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Operation Manual / A170-M.. - A175-M..
9 Disassembly and assembly / 9.7 Removing the nozzle ring
9.7
Removing the nozzle ring
Removing the turbine diffuser
CAUTION
Risk of mixing up the press-off screws
In size A170-M, the press-off screw (90915) for pressing off the turbine dif-
fuser with thread size M18x1.0 can easily be mixed up with the press-off
screw (90901) with thread size M18x1.5. If the press-off screws are mixed up,
the thread of the turbine diffuser can be damaged.
Always use the appropriate press-off screws.
u
Fig. 44: Removing turbine diffuser 1
1. Remove screws (61069).
2. Using press-off screws (90915), press off turbine diffuser.
3. Fit guide plates (90328) with nuts (61037).
4. Screw in guide stud (90802).
© Copyright 2022 ABB. All rights reserved.
HZTL4033_EN
Rev.K
January 2022
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