Malfunctions When Stopping; Table 25: Malfunctions When Stopping - Runout Noises; Table 26: Malfunctions When Stopping - Shortened Runout Time - ABB HT588465 Original Operation Manual

Operation Manual / 4 Product description / A100-M axial
7 Troubleshooting / 7.4 Malfunctions when stopping
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
Turbocharger Turbocharger contaminated
Bearing damaged
Rotor rubbing
Foreign object in the turbocharger
Table 25: Malfunctions when stopping – Runout noises
Shortened runout time
Possible causes
Turbocharger Turbocharger contaminated
Bearing damaged
Rotor rubbing
Foreign object in the turbocharger
Table 26: Malfunctions when stopping – Shortened runout time
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Remedy
Clean
Contact an ABB Turbocharging
Service Station
Remedy
Clean
Contact an ABB Turbocharging
Service Station
HZTL4033_DE Revision C February 2019