Richter MNK-B Series - Manual (Page 2)

Series MNK-B, close-coupled design Page 2
9230-055-en Revision 09
TM 7345 Edition 10/2008
List of Contents
List of Contents 2
Relevant documents 3
1 Technical data 3
1.1 Tightening torques....................................... 4
1.2 Type plate, dry-running, CE and housing
markings...................................................... 4
2 Notes on safety 5
2.1 Intended use................................................ 5
2.2 For the customer/operator........................... 6
2.3 For maintenance ......................................... 6
2.4 Conversion work and production of spare
parts by the customer.................................. 6
2.5 Improper operation ...................................... 6
2.6 Explosion protection .................................... 6
2.6.1 Filling the unit 6
2.6.2 Special operating conditions 7
2.6.3 Chargeable liquids 7
2.6.4 Identification 7
2.6.5 Check of the direction of rotation 7
2.6.6 Mode of operation of the pump 7
2.6.7 Temperature limits 8
2.6.8 Maintenance 9
2.6.9 Electric peripheral equipment 9
3 Transport, storage and disposal 9
3.1 Return consignments .................................. 9
3.2 Disposal....................................................... 9
4 Product description 10
5 Installation 10
5.1 Safety regulations...................................... 10
5.2 Installation of pump/unit ............................ 10
5.3 Alignment of pump / motor ........................ 10
5.4 Piping......................................................... 10
5.4.1 Nominal size 11
5.4.2 Nozzle loads 11
5.4.3 Suction line 11
5.4.4 Supply lines 11
5.4.5 Discharge line 11
5.4.6 Venting and evacuating 11
5.5 Pipe fittings ................................................ 11
5.6 Monitoring facilities.................................... 12
5.7 Drive .......................................................... 12
5.8 Electric connection .................................... 12
6 Commissioning/Shutdown 13
6.1 Initial commissioning..................................13
6.1.1 Filling the pump housing 13
6.1.2 Start-up 13
6.2 Operating limits..........................................13
6.2.1 Abrasive media 13
6.2.2 Min./max. flow rate 13
6.3 Shutdown...................................................13
6.4 Restarting ..................................................14
6.5 Improper operations and their consequences
(examples) .................................................14
7 Maintenance 14
7.1 Screw connections of the housing.............14
7.2 Motor..........................................................14
7.3 Cleaning.....................................................14
7.4 Stand-by pumps.........................................15
7.5 Notes on dismantling .................................15
7.5.1 Protective clothing 15
7.5.2 Magnetic fields 15
7.6 Dismantling ................................................15
7.6.1 Dismantling the slide-in unit 15
7.6.2 Dismantling of drive unit 16
7.7 Notes on assembly ....................................16
7.8 Assembly ...................................................16
7.8.1 Assembly of drive unit 16
7.8.2 Perform trial assembly of plain bearing pedestal
with impeller, inner magnet assembly and plain
bearings
16
7.8.3 Determine thicknesses S
1
and S
2
of the distance
washers 551. 17
7.8.4 Final assembly 17
7.9 Tests ..........................................................17
8 Faults 18
9 Sectional drawing 19
9.1 Legend .......................................................19
9.2 MNK-B close-coupled design ..................20
10 Assembly aids 21
10.1 Boring templates........................................21
10.2 Installation device for plain bearings .........21
10.3 Pull-off device for plain bearing bushes.....21