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Malfunctions When Stopping; Table 27: Malfunctions When Stopping - Runout Noises; Table 28: Malfunctions When Stopping - Runout Time Too Short - ABB HT612827 Operation Manual

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Operation Manual / A130-H.. - A140-H..
8 Eliminating malfunctions / 8.4 Malfunctions when stopping
8.4

Malfunctions when stopping

Runout noises
Possible causes
Turbochar-
Turbocharger contaminated
ger
Bearing damaged
Rotor rubbing
Foreign object in the tur-
bocharger
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
Turbochar-
Turbocharger contaminated
ger
Bearing damaged
Rotor rubbing
Foreign object in the tur-
bocharger
Table 28: Malfunctions when stopping – Runout time too short
© Copyright 2021 ABB. All rights reserved.
Remedy
Clean (see chapter
Periodic maintenance work
→60)
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.
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.
Dismantle turbocharger (see chapter
and fitting
→78). In case of damage, replace the
corresponding parts or contact an ABB Turbochar-
ging Service Station.
Remedy
Clean (see chapter
Periodic maintenance work
→60)
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.
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.
Dismantle turbocharger (see chapter
and fitting
→78). In case of damage, replace the
corresponding parts or contact an ABB Turbochar-
ging Service Station.
HZTL4030_EN
Dismantling
Dismantling
Rev.G
July 2021

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