ABB A175-M52 - Fig. 67: Removing the Nozzle Ring at the Turbine End (Radial Gas Inlet Casing); Fig. 68: Removing the Nozzle Ring at the Turbine End (Axial Gas Inlet Casing)

Operation Manual / A170-M.. - A175-M..
9 Disassembly and assembly / 9.14 Removing and installing turbine-
end nozzle ring
© Copyright 2020 ABB. All rights reserved. HZTL4033_EN Rev.G December 2020
Fig.67: Removing the nozzle ring at the turbine end (radial gas inlet casing)
Fig.68: Removing the nozzle ring at the turbine end (axial gas inlet casing)
1. If present: Remove connecting pipe for turbine cleaning.
2. Loop around gas inlet casing (51001) and secure with lifting gear.
3. Loosen screws (61009) and move out gas inlet casing with nozzle ring.
4. Bend open locking washers (56015), loosen and remove screws (56014).
5. Pull out nozzle ring (56001).
6. Remove spiral-wound gasket (61050) and provide new one.
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