Operation Manual / Power2 850-M / High-pressure stage
8 Troubleshooting / 8.1 Malfunctions when starting
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HZTL4063_EN
Rev.F
March 2022
8
Troubleshooting
8.1
Malfunctions when starting
Delayed start-up
Possible causes
Remedy
Low-pressure
or
high-pressure
stage
Pressure stage contaminated
Clean
Bearing damaged
Contact a Turbo Systems service sta-
tion
Rotor rubbing
Foreign object in pressure stage
Table 23: 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 a Turbo Systems service sta-
tion
Turbine or compressor damaged
Bearing damaged
Table 24: 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 pre-
vent significant loss of efficiency, specific tolerances must be fulfilled.
¡
If there is any doubt about the extent of the rubbing, contact a Turbo
Systems service station.
¡
Have a dimension check carried out by a Turbo Systems service station.
Table 25: Malfunctions when starting – Rubbing of rotating parts
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Summary of Contents for PT004165
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