ABB HT603383 Operation Manual page 4

Operation Manual / A170-M.. - A175-M..
Table of contents
6.3 Expected replacement intervals ............................................................................... 51
6.4 Stopping the engine................................................................................................... 52
7 Periodic maintenance.......................................................................................... 53
7.1 Foreword to maintenance......................................................................................... 53
7.2 Cleaning the filter silencer ........................................................................................ 54
7.3 Cleaning the slotted diffuser..................................................................................... 57
7.4 Cleaning the compressor during operation .......................................................... 58
7.5 Cleaning turbine and nozzle ring ............................................................................. 64
8 Troubleshooting................................................................................................... 70
8.1 Malfunctions when starting...................................................................................... 70
8.2 Malfunctions during operation ................................................................................. 71
8.3 Surging of the turbocharger...................................................................................... 73
8.4 Malfunctions when stopping.................................................................................... 74
8.5 Speed measurement system ..................................................................................... 75
9 Disassembly and assembly................................................................................. 76
9.1 Introduction ................................................................................................................. 76
9.2 Weight of assemblies................................................................................................. 78
9.3 Removing the air inlets .............................................................................................. 79
9.4 Axial clearance A prior to disassembly .................................................................... 81
9.5 Removing the compressor casing ........................................................................... 82
9.6 Removing the cartridge group ................................................................................. 86
9.7 Removing the nozzle ring .......................................................................................... 89
9.8 Installing the nozzle ring ........................................................................................... 93
9.9 Installing the cartridge group .................................................................................. 98
9.10 Fitting the spinner nose cone ................................................................................. 101
9.11 Installing the compressor casing .......................................................................... 103
9.12 Axial clearance A after assembly............................................................................ 107
9.13 Installing the air inlets ............................................................................................. 108
9.14 Removing and installing turbine-end nozzle ring................................................ 110
9.15 Table of tightening torques..................................................................................... 114
10 Taking a turbocharger out of operation.......................................................... 117
10.1 Possible emergency repairs..................................................................................... 117
10.2 Locking the rotor ....................................................................................................... 118
10.3 Fitting the cover plate............................................................................................... 121
10.4 Blanking off the inlets and outlets ......................................................................... 123
10.5 Engines with bypass around the turbocharger ................................................... 123
11 Mothballing the turbocharger.......................................................................... 124
11.1 Taking the engine out of operation for up to 12 months .................................. 124
11.2 Taking the engine out of operation for more than 12 months ......................... 125
12 Disposing of turbocharger components ........................................................ 126
© Copyright 2020 ABB. All rights reserved. HZTL4033_EN Rev.G December 2020