Xylem FLYGT Concertor, Installation, Operation And Maintenance Manual

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6.3.2 Service in case of alarm..............................................................................................34
7 Maintenance..............................................................................................................................35
7.1 Torque values.....................................................................................................................36
7.2 Maintenance intervals....................................................................................................... 37
7.2.1 Inspection.................................................................................................................... 37
7.2.2 Overhaul...................................................................................................................... 38
7.3 Drain the liquid from the stator housing.........................................................................38
7.4 Change the oil....................................................................................................................39
7.5 Replace the impeller: P, S, T, Z installations................................................................... 42
7.5.1 Remove the pump from the installation: T, Z installations.................................... 42
7.5.2 Remove the impeller.................................................................................................. 44
7.5.3 Install the impeller...................................................................................................... 44
8 Troubleshooting....................................................................................................................... 47
8.1 Dirigo
™
Service Tool..........................................................................................................47
8.2 The pump does not start...................................................................................................50
8.3 The impeller does not rotate............................................................................................51
8.4 The pump starts but stops after 10 seconds.................................................................. 51
8.5 The pump stops................................................................................................................. 52
8.6 The pump does not receive commands from the controller / RTU / PLC.................. 52
8.7 The pump starts-stops-starts in rapid sequence............................................................52
8.8 The pump delivers too little or no water.........................................................................53
8.9 Dirigo
™
Service Tool: The communication with the unit fails.......................................54
9 Technical Reference.................................................................................................................55
9.1 Motor data.......................................................................................................................... 55
9.2 Application limits............................................................................................................... 55
9.3 Minimum permitted liquid level...................................................................................... 55
Table of Contents
2 6020.180/090 Installation, Operation, and Maintenance Manual