
Operation Manual / Power2 550-M / High-pressure stage
Table of contents
© Copyright 2022 ABB. All rights reserved. HZTL4058_EN Rev.F March 2022
6.2 Service work................................................................................................................. 52
6.3 Expected replacement intervals .............................................................................. 54
6.4 Stopping the engine................................................................................................... 56
7 Periodic maintenance.......................................................................................... 57
7.1 Foreword to maintenance.......................................................................................... 57
7.2 Cleaning the compressor during operation .......................................................... 58
7.3 Cleaning the high-pressure stage bellows (if present)....................................... 60
7.4 Cleaning turbines and nozzle rings during operation ......................................... 60
8 Troubleshooting................................................................................................... 67
8.1 Malfunctions when starting...................................................................................... 67
8.2 Malfunctions during operation ................................................................................ 68
8.3 Surging of the low-pressure or high-pressure stage ........................................... 72
8.4 Malfunctions when stopping..................................................................................... 73
8.5 Speed measurement system.................................................................................... 74
9 Disassembly and assembly................................................................................. 75
9.1 Introduction .................................................................................................................. 75
9.2 Material required......................................................................................................... 76
9.3 Weights of assemblies............................................................................................... 78
9.4 Removing the gas outlet casing .............................................................................. 79
9.5 Removing air inlets ..................................................................................................... 80
9.6 Removing the compressor casing ............................................................................ 81
9.7 Removing the cartridge group................................................................................. 82
9.8 Installing the cartridge group .................................................................................. 85
9.9 Installing the compressor casing ............................................................................ 88
9.10 Installing the air inlets ............................................................................................... 89
9.11 Installing the gas outlet casing................................................................................ 90
9.12 Measuring radial clearances N and R ....................................................................... 91
9.13 Measuring clearance A and B.................................................................................... 92
9.14 Table of tightening torques...................................................................................... 93
10 Taking out of operation at short notice ........................................................... 94
10.1 Possible emergency repairs...................................................................................... 94
10.2 Installing a replacement cartridge group .............................................................. 95
10.3 Fitting the cover plate................................................................................................ 96
10.4 Cover plate drawing ................................................................................................... 97
11 Taking out of operation for a long period........................................................ 99
11.1 General .......................................................................................................................... 99
11.2 Lubricating oil.............................................................................................................. 99
11.3 Process for taking out of operation........................................................................ 99
12 Material and Disposal........................................................................................ 100
12.1 REACH and RoHS Compliance Declaration For Products ................................. 100
12.2 Disposing of low-pressure and high-pressure stage components ................. 101