Operation Manual / TPL76-C
Troubleshooting
6
Malfunctions when starting
6.1
Page 77
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Troubleshooting
Malfunctions when starting
6.1
Sluggish start-up
Possible causes
Elimination
Turbo-
charger
Turbocharger contaminated
Clean it
Damaged bearing
Contact an ABB Turbocharging
Service Station
Rubbing rotor
Foreign object in turbocharger
Vibrations
Possible causes
Elimination
Turb-
ocharger
Rotor unbalance
Contact an ABB Turbocharging
Service Station
Damaged turbine or compressor
Damaged bearing
Rubbing of rotating parts
Normal behaviour, no malfunction
Turbo-
charger
Minor uniform wear around the periphery of rotor components,
caused by slight local rubbing of adjacent components, is permis-
sible. The compressor blades and turbine blades are then short-
ened somewhat. Certain tolerances must be observed to avoid a
significant loss of efficiency.
If there is any doubt about the extent of rubbing, then an ABB
Turbocharging Service Station must be contacted.
Have a dimension check carried out by an ABB Turbocharging
Service Station.
6
6.1