Contents
4 of 80
HPK
5.8 Electrical connection ......................................................................................................................................34
5.8.1 Setting the time relay........................................................................................................................35
5.8.2 Earthing..............................................................................................................................................35
5.8.3 Connecting the motor .......................................................................................................................35
5.9 Checking the direction of rotation................................................................................................................36
6 Commissioning/Start-up/Shutdown................................................................................................... 37
6.1 Commissioning/Start-up.................................................................................................................................37
6.1.1 Prerequisites for commissioning/start-up .........................................................................................37
6.1.2 Filling in lubricants.............................................................................................................................37
6.1.3 Shaft seal ............................................................................................................................................38
6.1.4 Priming and venting the pump.........................................................................................................40
6.1.5 Water cooling.....................................................................................................................................40
6.1.6 Cooling of the shaft seal ...................................................................................................................41
6.1.7 Bearing bracket cooling ....................................................................................................................41
6.1.8 Cooling of the heat exchanger .........................................................................................................41
6.1.9 Heating up/keeping warm the pump (set).......................................................................................42
6.1.10 Final check..........................................................................................................................................42
6.1.11 Start-up...............................................................................................................................................42
6.1.12 Checking the shaft seal......................................................................................................................43
6.1.13 Shutdown ...........................................................................................................................................45
6.2 Operating limits..............................................................................................................................................46
6.2.1 Ambient temperature........................................................................................................................46
6.2.2 Frequency of starts.............................................................................................................................46
6.2.3 Fluid handled .....................................................................................................................................47
6.3 Shutdown/storage/preservation ....................................................................................................................48
6.3.1 Measures to be taken for shutdown ................................................................................................48
6.4 Returning to service .......................................................................................................................................48
7 Servicing/Maintenance........................................................................................................................ 50
7.1 Safety regulations...........................................................................................................................................50
7.2 Servicing/Inspection........................................................................................................................................51
7.2.1 Supervision of operation...................................................................................................................51
7.2.2 Inspection work..................................................................................................................................53
7.2.3 Lubrication and lubricant change of rolling element bearings ......................................................54
7.3 Drainage/cleaning ..........................................................................................................................................56
7.4 Dismantling the pump set..............................................................................................................................56
7.4.1 General information/Safety regulations...........................................................................................56
7.4.2 Preparing the pump set.....................................................................................................................57
7.4.3 Removing the motor..........................................................................................................................57
7.4.4 Removing the back pull-out unit ......................................................................................................57
7.4.5 Removing the impeller ......................................................................................................................58
7.4.6 Removing the shaft seal ....................................................................................................................58
7.4.7 Dismantling the bearings ..................................................................................................................58
7.5 Reassembling the pump set...........................................................................................................................59
7.5.1 General information/Safety regulations...........................................................................................59
7.5.2 Installing the bearings.......................................................................................................................60
7.5.3 Fitting the shaft seal..........................................................................................................................61
7.5.4 Fitting the impeller............................................................................................................................63
7.5.5 Fitting the back pull-out unit............................................................................................................64
7.5.6 Mounting the motor .........................................................................................................................64
7.6 Tightening torques.........................................................................................................................................64
7.6.1 Tightening torques for volute casing/bearing bracket....................................................................64
7.6.2 Tightening torques for the impeller nut ..........................................................................................65
7.7 Spare parts stock.............................................................................................................................................65
7.7.1 Ordering spare parts..........................................................................................................................65
7.7.2 Recommended spare parts stock for 2 years' operation to DIN24296 ..........................................65
7.7.3 Interchangeability of pump components.........................................................................................66
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