage due to the ventilation gases
that have been fed in
Correct the feed of ventilation gases
according to instructions of enginebuilder.
Material of the compressor wheel
corroded due to the feeding in of
ventilation gases containing corrosive
components
Correct the feed of ventilation gases
according to instructions of enginebuilder.
Material of the compressor wheel
corroded due to intake air containing
exhaust gases or salt
Prevent exhaust gas leakages in the
engine space
Clean (see chapter Periodic maintenance
work [➙ 45])
Table 25: Malfunctions during operation – Engine performance losses
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