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Operation Manual / 4 Product description / TPS44-H.. - TPS52-H..
8 Eliminating malfunctions / 8.2 Malfunctions during operation
Charge air pressure too high
Engine performance and engine speed unchanged, suction condition normal
Possible causes
Turbocharger Manometer display not correct
Increased speed due to contamination of
nozzle ring
Engine
Malfunction in the injection system
Injection mistimed
Engine performance higher than indic-
ated
Table 21: Malfunctions during operation – Charge air pressure too high
Reduced compressor performance/efficiency and therefore 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 22: Malfunctions during operation – Engine performance losses
© Copyright 2017 ABB. All rights reserved.
Remedy
Replace manometer
Clean (see chapter
work
→30) or contact an ABB Turbochar-
ging Service Station
Repair or contact manufacturer
Set correctly
Check engine performance
Remedy
Clean (see chapter
work
→30)
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
→30)
HZTL4037_EN
Periodic maintenance
Periodic maintenance
Periodic maintenance
Revision E
July 2017
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