Operation Manual / TPS44-F.. - TPS61-F..
Troubleshooting 6
Surging of the turbocharger 6.2 Page 78
© Copyright 2016 ABB. All rights reserved.
August 2017HZTL2412_ENRevision F
Surging of the turbocharger
6.2
Turbocharger surging
Possible causes Elimination
Engine Guard in front of the turbo-
charger is contaminated or
damaged
Clean / replace it
Turbocharger Filter silencer or diffuser con-
taminated
Clean it
Heavy deposits of dirt in the
turbine or nozzle ring
Charge air
cooler
Cooler contaminated Clean it
Charge air duct blocked
CAUTION
Prolonged or periodic surging
Possible damage to components, such as the compressor wheel, tur-
bine blades, bearings and filter silencer
τ Have the cause clarified immediately by an ABB Turbocharging ser-
vice station and rectified.
τ 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.
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