
Table of contents
1 About this document ..................................................... 3
1.1 General information .......................................................3
1.2 Associated documents ..................................................3
1.3 Target groups ................................................................3
1.4 Symbols.........................................................................3
1.4.1 Danger levels ....................................................3
1.4.2 Danger signs.....................................................4
1.4.3 Symbols in this document .................................4
2 Safety .............................................................................. 5
2.1 Proper use .....................................................................5
2.2 Foreseeable misuse ......................................................5
2.3 Obligations of the operator-owner .................................5
2.4 Safety instructions .........................................................5
2.4.1 Fundamental safety instructions .......................5
3 Identification................................................................... 6
3.1 Type code......................................................................6
3.2 Rating plate ...................................................................6
4 Technical data ................................................................ 7
4.1 Operating limits..............................................................7
4.2 Limit values for tank installation.....................................8
4.3 Required NPSH values..................................................9
4.4 Sound pressure level.....................................................9
4.5 Weights..........................................................................9
5 Function description.................................................... 10
5.1 Pump structure ............................................................10
5.2 Functional principle......................................................10
5.3 Overflow valve .............................................................11
6 Transportation, storage............................................... 12
6.1 Dangers during transportation .....................................12
6.2 Dangers during storage ...............................................12
6.3 Unpacking and checking the state of delivery .............12
6.4 Transporting the pump/pump unit................................12
6.5 Storing the pump .........................................................13
7 Preservation ................................................................. 14
7.1 Preservation table........................................................14
7.2 Preserving the inner surfaces......................................14
7.3 Preserving the outer surfaces......................................14
7.4 Removing the preservation..........................................14
8 Installation, removal .................................................... 15
8.1 Dangers during installation ..........................................15
8.2 Dangers during removal ..............................................15
8.3 Installing the pump ......................................................15
8.4 Removing the pump ....................................................17
9 Connection ................................................................... 18
9.1 Dangers during connection work .................................18
9.2 Connecting the pump to the pipe system ....................18
9.3 Insulating the pump .....................................................19
9.4 Assembling the pump and motor.................................19
9.5 Connecting the pump unit to the power supply ...........20
10 Operation ...................................................................... 20
10.1 Dangers during operation ............................................20
10.2 Commissioning ............................................................20
10.2.1 Cleaning the pipe system................................20
10.2.2 Filling the pump ...............................................21
10.2.3 Checking the direction of rotation ....................21
10.2.4 Commissioning the pump ................................22
10.3 During operation ..........................................................23
10.3.1 Checking the operating pressure.....................23
10.3.2 Monitoring filters and/or strainers ....................24
10.3.3 Adjusting the overflow valve ............................24
10.3.4 Switching off the pump unit .............................25
10.4 Decommissioning.........................................................25
10.4.1 Decommissioning the pump ............................25
10.5 Recommissioning.........................................................26
10.5.1 Recommissioning the pump ............................26
11 Maintenance...................................................................26
11.1 Dangers during maintenance.......................................26
11.2 Required maintenance.................................................26
11.3 Ball bearing (inner bearing)..........................................26
11.4 Maintaining the pump...................................................27
12 Servicing ........................................................................27
12.1 Dangers during servicing .............................................27
12.2 Wear ............................................................................27
12.2.1 Signs of wear...................................................27
12.2.2 Radial shaft seal ..............................................28
12.3 Replacing the coupling.................................................28
12.3.1 Removing the coupling ....................................28
12.3.2 Installing the coupling ......................................29
12.4 Replacing the radial shaft seal.....................................30
12.4.1 Removing the radial shaft seal ........................30
12.4.2 Installing the radial shaft seal ..........................30
12.5 Replacing the ball bearing ...........................................31
12.5.1 Removing the ball bearing...............................31
12.5.2 Installing the ball bearing.................................31
13 Disposal..........................................................................32
13.1 Dismantling and disposing of the pump ......................32
14 Troubleshooting ............................................................33
14.1 Possible faults..............................................................33
14.2 Troubleshooting ...........................................................33
15 Spare parts.....................................................................36
15.1 Overview ......................................................................36
15.2 Maintenance kits ..........................................................36
15.2.1 Maintenance kit radial shaft seal standard ......36
15.3 Repair kits ....................................................................37
15.3.1 Repair kit, overflow valve.................................37
15.4 Tool sets ......................................................................37
15.4.1 Tool set, radial shaft seal.................................37
16 Appendix ........................................................................38
16.1 Tightening torques for screws with metric screw threads
with and without wedge lock washers..........................38
16.2 Tightening torques for screw plugs with thread meas-
ured in inches and elastomer seal ...............................38
16.3 Contents of the Declaration of Conformity ...................39
2OIC 01en-GB Edition 2019-11 Operating instructions