Xylem G&L A-C 8300 Series Instruction Manual page 4

Table of Contents
6 Maintenance..............................................................................................................................27
6.1 Maintenance schedule...................................................................................................... 27
6.2 Flood-damaged pumps.................................................................................................... 28
6.3 Bearing maintenance........................................................................................................ 28
6.4 Shaft-seal maintenance..................................................................................................... 29
6.5 Cleaning without dismantling the pump........................................................................ 29
6.6 Disassembly........................................................................................................................30
6.7 Pre-assembly inspections................................................................................................. 33
6.8 Dimensions......................................................................................................................... 34
6.9 Reassembly.........................................................................................................................34
7 Troubleshooting....................................................................................................................... 44
7.1 Operation troubleshooting.............................................................................................. 44
8 Product warranty...................................................................................................................... 48
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6.3.1 Regrease the grease-lubricated bearings............................................................... 28
6.3.2 Lubricating grease requirements............................................................................. 29
6.4.1 Mechanical seal maintenance................................................................................... 29
6.6.1 Disassembly precautions........................................................................................... 30
6.6.2 Drain the pump........................................................................................................... 30
6.6.3 Remove the hex coupling guard.............................................................................. 30
6.6.4 Replace the mechanical seals and bearings without removing the upper
half of the casing.............................................................................................................. 31
6.7.1 Replacement guidelines............................................................................................ 33
6.7.2 Shaft inspection...........................................................................................................33
6.9.1 Assembly of the mechanical seals and bearings without removing the
upper half of the casing.................................................................................................. 34
6.9.2 Reassembly of the pump when it is required to remove the rotating element.. 36
6.9.3 Install the hex coupling guard...................................................................................41
6.9.4 Assembly references.................................................................................................. 42
G&L Pumps Series A-C 8300 Base Mounted Centrifugal Pump INSTRUCTION MANUAL