Operation Manual / A170-M.. - A175-M..
Table of contents
© Copyright 2022 ABB. All rights reserved. HZTL4033_EN Rev.K January 2022
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 ........................................................................................... 94
9.9 Installing the cartridge group .................................................................................. 99
9.10 Fitting the spinner nose cone ................................................................................ 102
9.11 Installing the compressor casing .......................................................................... 104
9.12 Axial clearance A after assembly............................................................................ 108
9.13 Installing the air inlets ............................................................................................. 109
9.14 Removing and installing turbine-end nozzle ring................................................ 112
9.15 Table of tightening torques..................................................................................... 116
10 Taking a turbocharger out of operation......................................................... 119
10.1 Possible emergency repairs..................................................................................... 119
10.2 Locking the rotor ...................................................................................................... 120
10.3 Fitting the cover plate............................................................................................... 123
10.4 Blanking off the inlets and outlets ......................................................................... 125
10.5 Engines with bypass around the turbocharger ................................................... 125
11 Mothballing the turbocharger.......................................................................... 126
11.1 Taking the engine out of operation for up to 12months .................................. 126
11.2 Taking the engine out of operation for more than 12months ......................... 127
12 Material and Disposal........................................................................................ 128
12.1 REACH and RoHS Compliance Declaration For Products .................................. 128
12.2 Disposing of turbocharger components .............................................................. 129
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