ABB HT596419 Operation Manual page 67

Operation Manual / TPL65VA32 / VA33
6 Troubleshooting / 6.2 Surging of the turbocharger
© Copyright 2020 . All rights reserved.
Possible causes
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.
HZTL2464_EN
Elimination
Clean it
Rev.E March 2020