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Operation Manual / 4 Product description / A130-M.. - A145-M..
7 Eliminating malfunctions / 7.2 Malfunctions during operation
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 indic-
ated
Turbocharger Manometer display not correct
Increased speed due to contamination of
nozzle ring
Table 24: Malfunctions during operation – Charge air pressure too high
Reduced compressor performance/efficiency, hence engine performance losses
CAUTION
Compressor damage
A severely contaminated or corroded compressor wheel can reduce the com-
pressor wheel's fatigue endurance limit and result in the turbocharger being
damaged.
Rectify malfunction in accordance with the following table.
u
Possible causes
Turbocharger Compressor components severely con-
taminated by the ventilation gases that
have been fed in
Increased blade vibration, compressor
blade damage due to the ventilation
gases that have been fed in
Material of the compressor wheel cor-
roded due to the feeding in of ventilation
gases containing corrosive components
Material of the compressor wheel cor-
roded due to intake air containing ex-
haust gases or salt
Table 25: Malfunctions during operation – Engine performance losses
© Copyright 2017 ABB. All rights reserved.
Remedy
Repair or contact manufacturer
Set correctly
Check engine performance
Replace manometer
Clean (see chapter
work
→40) or contact an ABB Turbochar-
ging Service Station
Remedy
Clean (see chapter
work
→40)
Optimize oil separation
Correct the feed of ventilation gases ac-
cording to instructions of enginebuilder.
Correct the feed of ventilation gases ac-
cording to instructions of enginebuilder.
Prevent exhaust gas leakages in the en-
gine space
Clean (see chapter
work
→40)
HZTL4031_EN
Periodic maintenance
Periodic maintenance
Periodic maintenance
Revision F
August 2017
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