Locking The Rotor - ABB HT572043 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 lubricat-
ing 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 tur-
bocharger.
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