ABB TPS48-H33 - Troubleshooting and Dismantling

Operation Manual / 4 Product description / TPS44-H.. - TPS52-H..
8
Eliminating malfunctions
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HZTL4037_EN
Revision A
August 2016
8 Eliminating malfunctions
8.1 Malfunctions when starting
Delayed start-up
Possible causes
Remedy
Turbocharger Turbocharger contaminated Clean (see chapter Periodic maintenance
work [➙ 39])
Bearing damaged Contact ABB Turbocharging Service Station
Rotor rubbing
Foreign object in the turbocharger
Table 13: Malfunctions when starting – Delayed start-up
Vibrations
Possible causes
Remedy
Engine Vibrations from engine Contact enginebuilder
Turbocharger Rotor unbalance Contact ABB Turbocharging Service Station
Turbine or compressor damaged
Bearing damaged
Table 14: Malfunctions when starting – Vibrations
Rotating parts rubbing
Normal behaviour, not a malfunction
Turbocharger A minimal and uniform wear on the circumference of the rotor components is permit-
ted. This wear can be caused by slight local rubbing against adjacent components.
This causes the compressor or turbine blades to be somewhat shortened. To prevent
significant loss of efficiency, 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 15: Malfunctions when starting - Rotating parts rubbing