EWM PMW 20 Operating Instructions Manual page 3

1 Contents
1 Contents ........................................................................................................................................ 3
2 For your safety ............................................................................................................................. 5
2.1 Notes on using these operating instructions ........................................................................ 5
2.2 Explanation of icons ............................................................................................................. 6
2.3 Safety instructions ................................................................................................................ 7
2.4 Transport and installation ................................................................................................... 10
3 Intended use ............................................................................................................................... 12
3.1 Applications ........................................................................................................................ 12
3.2 Documents which also apply .............................................................................................. 12
3.2.1
3.2.2
3.2.3
3.2.4
4 Machine description – quick overview ..................................................................................... 14
4.1 PMW 20 ............................................................................................................................. 14
5 Design and function ................................................................................................................... 15
5.1 Scope of delivery................................................................................................................ 15
5.2 Transport and installation ................................................................................................... 16
5.2.1
5.3 Functional characteristics ................................................................................................... 16
5.3.1
5.3.2
5.4 Welding torch connection ................................................................................................... 19
5.5 Ultraviolet radiation ............................................................................................................ 20
5.6 Gas supply (shielding and plasma gas) ............................................................................. 20
5.6.1
5.6.2
5.6.3
5.6.4
5.7 Tables of current carrying capacity .................................................................................... 22
5.7.1
5.8 Wear part replacement ....................................................................................................... 23
5.8.1
5.8.2
5.8.3
6 Commissioning .......................................................................................................................... 27
6.1 Start of welding .................................................................................................................. 27
6.1.1
7 Maintenance, care and disposal ............................................................................................... 28
7.1 General .............................................................................................................................. 28
7.2 Maintenance work, intervals ............................................................................................... 28
7.2.1
7.2.2
7.2.3
7.3 Disposing of equipment ...................................................................................................... 29
8 Rectifying faults ......................................................................................................................... 30
8.1 Checklist for rectifying faults............................................................................................... 30
8.2 Vent coolant circuit ............................................................................................................. 32
9 Technical data ............................................................................................................................ 33
9.1 PMW 20 ............................................................................................................................. 33
9.1.1
099-002897-EW501
22.06.2023
Warranty ............................................................................................................. 12
Declaration of Conformity ................................................................................... 12
Service documents (spare parts) ........................................................................ 12
Part of the complete documentation ................................................................... 13
Ambient conditions .............................................................................................. 16
Procedure ........................................................................................................... 16
Welding torch cooling system ............................................................................. 17
5.3.2.1 Permitted torch coolant ........................................................................ 18
5.3.2.2 Plasma torch - cooling circuit ............................................................... 18
Hydrogen ............................................................................................................ 20
Plasma gas ......................................................................................................... 21
Shielding gas ...................................................................................................... 22
Forming gas ........................................................................................................ 22
Guide values for various setting parameters ....................................................... 23
Deinstallation/Installation .................................................................................... 23
Changing the contact tip ..................................................................................... 24
Electrode change ................................................................................................ 24
5.8.3.1 Regrinding the electrode ...................................................................... 25
5.8.3.2 Setting the electrode gap ..................................................................... 26
Double arc .......................................................................................................... 27
Daily maintenance tasks ..................................................................................... 28
Monthly maintenance tasks ................................................................................ 29
Annual test (inspection and testing during operation) ......................................... 29
Dimensions ......................................................................................................... 33
Notes on using these operating instructions
Contents
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