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6.2
6.2
CAUTION
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Troubleshooting
Surging of the turbocharger
Surging of the turbocharger
Turbocharger surging
Possible causes
Engine
Guard in front of the
turbocharger is contaminated
or damaged
Turbo-
Filter silencer or diffuser
charger
contaminated
Heavy deposits of dirt in the
turbine or nozzle ring
Charge air
Cooler contaminated
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.
Operation Manual / TPS44-F.. - TPS61-F..
6
6.2
Elimination
Clean / replace it
Clean it
Clean it
Page 78
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