ABB A175-M66 Operation Manual - page 84
Operation Manual / 4 Product description / A100-M axial
7
Troubleshooting
Page 54 / 113
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HZTL4033_EN
Revision A
July 2016
Charge air pressure too high
Engine performance and engine speed unchanged, suction condition normal
Possible causes
Remedy
Engine
Malfunction in the injection system
Repair or contact manufacturer
Injection mistimed
Set correctly
Engine performance higher than indicated Check engine performance
Turbocharger Manometer display not correct
Replace manometer
Table 22: Malfunctions during operation – Charge air pressure too high
7.3
Surging of the turbocharger
CAUTION
Prolonged or periodic surging
If the turbocharger surges continuously or periodically, parts of it can be
damaged.
Slowly reduce the engine load.
Have the cause clarified immediately by an ABB Turbocharging service
station and rectified.
Have components inspected for damage and, if necessary, replaced by
an ABB Turbocharging service station.
Surging of the turbocharger
Possible causes
Remedy
Engine
Protective grating in front of the turbo-
charger contaminated or damaged
Clean/replace
Turbocharger
Filter silencer or diffuser contaminated Clean (Periodic
Heavy dirt deposits in the turbine or in
the nozzle ring
Charge air cooler Cooler contaminated
Clean
Charge air duct blocked
Table 23: Surging of the turbocharger