Grundfos SE - Default Chapter; Table of Contents

English (GB) Service instructions
Original service instructions
Table of contents
1. General information ......................................................................5
1.1 Hazard statements........................................................................5
1.2 Notes ................................................................................5
2. General safety instructions .................................................................5
3. Receiving the product .....................................................................7
3.1 Transporting the product ....................................................................7
3.2 Inspecting the product......................................................................8
3.3 Lifting the product ........................................................................8
3.4 Storage...............................................................................8
4. Identification ...........................................................................9
4.1 Nameplate.............................................................................9
4.2 Type key .............................................................................10
5. Design .............................................................................. 11
5.1 Sectional views ......................................................................... 11
5.2 Exploded view .........................................................................16
5.3 Components and material specification ..........................................................18
6. Service tools ..........................................................................19
7. Tightening torques and lubricants ............................................................ 20
8. Electrical connection ....................................................................21
8.1 Wiring diagrams ........................................................................22
8.2 Motor top wiring connections.................................................................24
8.3 Power cable data........................................................................29
8.4 Sensors .............................................................................29
8.5 Thermal switches........................................................................29
8.6 Moisture switches and leakage switches .........................................................29
8.7 Thermistors ...........................................................................29
8.8 IO 113 module .........................................................................30
9. Startup..............................................................................31
10. Maintenance and service ..................................................................32
10.1 Drain leakage chamber on SL pumps ...........................................................32
10.2 Pump overhaul .........................................................................33
10.3 Contaminated pumps .....................................................................33
10.4 Shaft seal inspection .....................................................................33
10.5 Motor liquid check and change ...............................................................34
11. Disassembly ..........................................................................36
11.1 Remove the motor top cover .................................................................36
11.2 Remove power and sensor cables .............................................................37
11.3 Separate the motor from the pump housing........................................................39
11.4 Pump housing disassembly .................................................................40
11.5 Motor disassembly .......................................................................41
12. Assembly ............................................................................ 56
12.1 Stator insertion .........................................................................57
12.2 NDE bearing mount ......................................................................59
12.3 Lower bearing bracket assembly ..............................................................60
12.4 Mounting the lower bearing bracket on the rotor shaft .................................................62
12.5 Bearing cover assembly ...................................................................64
12.6 Centrifugal cup assembly...................................................................65
12.7 Shaft with rotor assembly insertion .............................................................67
12.8 Upper seal housing assembly ................................................................69
12.9 Mounting the assembled upper seal housing .......................................................70
12.10 Mounting the shaft seal ....................................................................71
12.11 Mounting the upper bearing bracket ............................................................72
12.12 Mounting the impeller .....................................................................74
12.13 Pump housing assembly ...................................................................76
12.14 Mounting the motor on the pump housing .........................................................78
12.15 Terminal bracket assembly ..................................................................80
12.16 Motor top internal wiring ...................................................................81
12.17 Cable assembly ........................................................................82
12.18 Mounting the power and sensor cables ..........................................................84
12.19 Motor top cover assembly ..................................................................86
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English (GB)