ABB A140-H55, Operation Manual

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Operation Manual / 4 Product description / A130-H.. - A140-H..
7 Eliminating malfunctions Page 70 / 115
© Copyright 2015 ABB. All rights reserved. HZTL4030_EN Revision C September 2015
7.4 Malfunctions when stopping
Runout noises
Possible causes Remedy
Turbocharger Turbocharger contaminated Clean (see chapter Periodic maintenance work [ ➙ 45])
Bearing damaged Check clearances (see chapter Axial clearance A and
radial clearance B [➙ 87]). If clearances are outside
the tolerance or if in doubt, contact an ABB
Turbocharging Service Station.
Rotor rubbing Check clearances (see chapter Radial clearances N
and R [➙ 95]). If clearances are outside the tolerance
or if in doubt, contact an ABB Turbocharging Service
Station.
Foreign object in the
turbocharger
Dismantle turbocharger (see chapter Dismantling and
fitting [➙ 73]). In case of damage, replace the
corresponding parts or contact an ABB Turbocharging
Service Station.
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
following table must be observed.
Possible causes Remedy
Turbocharger Turbocharger contaminated Clean (see chapter Periodic maintenance work [ ➙ 45])
Bearing damaged Check clearances (see chapter Axial clearance A and
radial clearance B [➙ 87]). If clearances are outside
the tolerance or if in doubt, contact an ABB
Turbocharging Service Station.
Rotor rubbing Check clearances (see chapter Radial clearances N
a nd R [➙ 95]). If clearances are outside the tolerance
or if in doubt, contact an ABB Turbocharging Service
Station.
Foreign object in the
turbocharger
Dismantle turbocharger (see chapter Dismantling and
fitting [➙ 73]). In case of damage, replace the
corresponding parts or contact an ABB Turbocharging
Service Station.
Table 29: Malfunctions when stopping – Runout time too short