ABB Power2 850-M16 - Page 71

Operation Manual / Power2 800-M / 4 Product description
7
Troubleshooting
Page 39 /
59
© Copyright 2016 ABB. All rights reserved.
HZTL4061_EN
Revision A
September 2016
7 Troubleshooting
7.1 Malfunctions when starting
Delayed start-up
Possible causes
Remedy
Low-pressure or
high-pressure
stage
Pressure stage contaminated Clean
Bearing damaged Contact ABB Turbocharging Service Sta-
tion
Rotor rubbing
Foreign object in pressure stage
Table 16: Malfunctions when starting – Delayed start-up
Vibrations
Possible causes
Remedy
Engine Vibrations from engine Contact enginebuilder
Low-pressure or
high-pressure
stage
Rotor unbalance Contact ABB Turbocharging Service Sta-
tion
Turbine or compressor damaged
Bearing damaged
Table 17: Malfunctions when starting – Vibrations
Rubbing of rotating parts
Normal behaviour, not a malfunction
Low-pressure or
high-pressure
stage
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 Turbocharg-
ing Service Station.
 Have a dimension check carried out by an ABB Turbocharging Service Station.
Table 18: Malfunctions when starting – Rubbing of rotating parts