Operation Manual / 4 Product description / A200-L7 Troubleshooting / 7.4 Malfunctions when stopping© Copyright 2018 ABB. All rights reserved. HZTL4036_EN Revision M August 2018Sporadic surge blowsSurging 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 thecompressor 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.7.4 Malfunctions when stoppingRunout noisesPossible causes RemedyTurbocharger Turbocharger contaminated CleanBearing damaged Contact an ABB TurbochargingService StationRotor rubbingForeign object in the turbochargerTable 24: Malfunctions when stopping – Runout noisesShortened runout timePossible causes RemedyTurbocharger Turbocharger contaminated CleanBearing damaged Contact an ABB TurbochargingService StationRotor rubbingForeign object in the turbochargerTable 25: Malfunctions when stopping – Shortened runout timePage 48 / 108
