4.6.1 General piping checklist ................................................................................................................44
4.6.2 Suction-piping checklist.................................................................................................................46
4.6.3 Discharge piping checklist.............................................................................................................49
5 Commissioning, Startup, Operation, and Shutdown ...................................................................................51
5.1 Preparation for startup............................................................................................................................. 51
5.2 Remove the coupling guard ....................................................................................................................52
5.3 Check the rotation ...................................................................................................................................54
5.4 Impeller-clearance check ........................................................................................................................54
5.4.1 Impeller clearances (NM 3196) .....................................................................................................55
5.5 Impeller-clearance setting .......................................................................................................................55
5.5.1 Set the impeller clearance - dial indicator method (all except CV 3196, CV 3198, and LF 3196
size 1x1.5-4) ...................................................................................................................................56
5.5.2 Set the impeller clearance - feeler gauge method (all except CV 3196, CV3198 and LF 3196 size
1x1.5-4)............................................................................................................................................ 57
5.6 Couple the pump and driver .................................................................................................................... 58
5.6.1 Install the coupling guard .............................................................................................................. 59
5.6.2 Bearing lubrication ........................................................................................................................ 63
5.7 Shaft-sealing options...............................................................................................................................65
5.7.1 Mechanical seal options................................................................................................................65
5.7.2 Connection of sealing liquid for mechanical seals ........................................................................ 66
5.8 Install the shaft guard - if provided ..........................................................................................................66
5.9 Pump priming ..........................................................................................................................................66
5.9.1 Prime the pump with the suction supply above the pump.............................................................66
5.9.2 Prime the pump with the suction supply below the pump ............................................................. 67
5.9.3 Other methods of priming the pump..............................................................................................68
5.10 Start the pump.......................................................................................................................................68
5.11 Activate the i-ALERT® Health Monitor ..................................................................................................69
5.12 i-ALERT®2 Equipment Health Monitor..................................................................................................70
5.13 Pump operation precautions .................................................................................................................70
5.14 Shut down the pump .............................................................................................................................71
5.15 Deactivate the i-ALERT®2 Equipment Health Monitor..........................................................................72
5.16 Reset the i-ALERT®2 Health Monitor ...................................................................................................72
5.17 Make the final alignment of the pump and driver ..................................................................................72
6 Maintenance..................................................................................................................................................... 74
6.1 Maintenance schedule ............................................................................................................................74
6.2 Bearing maintenance ..............................................................................................................................75
6.2.1 Lubricating-oil requirements..........................................................................................................75
6.2.2 Regrease the grease-lubricated bearings .....................................................................................76
6.2.3 Lubricate the bearings after a shutdown period ............................................................................77
6.3 Shaft seal maintenance...........................................................................................................................78
6.3.1 Mechanical-seal maintenance.......................................................................................................78
6.4 Disassembly ............................................................................................................................................ 78
6.4.1 Disassembly precautions .............................................................................................................. 78
6.4.2 Tools required................................................................................................................................ 79
6.4.3 Drain the pump..............................................................................................................................79
6.4.4 Remove the coupling .................................................................................................................... 80
6.4.5 Remove the back pull-out assembly ............................................................................................. 80
6.4.6 Remove the coupling hub ............................................................................................................. 82
6.4.7 Impeller removal............................................................................................................................83
Table of Contents
2 Model NM 3196 i-FRAME Installation, Operation, and Maintenance Manual