Locking The Rotor - ABB HT563830 Operation Manual

9.2
9.2
CAUTION
NOTICE
CAUTION
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Operation Manual / TPL65-A32 / -A33 / -A36 + TPL69-A32 / -A33
Taking out of operation at short notice

Locking the rotor

Locking the rotor
A locked rotor must be removed and checked for unbalance after the
turbocharger repair.
An exception is a test rig run up to a maximum of 25% of the engine
load in the case of new engines with one or several turbochargers. This
is sometimes requested by customers. As operation with a locked rotor
is only brief and the loads are low in these cases, subsequent removal
of the rotor is not necessary.
During operation of the engine with a blocked turbocharger, the
lubricating oil system must remain connected to this turbocharger also
and be turned on if the gas inlet cannot be blocked. (See section
Further measures and information for operation with a blocked rotor for
4-stroke engines.) Otherwise components that are still intact can be
damaged through overheating.
Shut off the oil supply in the event of lubricating oil leaking from the
turbocharger.
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