Troubleshooting; Malfunctions When Starting - ABB A140-H56 Operation Manual

Operation Manual / A130-H.. - A140-H..
9

Troubleshooting

9 Troubleshooting
9.1

Malfunctions when starting

Delayed start-up
Possible causes
Turbocharger Turbocharger contaminated
Bearing damaged
Rotor rubbing
Foreign object in the turbocharger
Table 13
Vibrations
Possible causes
Engine Vibrations from engine
Turbocharger Rotor unbalance
Turbine or compressor damaged
Bearing damaged
Table 14
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 com-
pressor or turbine blades to be somewhat shortened. To prevent significant loss of effi-
ciency, 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
© Copyright 2013 ABB. All rights reserved.
Remedy
Clean (Periodic maintenance [➙ 61])
Contact ABB Turbocharging Service Stati-
on
Remedy
Contact enginebuilder
Contact ABB Turbocharging Service Stati-
on
HZTL2414_EN
Page 75 / 115
Revision B
March 2013