Troubleshooting; Malfunctions When Starting - ABB TPS44 Series Operation Manual

Operation Manual / TPS44-F.. - TPS61-F..
6 Troubleshooting / 6.1 Malfunctions when starting

6 Troubleshooting

6.1 Malfunctions when starting

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Sluggish start-up
Possible causes
Turbochar- Turbocharger contaminated
ger
Damaged bearing
Rubbing rotor
Foreign object in turbocharger
Vibrations
Possible causes
Turbochar- Rotor unbalance
ger
Damaged turbine or com-
pressor
Damaged bearing
Rubbing of rotating parts
Normal behaviour, no malfunction
Turbochar- Minor uniform wear around the periphery of rotor components,
ger caused by slight local rubbing of adjacent components, is per-
missible. The compressor blades and turbine blades are then
shortened 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 Turbochar-
ging Service Station.
HZTL2412_EN
Elimination
Clean it
Contact an ABB Turbocharging
Service Station
Elimination
Contact an ABB Turbocharging
Service Station
Rev.G March 2020