Operation Manual / TPS44-H.. - TPS52-H..
9 Eliminating malfunctions / 9.2 Malfunctions during operation
© Copyright 2021 ABB. All rights reserved.
HZTL4037_EN
Rev.F
May 2021
Charge air pressure too high
Engine performance and engine speed unchanged, suction condition normal
Possible causes
Remedy
Turbochar-
ger
Manometer display not correct
Replace manometer
Increased speed due to contamination
of nozzle ring
) or contact an ABB Tur-
bocharging Service Station
Engine
Malfunction in the injection system
Repair or contact manufacturer
Injection mistimed
Set correctly
Engine performance higher than indic-
ated
Check engine performance
Table 23: 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.
u
Rectify malfunction in accordance with the following table.
Possible causes
Remedy
Turbochar-
ger
Compressor components severely con-
taminated by the ventilation gases that
have been fed in
)
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 ac-
cording to instructions of engineb-
uilder.
Material of the compressor wheel cor-
roded due to the feeding in of ventila-
tion gases containing corrosive com-
ponents
Correct the feed of ventilation gases ac-
cording to instructions of engineb-
uilder.
Material of the compressor wheel cor-
roded due to intake air containing ex-
haust gases or salt
Prevent exhaust gas leakages in the en-
gine space
Clean (see chapter
)
Table 24: Malfunctions during operation – Engine performance losses
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