Contents
4 of 72
Sewatec (60 Hz)
5.15 Warning values and cut-out values ............................................................................................................... 31
6
Commissioning/Start-up/Shutdown................................................................................................... 33
6.1
Commissioning/start-up ................................................................................................................................. 33
6.1.1
Prerequisites for commissioning/start-up ......................................................................................... 33
6.1.2
Start-up............................................................................................................................................... 33
6.1.3
Shutdown ........................................................................................................................................... 34
6.2
Operating limits.............................................................................................................................................. 34
6.2.1
Maximum operating pressure ........................................................................................................... 35
6.2.2
Frequency of starts............................................................................................................................. 36
6.2.3
Fluid handled ..................................................................................................................................... 36
6.3
Shutdown/storage/preservation .................................................................................................................... 37
6.4
Returning to service after storage................................................................................................................. 37
7
Servicing/Maintenance........................................................................................................................ 38
7.1
Safety regulations........................................................................................................................................... 38
7.2
Maintenance/inspection................................................................................................................................. 39
7.2.1
Supervision of operation ................................................................................................................... 39
7.2.2
Visual inspection through the inspection hole ................................................................................ 39
7.2.3
Lubrication and lubricant change..................................................................................................... 41
7.3
Drainage/disposal ........................................................................................................................................... 43
7.4
Dismantling the pump set.............................................................................................................................. 44
7.4.1
General information/Safety regulations........................................................................................... 44
7.4.2
Preparations for dismantling ............................................................................................................ 44
7.4.3
Separating the pump from the piping ............................................................................................. 45
7.4.4
Removing the back pull-out unit ...................................................................................................... 45
7.4.5
Removing the impeller ...................................................................................................................... 46
7.4.6
Removing the mechanical seals ........................................................................................................ 48
7.4.7
Removing the shaft and rolling element bearings .......................................................................... 49
7.4.8
Removing the wear plate (for D impellers only).............................................................................. 50
7.5
Reassembling the pump set ........................................................................................................................... 50
7.5.1
General information/Safety regulations........................................................................................... 50
7.5.2
Re-installing shaft and rolling element bearings............................................................................. 51
7.5.3
Installing the mechanical seal ........................................................................................................... 51
7.5.4
Fitting the impeller ............................................................................................................................ 55
7.5.5
Installing the back pull-out unit ....................................................................................................... 57
7.5.6
Leak test ............................................................................................................................................. 58
7.5.7
Mounting the motor.......................................................................................................................... 58
7.6
Tightening torques......................................................................................................................................... 59
7.7
Spare parts stock............................................................................................................................................. 59
7.7.1
Ordering spare parts.......................................................................................................................... 59
7.7.2
Recommended spare parts stock for 2 years' operation to DIN 24296........................................... 59
8
Trouble-shooting.................................................................................................................................. 61
9
Related Documents.............................................................................................................................. 63
9.1
General assembly drawing: Sewatec with bearing brackets S01, S02, S03, S04 ......................................... 63
9.2
Detailed views................................................................................................................................................. 64
9.2.1
Impeller types..................................................................................................................................... 64
9.2.2
Inspection hole, bearing brackets S01 to S04................................................................................... 65
9.3
Exploded view: Sewatec with bearing brackets S01, S02, S03, S04 ............................................................. 66
10
EU Declaration of Conformity............................................................................................................. 67
11
Certificate of Decontamination........................................................................................................... 68
Index ..................................................................................................................................................... 69
