Design and function
Wear part replacement
099-008232-EW501
26.05.2020
23
• Remove the electrode (1) by holding the knurled ring of the collet housing (3) with one hand and turn-
ing the knurled back cap (4) anti-clockwise approx. 2 turns with the other hand.
• The back cap remains with the remaining thread in the collet housing and should not be completely
unscrewed to change the electrode.
• You can now pull the electrode out of the torch body (2).
• Push the new or a reground electrode with the blunt side first through the torch body into the collet and
screw the back cap a little further into the collet housing. This pulls the collet into the collet housing
and the electrode is held by the collet to such an extent that it can no longer slide out of the collet by
itself. However, it must still be possible to move the electrode by hand for precise positioning.
For removal, the electrode clamping unit (5) is completely unscrewed from the torch with the back cap de-
tached. Then the back cap is unscrewed from the collet housing and the collet is pushed forward out
of the housing. This is only necessary in case of maintenance.
5.9.3.3 Setting the electrode gap
Figure 5-16
Item Symbol Description
0
1
Electrode setting gauge
2
Electrode
3
Collet chuck
4
Torch body
5
Collet housing
6
Back cap
7
Clamping module
• Push the electrode setting gauge (1) over the electrode (2) into the torch body (4).
• Hold the adjusting ring of the collet housing (5) lightly and tighten the back cap (6) only so far that the
electrode can no longer be moved from its position.
• Do not screw the collet housing up to the stop into the torch body.
• It must still be possible to turn the collet housing in both directions using its grip ring. After the correct
clamping of the electrode, the clamping module should have an adjustment range of approx. ± 1.0 mm
in both directions. This enables a precise adaptation of the electrode’s position to the respective
welding task.
5.9.3.4 Electrode setting gauge (basic setting - dimension “L”)
Figure 5-17
The electrode setting gauge is adjustable using a calliper with round depth measuring rod. The
factory-set electrode setting gauge must be adjusted to the different electrode lengths.
