Operation Manual / A130-H.. - A140-H..
8 Eliminating malfunctions / 8.4 Malfunctions when stopping
© Copyright 2021 ABB. All rights reserved.
HZTL4030_EN
Rev.G
July 2021
8.4
Malfunctions when stopping
Runout noises
Possible causes
Remedy
Turbochar-
ger
Turbocharger contaminated
Clean (see chapter
)
Bearing damaged
Check clearances (see chapter Measuring clear-
ance A and B). If clearances are outside the toler-
ance or if in doubt, contact an ABB Turbocharging
Service Station.
Rotor rubbing
Check clearances (see chapter Radial clearances N
and R). If clearances are outside the tolerance or if
in doubt, contact an ABB Turbocharging Service
Station.
Foreign object in the tur-
bocharger
Dismantle turbocharger (see chapter
). In case of damage, replace the
corresponding parts or contact an ABB Turbochar-
ging Service Station.
Table 27: Malfunctions when stopping – Runout noises
Runout time too short
The runout time must be noted down as a reference. Because the runout time depends on
the oil viscosity, the runout time must always be measured at the same oil temperature.
If the runout time is significantly shorter in comparison to a previous measurement, the fol-
lowing table must be observed.
Possible causes
Remedy
Turbochar-
ger
Turbocharger contaminated
Clean (see chapter
)
Bearing damaged
Check clearances (see chapter Measuring clear-
ance A and B). If clearances are outside the toler-
ance or if in doubt, contact an ABB Turbocharging
Service Station.
Rotor rubbing
Check clearances (see chapter Radial clearances N
and R). If clearances are outside the tolerance or if
in doubt, contact an ABB Turbocharging Service
Station.
Foreign object in the tur-
bocharger
Dismantle turbocharger (see chapter
). In case of damage, replace the
corresponding parts or contact an ABB Turbochar-
ging Service Station.
Table 28: Malfunctions when stopping – Runout time too short
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