Surging Of The Turbocharger - ABB TPL65-A32 Operation Manual

6.2
6.2
CAUTION
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Operation Manual / TPL65-A32 / -A33 / -A36 + TPL69-A32 / -A33
Troubleshooting

Surging of the turbocharger

Surging of the turbocharger
Surging of the turbocharger
Possible causes
Engine Protective grating in front of the
turbocharger fouled or
damaged
Turbocharger Filter silencer or diffuser fouled
Heavy dirt deposits in the
turbine or in the nozzle ring
Charge-air Cooler fouled
cooler
Charge-air duct blocked
Prolonged or periodic surging
Possible damage to components, such as the compressor wheel,
turbine blades, bearings and filter silencer
Have the cause clarified immediately by an ABB Turbocharging

service station and rectified.
Have components inspected for damage and, if necessary, replaced

by an ABB Turbocharging service station.
Sporadic surge blows
Surging of the turbocharger can occur during certain operating conditions
such as when reducing the engine performance quickly when
manoeuvring. At the same time, the flow direction in the compressor is
momentarily reversed. Such sporadic surge blows do not impair the safe
operation of the turbocharger.
 A surge blow is accompanied by a loud bang and escape of hot air
from the filter silencer.
6
6.2
Remedy
Clean/Replace
Clean
Clean
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