KSB CHTRa, Installation & Operating Manual

Page: 5 / 116

Contents
5 of 116
CHTRa
6.5.1 Safety instructions for operation ...................................................................................................... 62
6.6 Operating limits.............................................................................................................................................. 64
6.6.1
Frequency of starts............................................................................................................................. 64
6.6.2 Ambient temperature........................................................................................................................ 65
6.6.3 Fluid handled ..................................................................................................................................... 66
6.7 Measures to be taken for shutdown ............................................................................................................. 67
6.7.1
Shutdown with the pump set remaining ready for operation ....................................................... 67
6.7.2 Shutdown for maintenance of the pump set or prolonged standstill ........................................... 68
6.8 Work after shutdown..................................................................................................................................... 69
6.8.1
Work after shutdown with the pump set remaining ready for operation .................................... 69
6.8.2 Work after shutdown for standstill - Pump not ready for operation............................................. 69
6.8.3 Work after shutdown for maintenance ........................................................................................... 70
6.9 Preservation for standstill .............................................................................................................................. 70
6.10 Returning to service ...................................................................................................................................... 71
7 Servicing/Maintenance ........................................................................................................................ 73
7.1 Supervision...................................................................................................................................................... 73
7.1.1
Supervision plan................................................................................................................................. 74
7.2 Maintenance ................................................................................................................................................... 75
7.2.1
General instructions for maintenance .............................................................................................. 75
7.2.2 Servicing plan ..................................................................................................................................... 77
7.2.3 Maintenance work............................................................................................................................. 78
7.3 Dismantling the pump ................................................................................................................................... 80
7.3.1
General information/safety regulations ........................................................................................... 80
7.3.2 Prerequisites for dismantling ............................................................................................................ 81
7.3.3 Dismantling guards............................................................................................................................ 81
7.3.4 Dismantling the coupling .................................................................................................................. 82
7.3.5 Removing the pump from the system (if necessary)........................................................................ 84
7.3.6 Preparing the mechanical seal for dismantling ............................................................................... 85
7.3.7 Dismantling the bearings .................................................................................................................. 85
7.3.8 Removing the mechanical seal.......................................................................................................... 87
7.3.9 Removing the rotor ........................................................................................................................... 87
7.3.10 Dismantling the rotor ........................................................................................................................ 88
7.3.11 Removing the impellers from the rotor ........................................................................................... 88
7.3.12 Removing the impeller wear ring ..................................................................................................... 90
7.4 Reassembling the pump................................................................................................................................. 90
7.4.1
General information/Safety regulations........................................................................................... 90
7.4.2 Installing the impeller wear ring ...................................................................................................... 91
7.4.3 Installing the impellers on the rotor................................................................................................. 92
7.4.4 Installing the rotor............................................................................................................................. 93
7.4.5 Fitting the rotor ................................................................................................................................. 93
7.4.6 Preparing the casing gasket .............................................................................................................. 93
7.4.7 Fitting the upper half of the pump casing....................................................................................... 94
7.4.8 Installing the mechanical seal ........................................................................................................... 95
7.4.9 Fitting the bearings ........................................................................................................................... 95
7.4.10 Securing the mechanical seal in place .............................................................................................. 97
7.4.11 Final assembly .................................................................................................................................... 98
7.5 Spare parts stock............................................................................................................................................. 98
7.5.1
Ordering spare parts.......................................................................................................................... 98
7.5.2 Storing spare parts............................................................................................................................. 98
7.5.3 Recommended spare parts stock for two years' operation............................................................. 98
8 Trouble-shooting.................................................................................................................................. 99
9 EU Declaration of Conformity ........................................................................................................... 102
10 Related Documents ............................................................................................................................ 103
10.2.5 Permissible vibrations on bearing housings ................................................................................... 108
Index ................................................................................................................................................... 113