Xylem Flygt 3102.060 - 1.3 User Safety

5 Operation.................................................................................................................................. 41
5.1 Precautions......................................................................................................................... 41
5.2 Estimate zinc anode replacement intervals....................................................................41
5.3 Start the pump....................................................................................................................42
6 Maintenance..............................................................................................................................43
6.1 Precautions......................................................................................................................... 43
6.2 Torque values.....................................................................................................................44
6.3 Change the oil....................................................................................................................44
6.4 Service the pump...............................................................................................................46
6.4.1 Inspection.................................................................................................................... 47
6.4.2 Overhaul...................................................................................................................... 48
6.4.3 Service in case of alarm..............................................................................................48
6.5 Replace the impeller......................................................................................................... 48
6.5.1 Replace the impeller: D............................................................................................. 49
6.5.2 Replace the F-impeller............................................................................................... 52
6.5.3 Replace the M-impeller..............................................................................................57
6.5.4 Replacing the Adaptive N
™
impeller........................................................................61
7 Troubleshooting....................................................................................................................... 66
7.1 Electrical troubleshooting.................................................................................................66
7.2 The pump does not start...................................................................................................66
7.3 The pump does not stop when a level sensor is used.................................................. 67
7.4 The pump starts-stops-starts in rapid sequence............................................................68
7.5 The pump runs but the motor protection trips..............................................................68
7.6 The pump delivers too little or no water.........................................................................69
8 Technical Reference.................................................................................................................71
8.1 Application limits............................................................................................................... 71
8.2 Motor data.......................................................................................................................... 71
Table of Contents
2 Flygt 3102 Installation, Operation, and Maintenance Manual