Goulds Pumps 3355 - IOM - Manual (Page 4)

Table of Contents
Start the pump ...................................................................................................................... 30
Pump operation precautions ................................................................................................. 31
Shut down the pump ............................................................................................................. 31
Make the final alignment of the pump and driver ................................................................... 32
Maintenance ........................................................................................................................... 33
Maintenance schedule .......................................................................................................... 33
Bearing maintenance ............................................................................................................ 34
Ball bearing types ............................................................................................................... 34
Grease lubrication schedule ............................................................................................... 34
Lubricating-grease requirements ........................................................................................ 34
Regrease the grease-lubricated bearings .......................................................................... 34
Lubricate the bearings after a shutdown period .................................................................. 35
Shaft-seal maintenance ........................................................................................................ 35
Mechanical-seal maintenance ............................................................................................ 35
Disassembly ......................................................................................................................... 36
Disassembly precautions ................................................................................................... 36
Tools required .................................................................................................................... 36
Drain the pump ................................................................................................................... 37
Prepare for disassembly ..................................................................................................... 37
Disassemble the discharge end ball bearing for the radial suction configuration ................ 37
Disassemble the pump body .............................................................................................. 38
Disassemble the suction end ball bearings ........................................................................ 38
Remove the shaft seal ........................................................................................................ 38
Preassembly inspections ...................................................................................................... 39
Replacement guidelines ..................................................................................................... 39
Reassembly .......................................................................................................................... 39
Prepare for reassembly ...................................................................................................... 39
Reassemble the shaft seal ................................................................................................. 39
Reassemble the suction end ball bearings ......................................................................... 40
Reassemble the pump body ............................................................................................... 41
Complete the reassembly for the end suction configuration ............................................... 41
Reassemble the discharge end ball bearings for the radial suction configuration .............. 42
Assembly references ............................................................................................................ 43
Torque values ..................................................................................................................... 43
Gap widths ......................................................................................................................... 43
Nozzle loads ....................................................................................................................... 44
Recommended minimum flows .......................................................................................... 46
Wearing parts and dimensions ........................................................................................... 46
Troubleshooting .................................................................................................................... 48
Alignment troubleshooting .................................................................................................... 48
Operation troubleshooting ..................................................................................................... 48
Parts Listings and Cross-sectional Drawings .................................................................... 53
Recommended spare parts ................................................................................................... 53
Radial suction all-iron cross-sectional ................................................................................... 54
Radial suction all iron with stainless steel impeller cross sectional ....................................... 55
Radial suction stainless steel cross-sectional ....................................................................... 56
End-suction all-iron cross-sectional ...................................................................................... 57
End-suction all-iron with stainless steel impeller cross-sectional .......................................... 58
End-suction stainless steel cross-sectional ........................................................................... 59
Radial suction (counterclockwise rotation) all-iron cross-sectional ....................................... 60
Radial suction (counterclockwise rotation) all-iron with stainless steel impeller cross-
sectional ................................................................................................................................ 61
Radial suction (counterclockwise rotation) stainless steel cross-sectional ........................... 62
2 Model 3355 Installation, Operation, and Maintenance Manual