Operation Manual / 4 Product description / A100-L
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7 Troubleshooting
7.1 Malfunctions when starting
Delayed start-up
Turbocharger Turbocharger contaminated Clean (Periodic maintenance [➙ 37])
Bearing damaged Contact ABB Turbocharging Service
Station
Rotor rubbing
Foreign object in the turbocharger
Table 15: Malfunctions when starting – Delayed start-up
Engine Vibrations from engine Contact enginebuilder
Turbocharger Rotor unbalance Contact ABB Turbocharging Service
Station
Turbine or compressor damaged
Bearing damaged
Table 16: Malfunctions when starting – Vibrations
Rubbing of rotating parts
Normal behaviour, not a malfunction
Turbocharger A minimal and uniform wear at the circumference of the rotor components caused by
slight local rubbing against adjacent components is permitted. This causes the com-
pressor or turbine blades to be somewhat shortened. To prevent significant loss of effi-
ciency, specific tolerances must be fulfilled.
If there is any doubt about the extent of the rubbing, contact an ABB Turbocharging
Service Station.
Have a dimension check carried out by an ABB Turbocharging Service Station.
Table 17: Malfunctions when starting – Rubbing of rotating parts
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