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Operation Manual / 4 Product description / A100-M axial
7 Troubleshooting / 7.4 Malfunctions when stopping
© Copyright 2019 ABB. All rights reserved.
HZTL4033_EN
Rev.D
December 2019
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.
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A surge blow is accompanied by a loud bang and escape of hot air from the filter silencer.
7.4
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 28: 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 29: Malfunctions when stopping – Shortened runout time
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