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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 turbo-
charger is contaminated or
damaged
Turbocharger
Filter silencer or diffuser con-
taminated
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, tur-
bine blades, bearings and filter silencer
Have the cause clarified immediately by an ABB Turbocharging ser-
τ
vice station and rectified.
Have components inspected for damage and, if necessary, replaced
τ
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 manoeu-
vring. At the same time, the flow direction in the compressor is momentari-
ly 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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