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Operation Manual / A170-M.. - A175-M..
8 Troubleshooting / 8.3 Surging of the turbocharger
© Copyright 2022 ABB. All rights reserved.
HZTL4033_EN
Rev.K
January 2022
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
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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Summary of Contents for A175-M62
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