ABB HT606839 - Surging of the Turbocharger; Table 28: Malfunctions During Operation - Charge Air Pressure too High; Table 29: Surging of the Turbocharger

Operation Manual / A170-M.. - A175-M..
8 Troubleshooting / 8.3 Surging of the turbocharger
© Copyright 2021 ABB. All rights reserved. HZTL4033_EN Rev.H July 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
Engine Malfunction in the injection system Repair or contact manufacturer
Injection mistimed Set correctly
Engine performance higher than indic-
ated
Check engine performance
Table28: Malfunctions during operation – Charge air pressure too high
8.3 Surging of the turbocharger
CAUTION
Continuous or periodic surging
If the turbocharger surges continuously or periodically, parts of the tur-
bocharger may be damaged.
u Gradually reduce the engine load.
u Have the cause clarified and remedied immediately by an ABB Turbochar-
ging Service Station.
u Have parts assessed for damage and, if necessary, replaced by an ABB
Turbocharging Service Station.
Surging of the turbocharger
Possible causes Remedy
Turbocharger Filter silencer or diffuser contamin-
ated
Clean (Periodic maintenance →53)
Heavy dirt deposits in the turbine or
in the nozzle ring
Engine Protective grating in front of the tur-
bocharger contaminated or damaged
Clean/replace
Charge air
cooler
Cooler contaminated Clean
Charge air duct blocked
Table29: Surging of the turbocharger
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