Operation Manual / A150-M56/66/57/67 - A155-M..
8 Eliminating malfunctions / 8.2 Malfunctions during operation
© Copyright 2021 ABB. All rights reserved. HZTL4032_EN Rev.Q January 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
Clean (see chapter Periodic mainten-
ance work →58) 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27: 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
Clean (see chapter Periodic mainten-
ance work →58)
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 Periodic mainten-
ance work →58)
Table28: Malfunctions during operation – Engine performance losses
Page 81 / 194
To Next Page
Loading...
Need help?
General
