4.6.5 Auxiliary-piping checklist ...............................................................................................................41
4.6.6 Final piping checklist .....................................................................................................................41
5 Commissioning, Startup, Operation, and Shutdown ................................................................................... 42
5.1 Preparation for startup.............................................................................................................................42
5.2 Remove the coupling guard ....................................................................................................................43
5.3 Check the rotation ...................................................................................................................................44
5.4 Couple the pump and driver ....................................................................................................................45
5.4.1 Coupling guard assembly..............................................................................................................45
5.4.2 Bearing lubrication ........................................................................................................................51
5.5 Shaft sealing with a mechanical seal ......................................................................................................58
5.6 Connection of sealing liquid for mechanical seals................................................................................... 59
5.7 Pump priming ..........................................................................................................................................59
5.7.1 Prime the pump with the suction supply above the pump............................................................. 59
5.7.2 Prime the pump with the suction supply below the pump ............................................................. 60
5.7.3 Other methods of priming the pump.............................................................................................. 61
5.8 Start the pump.........................................................................................................................................61
5.9 i-ALERT®3 Equipment Health Monitor.................................................................................................... 62
5.10 Pump operation precautions .................................................................................................................62
5.11 Shut down the pump..............................................................................................................................64
5.12 Deactivate the i-ALERT®3 Equipment Health Monitor.......................................................................... 64
5.13 Reset the i-ALERT®3 Health Monitor ................................................................................................... 65
5.14 Make the final alignment of the pump and driver .................................................................................. 65
5.15 Dowel the pump casing .........................................................................................................................65
6 Maintenance.....................................................................................................................................................67
6.1 Maintenance schedule ............................................................................................................................67
6.2 Bearing maintenance ..............................................................................................................................68
6.3 Mechanical-seal maintenance.................................................................................................................68
6.4 Disassembly ............................................................................................................................................69
6.4.1 Disassembly precautions ..............................................................................................................69
6.4.2 Tools required................................................................................................................................69
6.4.3 Drain the pump..............................................................................................................................70
6.4.4 Remove the back pull-out assembly ............................................................................................. 70
6.4.5 Remove the coupling hub .............................................................................................................71
6.4.6 Remove the impeller ....................................................................................................................71
6.4.7 Remove venturi insert (venturi pumps only).................................................................................. 72
6.4.8 Remove the seal-chamber cover .................................................................................................. 73
6.4.9 Disassemble the Power End .........................................................................................................73
6.4.10 Guidelines for i-ALERT®3 Equipment Health Monitor disposal .................................................. 77
6.5 Preassembly inspections.........................................................................................................................77
6.5.1 Replacement guidelines................................................................................................................77
6.5.2 Fastening ......................................................................................................................................80
6.5.3 Shaft replacement guidelines........................................................................................................81
6.5.4 Bearings inspection.......................................................................................................................81
6.5.5 Wear rings inspection and replacement ....................................................................................... 82
6.5.6 Bearing-frame inspection ..............................................................................................................89
6.5.7 Bearing fits and tolerances............................................................................................................91
6.6.1 Assemble the power end...............................................................................................................92
Table of Contents
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Model 3700i API610 / Type OH2 Installation, Operation, and Maintenance Manual
