Malfunctions When Stopping; Table 33: Malfunctions When Stopping - Runout Noises; Table 34: Malfunctions When Stopping - Runout Time Too Short - ABB HT611077 Operation Manual

Operation Manual / A150-M56/66/57/67 - A155-M..
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 33: 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 34: Malfunctions when stopping – Runout time too short
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Remedy
Clean (see chapter Periodic maintenance work
→59)
Check clearances (see chapter
ance A and B →116). If clearances are outside the
tolerance or if in doubt, contact a Turbo Systems
service station.
Check clearances (see chapter
and R →126). If clearances are outside the toler-
ance or if in doubt, contact a Turbo Systems ser-
vice station.
Dismantle the turbocharger (see chapter Fitting
and dismantling). In case of damage, replace the
corresponding parts or contact a Turbo Systems
service station.
Remedy
Clean (see chapter Periodic maintenance work
→59)
Check clearances (see chapter
ance A and B →116). If clearances are outside the
tolerance or if in doubt, contact a Turbo Systems
service station.
Check clearances (see chapter
and R →126). If clearances are outside the toler-
ance or if in doubt, contact a Turbo Systems ser-
vice station.
Dismantle the turbocharger (see chapter Fitting
and dismantling). In case of damage, replace the
corresponding parts or contact a Turbo Systems
service station.
HZTL4032_EN
Measuring clear-
Radial clearances N
Measuring clear-
Radial clearances N
Rev.S February 2022