Operation Manual / TPS48-D/E.. - TPS61-D/E..
6 Troubleshooting / 6.4 Malfunctions when stopping
© Copyright 2020 . All rights reserved. HZTL2410_EN Rev.F March 2020
Charge air pressure too high
Engine performance and engine speed unchanged, air intake condition
normal
Possible causes Elimination
Engine Malfunctioning injection sys-
tem
Repair it or contact the manu-
facturer
Poorly adjusted injection sys-
tem
Correct it
Engine performance higher
than expected
Check engine performance
Turbochar-
ger
Manometer display wrong Replace the manometer
Fouling of the compressor due to the feeding in of ventilation gases
Reduced compressor performance/efficiency, hence engine perform-
ance losses
Possible causes Remedy
Turbochar-
ger
Heavy fouling of the com-
pressor components
Clean compressor
Optimize oil separation
Increased vibrations, com-
pressor blade damage
Correct the feed of ventilation
gases according to instructions
of enginebuilder.
Reduced fatigue strength of the compressor wheel, compressor blade
failure.
Possible causes Remedy
Turbochar-
ger
Material of compressor wheel
corroded
Check the fuel and its corrosive
components, and change fuel if
necessary.
6.4 Malfunctions when stopping
Noises during run-down
Possible causes Elimination
Turbochar-
ger
Turbocharger contaminated Clean it
Damaged bearing Contact an ABB Turbocharging
Service Station
Rubbing rotor
Foreign object in turbocharger
Page 72 / 111
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