Contents
4 of 84 Etanorm SYT
5.7 Electrical connection ......................................................................................................................................34
5.7.1 Setting the time relay........................................................................................................................35
5.7.2 Earthing..............................................................................................................................................35
5.7.3 Connecting the motor .......................................................................................................................35
5.8 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 Quench liquid supply.........................................................................................................................37
6.1.3 Priming and venting the pump.........................................................................................................37
6.1.4 Final check..........................................................................................................................................38
6.1.5 Start-up...............................................................................................................................................39
6.1.6 Checking the shaft seal......................................................................................................................40
6.1.7 Shutdown ...........................................................................................................................................40
6.2 Operating limits..............................................................................................................................................41
6.2.1 Ambient temperature........................................................................................................................41
6.2.2 Frequency of starts.............................................................................................................................42
6.2.3 Fluid handled .....................................................................................................................................42
6.2.4 Permissible speed...............................................................................................................................43
6.3 Shutdown/storage/preservation ....................................................................................................................43
6.3.1 Measures to be taken for shutdown ................................................................................................43
6.4 Returning to service .......................................................................................................................................43
7 Servicing/Maintenance........................................................................................................................ 45
7.1 Safety regulations...........................................................................................................................................45
7.2 Servicing/Inspection........................................................................................................................................46
7.2.1 Supervision of operation...................................................................................................................46
7.2.2 Inspection work..................................................................................................................................48
7.2.3 Lubricating the rolling element bearing ..........................................................................................49
7.2.4 Lubricating the plain bearing ...........................................................................................................50
7.3 Drainage/cleaning ..........................................................................................................................................50
7.4 Dismantling the pump set..............................................................................................................................50
7.4.1 General information/Safety regulations...........................................................................................50
7.4.2 Preparing the pump set.....................................................................................................................51
7.4.3 Removing the motor..........................................................................................................................51
7.4.4 Removing the back pull-out unit ......................................................................................................51
7.4.5 Removing the impeller ......................................................................................................................52
7.4.6 Removing the shaft seal ....................................................................................................................52
7.4.7 Removing the plain bearing..............................................................................................................54
7.5 Reassembling the pump set...........................................................................................................................54
7.5.1 General information/Safety regulations...........................................................................................54
7.5.2 Fitting the plain bearing ...................................................................................................................55
7.5.3 Installing the shaft seal......................................................................................................................56
7.5.4 Fitting the impeller............................................................................................................................58
7.5.5 Installing the back pull-out unit .......................................................................................................59
7.5.6 Mounting the motor .........................................................................................................................59
7.6 Tightening torques.........................................................................................................................................59
7.6.1 Tightening torques for the pump.....................................................................................................59
7.6.2 Tightening torques for the pump set ...............................................................................................61
7.7 Spare parts stock.............................................................................................................................................61
7.7.1 Ordering spare parts..........................................................................................................................61
7.7.2 Recommended spare parts stock for 2 years' operation to DIN24296 ..........................................62
7.7.3 Interchangeability of pump components.........................................................................................63
8 Trouble-shooting.................................................................................................................................. 65
9 Related Documents.............................................................................................................................. 67
9.1 Exploded views and lists of components ......................................................................................................67
9.1.1 Etanorm SYT, bearing bracket WS_25_LS.........................................................................................67
9.1.2 Etanorm SYT, Lagerträger WS_25_LS mit Doppelgleitringdichtung ..............................................68