ABB A140-H55 - 7 Eliminating Malfunctions; Malfunctions When Starting; Table 17 Malfunctions When Starting; Table 18 Malfunctions When Starting - Rubbing of Rotating Parts

Operation Manual / 4 Product description / A130-H.. - A140-H..
7
Eliminating malfunctions
Page 65 /
115
© Copyright 2015 ABB. All rights reserved.
HZTL4030_EN
Revision C
September 2015
7 Eliminating malfunctions
7.1 Malfunctions when starting
Delayed start-up
Possible causes
Remedy
Turbocharger Turbocharger contaminated Clean (see chapter Periodic maintenance
work [➙ 45])
Bearing damaged Contact ABB Turbocharging Service
Station
Rotor rubbing
Foreign object in the turbocharger
Table 16: 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 17: 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
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 18: Malfunctions when starting – Rubbing of rotating parts