ABB A140-H56 Operation Manual page 80

Operation Manual / A130-H.. - A140-H..
9 Troubleshooting
Charge air pressure too high
Engine performance and engine speed unchanged, suction condition normal
Possible causes
Engine Malfunction in the injection system
Injection mistimed
Engine performance higher than indicated Check engine performance
Turbocharger Manometer display not correct
Table 21
Reduced compressor performance/efficiency, hence engine performance losses
Contamination of the compressor
Possible causes
Turbocharger Heavy contamination of the compressor
components due to the feeding in of venti-
lation gases
Increased blade vibration, compressor
blade damage due to the feeding in of
ventilation gases
Table 22
Reduced fatigue strength of the compressor wheel, compressor blade breakage
Possible causes
Turbocharger Material of the compressor wheel corro-
ded due to the feeding in of ventilation
gases containing corrosive components
Material of the compressor wheel corro-
ded due to intake air containing exhaust
gases or salt
Table 23
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Remedy
Repair or contact manufacturer
Set correctly
Replace manometer
Remedy
Clean (see chapter Periodic maintenance
[➙ 61])
Optimize oil separation
Correct the feed of ventilation gases ac-
cording to instructions of enginebuilder
Remedy
Correct the feed of ventilation gases ac-
cording to instructions of enginebuilder
Prevent exhaust gas leakages in the engi-
ne space
Clean (see chapter Periodic maintenance
[➙ 61])
HZTL2414_EN
Page 78 / 115
Revision B
March 2013