ABB Power2 845-M46, Operation Manual, Page: 93 / 174

Operation Manual / Power2 845-M / 4.1 Low-pressure stage
Table of contents
© Copyright 2018 ABB. All rights reserved. HZTL4068_EN Revision A March 2018
Low-pressure stage
1 Further applicable documents ............................................................................. 2
2 Removal and installation ...................................................................................... 3
2.1 Transport / weight ........................................................................................................ 3
2.2 Removing the low-pressure stage............................................................................. 4
2.3 Installing the low-pressure stage ............................................................................... 5
3 Expected replacement intervals .......................................................................... 6
4 Disassembly and assembly................................................................................... 8
4.1 Introduction ................................................................................................................... 8
4.2 Weights of assemblies................................................................................................ 10
4.3 Removing the air suction branch.............................................................................. 11
4.4 Removing the filter silencer ....................................................................................... 12
4.5 Axial clearance A prior to disassembly .................................................................... 13
4.6 Removing wall insert ................................................................................................... 14
4.7 Removing the compressor casing ............................................................................ 16
4.8 Removing the cartridge group .................................................................................. 17
4.9 Removing turbine diffuser and nozzle ring ............................................................ 19
4.10 Installing the nozzle ring and turbine diffuser....................................................... 21
4.11 Installing the cartridge group ................................................................................... 23
4.12 Installing the compressor casing ............................................................................ 26
4.13 Installing the wall insert ............................................................................................. 27
4.14 Axial clearance A after assembly.............................................................................. 29
4.15 Installing the filter silencer ....................................................................................... 30
4.16 Installing the air suction branch ............................................................................... 31
4.17 Table of tightening torques....................................................................................... 32
5 Taking out of operation at short notice ........................................................... 34
5.1 Possible emergency repairs...................................................................................... 34
6 Spare parts ........................................................................................................... 37
6.1 Ordering spare parts................................................................................................... 37
6.2 View of low-pressure stage with part numbers ................................................... 40
Figures................................................................................................................... 42
Tables .................................................................................................................... 43