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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
Turbocharger
Filter silencer or diffuser 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, tur-
bine blades, bearings and filter silencer
Have the cause clarified immediately by an ABB Turbocharging ser-
vice 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 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 / TPS48-D/E.. - TPS61-D/E..
6
6.2
Page 80
Elimination
Clean / replace it
Clean it
Clean it
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