ABB A170-M Series - Malfunctions When Stopping; Table 30: Malfunctions When Stopping - Runout Noises; Table 31: Malfunctions When Stopping - Shortened Runout Time

Operation Manual / A170-M.. - A175-M..
8 Troubleshooting / 8.4 Malfunctions when stopping
© Copyright 2022 ABB. All rights reserved. HZTL4033_EN Rev.K January 2022
Sporadic surge blows
Surging of the turbocharger can occur during certain operating states, such as when redu-
cing the engine load quickly when manoeuvring. When this happens, the flow direction in the
compressor is momentarily reversed. Such sporadic surge blows do not impair the safe op-
eration of the turbocharger.
¡ A surge blow is accompanied by a loud bang and escape of hot air from the filter silencer.
8.4 Malfunctions when stopping
Runout noises
Possible causes Remedy
Turbochar-
ger
Turbocharger contaminated Clean
Bearing damaged Contact an ABB Turbocharging
Service Station
Rotor rubbing
Foreign object in the turbocharger
Table30: Malfunctions when stopping – Runout noises
Shortened runout time
Possible causes Remedy
Turbochar-
ger
Turbocharger contaminated Clean
Bearing damaged Contact an ABB Turbocharging
Service Station
Rotor rubbing
Foreign object in the turbocharger
Table31: Malfunctions when stopping – Shortened runout time
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