ABB A150-M67 Operation Manual page 94

Operation Manual / 4 Product description / A150-M56/66/57/67 -
A155-M..
7 Eliminating malfunctions / 7.4 Malfunctions when stopping
7.4 Malfunctions when stopping
Runout noises
Possible causes
Turbochar- Turbocharger contaminated
ger
Bearing damaged
Rotor rubbing
Foreign object in the tur-
bocharger
Table 29: 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 30: Malfunctions when stopping – Runout time too short
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Remedy
Clean (see chapter Periodic maintenance work
→39)
Check clearances (see chapter
ance A and B →94). If clearances are outside the
tolerance or if in doubt, contact an ABB Turbochar-
ging Service Station.
Check clearances (see chapter
and R →104). If clearances are outside the toler-
ance or if in doubt, contact an ABB Turbocharging
Service Station.
Dismantle turbocharger (see chapter Fitting and
dismantling). In case of damage, replace the cor-
responding parts or contact an ABB Turbochar-
ging Service Station.
Remedy
Clean (see chapter Periodic maintenance work
→39)
Check clearances (see chapter
ance A and B →94). If clearances are outside the
tolerance or if in doubt, contact an ABB Turbochar-
ging Service Station.
Check clearances (see chapter
→104). If clearances are outside the toler-
and R
ance or if in doubt, contact an ABB Turbocharging
Service Station.
Dismantle turbocharger (see chapter Fitting and
dismantling). In case of damage, replace the cor-
responding parts or contact an ABB Turbochar-
ging Service Station.
HZTL4032_EN
Measuring clear-
Radial clearances N
Measuring clear-
Radial clearances N
Rev.P March 2020