ABB A175-M66 Operation Manual page 102

Operation Manual / 4 Product description / A100-M axial
8 Disassembly and assembly Page 72 / 113
Removing nozzle ring
Figure 40: 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 retain-
ing plate.
3. Fit guide plate (90328) with nuts (61037).
Figure 41: 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.
© Copyright 2016 ABB. All rights reserved. HZTL4033_EN Revision A July 2016