Operation Manual / Power2 650-M / Low-pressure stage
Table of contents
© Copyright 2022 ABB. All rights reserved. HZTL4065_EN Rev.E March 2022
6.2 Service work................................................................................................................. 46
6.3 Expected replacement intervals .............................................................................. 48
6.4 Stopping the engine................................................................................................... 49
7 Periodic maintenance.......................................................................................... 50
7.1 Foreword to maintenance......................................................................................... 50
7.2 Cleaning the compressor during operation ........................................................... 51
7.3 Cleaning turbine and nozzle ring during operation ............................................. 54
7.4 Cleaning the filter silencer ........................................................................................ 54
8 Troubleshooting................................................................................................... 59
8.1 Malfunctions when starting...................................................................................... 59
8.2 Malfunctions during operation ................................................................................ 60
8.3 Surging of the low-pressure or high-pressure stage .......................................... 64
8.4 Malfunctions when stopping.................................................................................... 65
8.5 Speed measurement system.................................................................................... 65
9 Disassembly and assembly ................................................................................ 66
9.1 Introduction ................................................................................................................. 66
9.2 Material required......................................................................................................... 67
9.3 Weights of assemblies............................................................................................... 68
9.4 Removing the filter silencer and injection ring..................................................... 69
9.5 Removing the air suction branch and injection ring............................................ 70
9.6 Axial clearance A prior to disassembly .................................................................... 71
9.7 Removing the wall insert ............................................................................................ 72
9.8 Removing the compressor casing ........................................................................... 74
9.9 Removing the cartridge group.................................................................................. 75
9.10 Removing turbine diffuser and nozzle ring ............................................................ 77
9.11 Installing turbine diffuser and nozzle ring............................................................. 79
9.12 Installing the cartridge group ................................................................................... 81
9.13 Installing the compressor casing ............................................................................ 84
9.14 Installing the wall insert ............................................................................................ 85
9.15 Axial clearance A after assembly.............................................................................. 87
9.16 Installing the air suction branch and injection ring ............................................. 88
9.17 Installing the filter silencer and injection ring ...................................................... 89
9.18 Table of tightening torques...................................................................................... 90
10 Taking out of operation at short notice ........................................................... 91
10.1 Possible emergency repairs....................................................................................... 91
11 Taking out of operation for a long period........................................................ 94
11.1 General .......................................................................................................................... 94
11.2 Lubricating oil.............................................................................................................. 94
11.3 Process for taking out of operation........................................................................ 94
12 Material and Disposal.......................................................................................... 95
12.1 REACH and RoHS Compliance Declaration For Products ................................... 95
12.2 Disposing of low-pressure and high-pressure stage components .................. 96
