Surging Of The Turbocharger - ABB TPS44-F Series Operation Manual

Operation Manual / TPS44-F.. - TPS61-F..
6 Troubleshooting / 6.2 Surging of the turbocharger

6.2 Surging of the turbocharger

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Turbocharger surging
Possible causes
Engine Guard in front of the tur-
bocharger 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
CAUTION
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-
u
vice station and rectified.
Have components inspected for damage and, if necessary, replaced
u
by an ABB Turbocharging service station.
Sporadic surge blows
Surging of the turbocharger can occur during certain operating condi-
tions such as when reducing the engine performance quickly when man-
oeuvring. At the same time, the flow direction in the compressor is mo-
mentarily 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.
HZTL2412_EN
Elimination
Clean / replace it
Clean it
Clean it
Rev.G March 2020