Malfunctions When Stopping; Table 29 Malfunctions When Stopping - Runout Time Too Short - ABB A155-M57 Operation Manual

Operation Manual / 4 Product description / A150-M.. - A155-M..
7 Eliminating malfunctions
7.4

Malfunctions when stopping

Runout noises
Possible causes
Turbocharger Turbocharger contaminated
Bearing damaged
Rotor rubbing
Foreign object in the turbo-
charger
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 follow-
ing table must be observed.
Possible causes
Turbocharger Turbocharger contaminated
Bearing damaged
Rotor rubbing
Foreign object in the turbo-
charger
Table 29: Malfunctions when stopping – Runout time too short
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Remedy
Clean (see chapter Periodic maintenance work [➙ 41])
Check clearances (see chapter Axial clearance A and
radial clearance B [➙ 84]). If clearances are outside the
tolerance or if in doubt, contact an ABB Turbocharging
Service Station.
Check clearances (see chapter Radial clearances N
and R [➙ 91]). If clearances are outside the tolerance
or if in doubt, contact an ABB Turbocharging Service
Station.
Dismantle turbocharger (see chapter Dismantling and
fitting [➙ 67]). In case of damage, replace the corre-
sponding parts or contact an ABB Turbocharging Ser-
vice Station.
Remedy
Clean (see chapter Periodic maintenance work [➙ 41])
Check clearances (see chapter Axial clearance A and
radial clearance B [➙ 84]). If clearances are outside the
tolerance or if in doubt, contact an ABB Turbocharging
Service Station.
Check clearances (see chapter Radial clearances N
and R [➙ 91]). If clearances are outside the tolerance
or if in doubt, contact an ABB Turbocharging Service
Station.
Dismantle turbocharger (see chapter Dismantling and
fitting [➙ 67]). In case of damage, replace the corre-
sponding parts or contact an ABB Turbocharging Ser-
vice Station.
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Revision F January 2017