Johnson Pump TG GS2-25 - Page 5

5
A.0500.501 – IM-TGGS/05.01 EN (03/2013)
3.21 Maintenance instructions ...............................................................................43
3.21.1 General .............................................................................................................43
3.21.2 Preparation ....................................................................................................... 43
3.21.2.1 Surroundings (on site) ..............................................................................43
3.21.2.2 Tools .............................................................................................................. 43
3.21.2.3 Shut-down ...................................................................................................43
3.21.2.4 Motor safety ................................................................................................ 43
3.21.2.5 Conservation ............................................................................................... 43
3.21.2.6 External cleaning ........................................................................................ 44
3.21.2.7 Electrical installation .................................................................................. 44
3.21.2.8 Draining of fluid .........................................................................................44
3.21.2.9 Fluid circuits ................................................................................................ 44
3.21.3 Specific components ..................................................................................... 45
3.21.3.1 Nuts and bolts ............................................................................................45
3.21.3.2 Plastic or rubber components .................................................................45
3.21.3.3 Flat gaskets .................................................................................................45
3.21.3.4 Filter or suction strainer ............................................................................ 45
3.21.3.5 Anti-friction bearings .................................................................................45
3.21.3.6 Sleeve bearings ..........................................................................................46
3.21.3.7 Shaft seal – Mechanical seal ..................................................................46
3.21.4 Front pull-out ...................................................................................................47
3.21.5 Back pull-out ....................................................................................................47
3.21.6 Clearance adjustment ..................................................................................47
3.21.7 Designation of threaded connections. ....................................................... 48
3.21.7.1 Threaded connection Rp (example Rp 1/2) ........................................ 48
3.21.7.2 Threaded connection G (example G 1/2) ............................................48
4.0 Instructions for assembly and disassembly .............................................. 49
4.1 General ...............................................................................................................49
4.2 Tools .................................................................................................................... 49
4.3 Preparation ........................................................................................................49
4.4 After disassembly ............................................................................................. 49
4.5 Anti-friction bearings ....................................................................................... 50
4.5.1 General .............................................................................................................50
4.5.2 TG GS2-25, TG GS3-32 and TG GS6-40 disassembly .....................50
4.5.3 TG GS2-25, TG GS3-32 and TG GS6-40 assembly ..........................50
4.5.4 TG GS15-50 to TG GS185-125 disassembly .......................................51
4.5.5 TG GS15-50 to TG GS185-125 assembly ............................................51
4.6 Mechanical seal ................................................................................................ 52
4.6.1 General .............................................................................................................52
4.6.2 Preparation ....................................................................................................... 52
4.6.3 Special tools ....................................................................................................52
4.6.4 General instructions during assembly .....................................................52
4.6.5 Assembly of the rotating part ......................................................................52
4.6.6 Assembly of the stationary seat .................................................................53
4.7 Pumps .................................................................................................................53
4.7.1 General .............................................................................................................53
4.7.2 TG GS2-25/TG GS3-32/TG GS6-40 ....................................................53
4.7.3 TG GS15-50/TG GS23-65 .......................................................................54
4.7.4 TG GS58-80/ TG GS86-100/ TG GS 185-125 ..................................55
4.8 Relief valve .........................................................................................................56
4.8.1 Disassembly ....................................................................................................56
4.8.2 Assembly .........................................................................................................56