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Operation Manual / A130-M.. - A145-M..
8 Eliminating malfunctions / 8.1 Malfunctions when starting
8
Eliminating malfunctions
8.1
Malfunctions when starting
Delayed start-up
Possible causes
Turbochar-
Turbocharger contaminated
ger
Bearing damaged
Rotor rubbing
Foreign object in the turbocharger
Table 18: Malfunctions when starting – Delayed start-up
Vibrations
Possible causes
Turbochar-
Rotor unbalance
ger
Turbine or compressor damaged
Bearing damaged
Engine
Vibrations from engine
Table 19: Malfunctions when starting – Vibrations
Rubbing of rotating parts
Normal behaviour, not a malfunction
Turbochar-
A slight amount of uniform wear at the circumference of the rotor components
ger
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 a Turbo Sys-
tems service station.
¡
Have a dimension check carried out by a Turbo Systems service station.
Table 20: Malfunctions when starting – Rubbing of rotating parts
© Copyright 2022 ABB. All rights reserved.
Remedy
Clean (see chapter
ance work
→64)
Contact a Turbo Systems service sta-
tion
Remedy
Contact a Turbo Systems service sta-
tion
Contact enginebuilder
HZTL4031_EN
Periodic mainten-
Rev.P
February 2022
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