Operation Manual / 4 Product description / A100-M axial
8 Disassembly and assembly / 8.7 Removing nozzle ring
© Copyright 2019 ABB. All rights reserved. HZTL4033_DE Revision C February 2019
Removing nozzle ring
Fig.42: Removing nozzle ring 1
1. Bend open locking washers (56015), undo and remove screws (56014).
2. Secure retaining plate (90338) with screws (90339) and hook guide rod (90336) into re-
taining plate.
3. Fit guide plate (90328) with nuts (61037).
Fig.43: Removing nozzle ring 2
4. Pull nozzle ring (56001) out as far as it will go at guide plate.
5. Loop around nozzle ring (56001) and secure to lifting gear.
6. Remove guide plate (90328) and nuts (61037).
7. Fully pull out and put down nozzle ring (56001).
Blocked areas on nozzle ring
If a nozzle ring is blocked in some areas or is covered by loose parts, we would recommend
appointing an ABB Turbocharging Service Station to inspect the turbine blades and carry out
a crack inspection.
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