Operation Manual / A100-L
10 Taking a turbocharger out of operation / 10.2 Taking defective tur-
bochargers out of operation
© Copyright 2021 ABB. All rights reserved. HZTL4034_EN Rev.T December 2021
10.2.2 Procedure with two or more installed turbochargers per
engine
CAUTION
Machine damage due to too high turbocharger speed
The permissible turbocharger speed for the unlocked turbocharger may not
exceed n
Bmax
. Serious damage to engine or property can be caused by ex-
cessive speeds. The values provided by the enginebuilder apply to the max-
imum admissible engine load.
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 →112).
u Continue to operate engine in accordance with enginebuilder's instructions. Observe the
prescribed power reduction.
10.2.3 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
A190-L M12 75
Table47: Tightening torqueB
1
,B
2
Page 109 / 141
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