
Contents
4 of 122 Magnochem
5.6 Special measures for pumping fluids with temperatures exceeding the temperature class of the system...
32
5.6.1 Inerting the containment shroud .....................................................................................................33
5.7 Checking the coupling alignment .................................................................................................................33
5.8 Aligning the pump and motor ......................................................................................................................35
5.8.1 Motors with adjusting screw.............................................................................................................36
5.8.2 Motors without adjusting screw .......................................................................................................36
5.9 Electrical connection ......................................................................................................................................37
5.9.1 Earthing..............................................................................................................................................39
5.9.2 Connecting the motor .......................................................................................................................39
5.10 Checking the direction of rotation................................................................................................................39
6 Commissioning/Start-up/Shutdown................................................................................................... 41
6.1 Commissioning/Start-up.................................................................................................................................41
6.1.1 Prerequisites for commissioning/start-up .........................................................................................41
6.1.2 Filling in the lubricant .......................................................................................................................41
6.1.3 Priming and venting the pump.........................................................................................................43
6.1.4 Final check..........................................................................................................................................45
6.1.5 Cooling water supply of heat exchanger (for dead-end configuration only)................................45
6.1.6 Heating...............................................................................................................................................45
6.1.7 Heating up the pump (set) and keeping it warm ............................................................................46
6.1.8 Start-up...............................................................................................................................................47
6.1.9 Shutdown ...........................................................................................................................................47
6.2 Operating limits..............................................................................................................................................48
6.2.1 Ambient temperature........................................................................................................................48
6.2.2 Frequency of starts.............................................................................................................................49
6.2.3 Fluid handled .....................................................................................................................................49
6.2.4 Leakage barrier (optional) ................................................................................................................50
6.3 Shutdown/storage/preservation ....................................................................................................................52
6.3.1 Measures to be taken for shutdown ................................................................................................52
6.4 Returning to service .......................................................................................................................................52
7 Servicing/Maintenance........................................................................................................................ 54
7.1 Safety regulations...........................................................................................................................................54
7.2 Servicing/Inspection........................................................................................................................................55
7.2.1 Supervision of operation...................................................................................................................55
7.2.2 Inspection work..................................................................................................................................58
7.2.3 Lubrication and lubricant change at rolling element bearings ......................................................61
7.3 Drainage/cleaning ..........................................................................................................................................63
7.4 Dismantling the pump set..............................................................................................................................64
7.4.1 General information/Safety regulations...........................................................................................64
7.4.2 Preparing the pump set.....................................................................................................................65
7.4.3 Removing the motor..........................................................................................................................65
7.4.4 Removing the back pull-out unit ......................................................................................................65
7.4.5 Dismantling the back pull-out unit ..................................................................................................66
7.5 Reassembling the pump set...........................................................................................................................74
7.5.1 General information/Safety regulations...........................................................................................74
7.5.2 Fitting the plain bearings..................................................................................................................76
7.5.3 Fitting the impeller............................................................................................................................79
7.5.4 Fitting the containment shroud........................................................................................................80
7.5.5 Fitting the bearing bracket lantern ..................................................................................................82
7.5.6 Fitting the rolling element bearings.................................................................................................84
7.5.7 Fitting the shaft seal..........................................................................................................................85
7.5.8 Mounting the outer rotor on the drive shaft ..................................................................................89
7.5.9 Fitting the bearing bracket with the outer rotor ............................................................................90
7.5.10 Run-out check ....................................................................................................................................90
7.5.11 Installing the back pull-out unit .......................................................................................................91
7.5.12 Mounting the motor .........................................................................................................................92
7.6 Tightening torques.........................................................................................................................................92
7.7 Spare parts stock.............................................................................................................................................93