Operation Manual / A150-M58/68
8 Eliminating malfunctions / 8.1 Malfunctions when starting
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HZTL4041_EN
Rev.F
February 2022
8
Eliminating malfunctions
8.1
Malfunctions when starting
Delayed start-up
Possible causes
Remedy
Turbochar-
ger
Turbocharger contaminated
Bearing damaged
Contact a Turbo Systems service sta-
tion
Rotor rubbing
Foreign object in the turbocharger
Table 17: Malfunctions when starting – Delayed start-up
Vibrations
Possible causes
Remedy
Turbochar-
ger
Rotor unbalance
Contact a Turbo Systems service sta-
tion
Turbine or compressor damaged
Bearing damaged
Engine
Vibrations from engine
Contact enginebuilder
Table 18: Malfunctions when starting – Vibrations
Rubbing of rotating parts
Normal behaviour, not a malfunction
Turbochar-
ger
A slight amount of 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 a Turbo Sys-
tems service station.
¡
Have a dimension check carried out by a Turbo Systems service station.
Table 19: Malfunctions when starting – Rubbing of rotating parts
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