
4.4.13 Installation and startup checklist ................................................................................................. 60
5 Commissioning, Startup, Operation, and Shutdown ...................................................................................63
5.1 Preparation for startup............................................................................................................................. 63
5.1.1 Prepare for startup ........................................................................................................................ 65
5.2 Pump priming ..........................................................................................................................................66
5.3 Start the pump.........................................................................................................................................66
5.4 Pump operation precautions ................................................................................................................... 67
5.5 Mechanical seal leaks .............................................................................................................................68
5.6 Stuffing box leaks .................................................................................................................................... 68
5.7 Shut down the pump ............................................................................................................................... 68
5.8 Lubricate the thrust pot during a shutdown period ..................................................................................69
6 Maintenance.....................................................................................................................................................70
6.1 Maintenance schedule ............................................................................................................................ 70
6.2 Adjust and replace the packing ...............................................................................................................71
6.2.1 Adjust the packing when leaking is excessive ..............................................................................71
6.2.2 Adjust the packing when there is overheating or no leaks ............................................................71
6.3 Thrust pot lubrication guidelines.............................................................................................................. 72
6.4 Disassembly ............................................................................................................................................ 72
6.4.1 Disassembly precautions .............................................................................................................. 72
6.4.2 Disassemble the head and column ...............................................................................................73
6.4.3 Bowl disassembly..........................................................................................................................73
6.4.4 Remove the bowl and impeller wear rings .................................................................................... 74
6.4.5 Remove the bowl, suction bell, and lineshaft bearings ................................................................. 74
6.5 Pre-assembly inspections ....................................................................................................................... 75
6.5.1 Replacement guidelines................................................................................................................ 75
6.6 Reassembly............................................................................................................................................. 76
6.6.1 Installing the turbine bowl and impeller wear ring ......................................................................... 76
6.6.2 Installing the bowl, suction bell, and lineshaft bearings ................................................................ 76
6.6.3 Installing the taper collet bowl assembly....................................................................................... 76
6.6.4 Installing the keyed bowl assembly............................................................................................... 78
6.6.5 Pump shaft setup dimensions .......................................................................................................78
6.6.6 Tightening torques......................................................................................................................... 79
7 Troubleshooting .............................................................................................................................................. 80
7.1 Operation troubleshooting ....................................................................................................................... 80
8 Parts Listings and Cross-Sectionals.............................................................................................................84
8.1 VIT product lube (includes VIDS detail) .................................................................................................. 84
8.2 VIT enclosed lineshaft ............................................................................................................................. 86
8.3 VIC-T ....................................................................................................................................................... 91
8.4 VIC-L .......................................................................................................................................................93
9 Annex I .............................................................................................................................................................96
9.1 Example of VIC-L barrel installation ........................................................................................................ 96
10 Annex II ........................................................................................................................................................101
10.1 Tightening torque tables......................................................................................................................101
11 CE Declaration of Conformity..................................................................................................................... 105
11.1 CE Declaration of Conformity ..............................................................................................................105
Table of Contents
2 Model VIT, VIC and VIDS Installation, Operation, and Maintenance Manual