ABB XAC24782 Operation Manual page 112

Operation Manual / A100-L
10 Taking a turbocharger out of operation / 10.2 Taking defective tur-
bochargers out of operation
1. If present: Unscrew and remove the connecting screw at the centre of the spinner nose
cone (25012). Dismantle spinner nose cone with press-off screw (90924).
2. Loosen retaining nuts (N) and remove screws (B
3. Turn back the screw (B
4. Position the slot of the locking device on a fin of the wall insert (77000).
5. Align the hole circle of the locking device with the threaded holes in the compressor
wheel (25000).
6. Secure the locking device to the compressor wheel with the maximum possible number
of screws (B ). Observe the tightening torque. Assembly with at least 6 screws is mandat-
1
ory.
The maximum possible number of screws to be fitted (B
compressor wheel are partially occupied by set screws.
7. Fit screws (B ). Observe the tightening torque.
2
10.2.4 Engines with bypass around the turbocharger
The chapter only applies for engines with one turbocharger and for systems on which the
connections for a bypass have been prepared and the necessary pipe connections have been
provided.
Close the lubricating oil supply to the turbocharger.
u
Open the bypass around the turbocharger.
u
Observe specifications from enginebuilder.
u
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) until the slot of the locking device (94003) is free.
2
HZTL4034_EN
).
1
) varies, as the threads in the
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Rev.T December 2021