
Contents
4 of 154 Amacan P
6 Commissioning/Start-up/Shutdown................................................................................................... 46
6.1 Commissioning/start-up .................................................................................................................................46
6.1.1 Prerequisites for commissioning/start-up ........................................................................................ 46
6.1.2 Start-up.............................................................................................................................................. 47
6.2 Operating limits..............................................................................................................................................47
6.2.1 Operation on the power supply mains............................................................................................ 47
6.2.2 Frequency of starts............................................................................................................................ 48
6.2.3 Operation on a frequency inverter.................................................................................................. 48
6.2.4 Fluid handled .................................................................................................................................... 48
6.3 Shutdown/storage/preservation ....................................................................................................................50
6.3.1 Shutdown .......................................................................................................................................... 50
6.3.2 Measures to be taken for shutdown................................................................................................ 50
6.4 Returning to service .......................................................................................................................................51
7 Servicing/Maintenance........................................................................................................................ 52
7.1 Safety regulations...........................................................................................................................................52
7.2 Servicing/inspection........................................................................................................................................54
7.2.1 Inspection work................................................................................................................................. 55
7.3 Removing the pump set.................................................................................................................................56
7.3.1 Removing the pump set ................................................................................................................... 56
7.3.2 Drainage/cleaning............................................................................................................................. 58
7.3.3 Checking the cable bundle............................................................................................................... 58
7.3.4 Checking the ground conductor ...................................................................................................... 58
7.3.5 Checking the mechanical seal leakage ............................................................................................ 59
7.3.6 Visually inspecting for corrosion...................................................................................................... 60
7.4 Lubrication and lubricant change .................................................................................................................60
7.4.1 Lubricating the mechanical seal....................................................................................................... 60
7.4.2 Lubricating the rolling element bearings........................................................................................ 62
7.5 Dismantling the pump set..............................................................................................................................64
7.5.1 General information/Safety regulations.......................................................................................... 64
7.5.2 Preparing the pump set.................................................................................................................... 65
7.5.3 Removing the bellmouth.................................................................................................................. 65
7.5.4 Removing the impeller ..................................................................................................................... 66
7.5.5 Removing the mechanical seal......................................................................................................... 66
7.5.6 Dismantling the motor section......................................................................................................... 69
7.6 Reassembling the pump set...........................................................................................................................71
7.6.1 General information/Safety regulations.......................................................................................... 71
7.6.2 Fitting the replacement cable gland................................................................................................ 73
7.6.3 Fitting the motor housing cover ...................................................................................................... 74
7.6.4 Installing the mechanical seal .......................................................................................................... 76
7.6.5 Fitting the impeller ........................................................................................................................... 80
7.6.6 Fitting the bellmouth ....................................................................................................................... 81
7.6.7 Leak testing ....................................................................................................................................... 83
7.7 Checking the connection of power supply and motor ................................................................................84
7.8 Tightening torques.........................................................................................................................................85
7.9 Spare parts stock.............................................................................................................................................86
7.9.1 Ordering spare parts......................................................................................................................... 86
7.9.2 Recommended spare parts stock for 2 years' operation to DIN 24296.......................................... 86
8 Trouble-shooting.................................................................................................................................. 87
9 Related Documents.............................................................................................................................. 89
9.1 General assembly drawing.............................................................................................................................89
9.1.1 Special features ................................................................................................................................. 97
9.2 Cable bundle...................................................................................................................................................98
9.3 Wiring diagrams ...........................................................................................................................................100
9.3.1 Wiring diagram for the power cable 700-470…1500-1060.......................................................... 100
9.3.2 Wiring diagram for the power cable 1600-1060........................................................................... 101
9.3.3 Wiring diagrams for the sensors .................................................................................................... 102
9.4 Flamepaths on explosion-proof motors......................................................................................................106