Malfunctions When Stopping; Table 28: Malfunctions When Stopping - Runout Noises; Table 29: Malfunctions When Stopping - Runout Time Too Short - ABB HT591886 Operation Manual

Operation Manual / 4 Product description / A130-M.. - A145-M..
7 Eliminating malfunctions / 7.4 Malfunctions when stopping
7.4

Malfunctions when stopping

Runout noises
Possible causes
Turbocharger Turbocharger contaminated
Bearing damaged
Rotor rubbing
Foreign object in the tur-
bocharger
Table 28: 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
Turbocharger Turbocharger contaminated
Bearing damaged
Rotor rubbing
Foreign object in the tur-
bocharger
Table 29: Malfunctions when stopping – Runout time too short
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Remedy
Clean (see chapter Periodic maintenance work
→42)
Check clearances (see chapter
A and B →83). 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 Fitting and
dismantling). In case of damage, replace the corres-
ponding parts or contact an ABB Turbocharging
Service Station.
Remedy
Clean (see chapter Periodic maintenance work
→42)
Check clearances (see chapter
A and B →83). 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 Fitting and
dismantling). In case of damage, replace the corres-
ponding parts or contact an ABB Turbocharging
Service Station.
HZTL4031_EN
Measuring clearance
Measuring clearance
Revision H March 2019