Design and function
MMA welding
099-002060-EW501
19.10.2015
29
5.7
MMA welding
CAUTION
Risk of being crushed or burnt.
When replacing spent or new stick electrodes
• Switch off machine at the main switch
• Wear appropriate safety gloves
• Use insulated tongs to remove spent stick electrodes or to move welded workpieces and
• Always put the electrode holder down on an insulated surface.
5.7.1
Connecting the electrode holder and workpiece lead
Polarity depends on the instructions from the electrode manufacturer given on the electrode
packaging.
Figure 5-7
Item Symbol
Description
0
1
Electrode holder
2
Connection socket for "+" welding current
Electrode holder or workpiece lead connection
3
Workpiece
4
Connection socket, “-” welding current
Workpiece lead or electrode holder connection
• Insert cable plug of the electrode holder into either the "+" or "-" welding current connection socket and
lock by turning to the right.
• Insert cable plug of the workpiece lead into either the "+" or "-" welding current connection socket and
lock by turning to the right.
