Operation Manual / 4 Product description / A100-L
9 Taking a turbocharger out of operation / 9.2 Taking defective tur-
bochargers out of operation
© Copyright 2018 ABB. All rights reserved. HZTL4034_EN Revision N November 2018
9.2.2 Procedure with two or more installed turbochargers per
engine
CAUTION
Machine damage due to too high a speed
The permissible turbocharger speed for the unlocked turbocharger may not
exceed 45% of n
Bmax
. Serious damage to engine or property can be caused by
excessive speeds.
u Observe the permissible turbocharger speed for the unlocked turbochar-
ger.
u Reduce the engine load if necessary.
u Stop the engine.
u Close off oil supply to defective turbocharger.
u Blank off the inlets and outlets of the defective turbocharger (see chapter Blanking off
the inlets and outlets →97).
u Continue to operate engine in accordance with enginebuilder's instructions. Observe the
prescribed power reduction.
9.2.3 Locking the rotor
Fig.64: Locking the rotor
Product Thread Tightening torques of screws B
1
,B
2
[Nm]
A165-L M6 10
A170-L M8 25
A175-L M10 45
A180-L M10 45
A185-L M12 75
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