Operation Manual / A150-M56/66/57/67 - A155-M..
8 Eliminating malfunctions / 8.4 Malfunctions when stopping
© Copyright 2022 ABB. All rights reserved.
HZTL4032_EN
Rev.S
February 2022
8.4
Malfunctions when stopping
Runout noises
Possible causes
Remedy
Turbochar-
ger
Turbocharger contaminated
Clean (see chapter
)
Bearing damaged
). If clearances are outside the
tolerance or if in doubt, contact a Turbo Systems
service station.
Rotor rubbing
). If clearances are outside the toler-
ance or if in doubt, contact a Turbo Systems ser-
vice station.
Foreign object in the tur-
bocharger
Dismantle the turbocharger (see chapter Fitting
and dismantling). In case of damage, replace the
corresponding parts or contact a Turbo Systems
service station.
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
Remedy
Turbochar-
ger
Turbocharger contaminated
Clean (see chapter
)
Bearing damaged
). If clearances are outside the
tolerance or if in doubt, contact a Turbo Systems
service station.
Rotor rubbing
). If clearances are outside the toler-
ance or if in doubt, contact a Turbo Systems ser-
vice station.
Foreign object in the tur-
bocharger
Dismantle the turbocharger (see chapter Fitting
and dismantling). In case of damage, replace the
corresponding parts or contact a Turbo Systems
service station.
Table 34: Malfunctions when stopping – Runout time too short
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