Operation Manual / Power2 850-M / 4.1 Low-pressure stage
4 Disassembly and assembly / 4.9 Removing turbine diffuser and
nozzle ring
© Copyright 2019 ABB. All rights reserved.
HZTL4062_EN
Revision A
March 2019
4.9
Removing turbine diffuser and nozzle ring
Fig. 15: Removing turbine diffuser and nozzle ring 1
1. Loosen and remove the screws (61056).
2. Secure connecting flange (90428) to star plate (90414) with screws (90950) and nuts
(90431).
3. Align arm of star plate (90414) marked FRONT in direction of gas outlet flange and screw
star plate to turbine diffuser with screws (90961).
Fig. 16: Removing turbine diffuser and nozzle ring 2
4. Loosely screw in three press-off screws (90902).
5. Secure guide tube (90422) to bracket (90030) with screws (90955) and nuts (90415).
6. Do not fit front bolt (90033) yet.
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