Troubleshooting; Malfunctions When Starting; Table 14: Malfunctions When Starting - Delayed Start-Up; Table 15: Malfunctions When Starting - Vibrations - ABB HT575925 Operation Manual

Operation Manual / 4 Product description / A100-M axial
7 Troubleshooting / 7.1 Malfunctions when starting
7

Troubleshooting

7.1

Malfunctions when starting

Delayed start-up
Possible causes
Turbocharger Turbocharger contaminated
Bearing damaged
Rotor rubbing
Foreign object in the turbocharger
Table 14: Malfunctions when starting – Delayed start-up
Vibrations
Possible causes
Turbocharger Rotor unbalance
Turbine or compressor damaged
Bearing damaged
Engine Vibrations from engine
Table 15: 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 Tur-
bocharging Service Station.
¡
Have a dimension check carried out by an ABB Turbocharging Service Sta-
tion.
Table 16: Malfunctions when starting – Rubbing of rotating parts
© Copyright 2017 ABB. All rights reserved.
Remedy
Clean (Periodic maintenance
Contact ABB Turbocharging Service Sta-
tion
Remedy
Contact ABB Turbocharging Service Sta-
tion
Contact enginebuilder
HZTL4033_DE
→33)
Revision B December 2017