Design and function
Commissioning
26
099-008232-EW501
26.05.2020
Item Symbol Description
0
6
Collet housing
7
Sealing ring of the back cap
8
Back cap
9
Calliper with round depth measuring rod
10
Electrode setting gauge
• Remove all sealing rings from the torch body (3) and rub sparingly with lubricant VR 500
[1]
. Then in-
sert all sealing rings in the torch body.
• Screw the back cap (8) into the collet housing (6) (note the gap).
• Insert the collet (4) into the collet housing and screw it into the back cap from 0 to 0.5 mm.
• Transfer the dimension “L” to the electrode setting gauge (9) using the calliper
> see 10 chapter
with
round depth measuring rod (10).
• Screw the pre-assembled electrode clamping unit into the torch up to the sealing ring of the collet
housing (5).
• Push the electrode (1) with the blunt side first from the front through the torch body into the collet.
• Push the pre-set electrode setting gauge from the front over the electrode into the torch body.
• Screw the electrode clamping unit into the torch housing up to a gap of 1.5 to 2.0 mm. The tip of the
electrode must touch the screw of the electrode setting gauge all the time during this process.
• Secure the collet housing with one hand and tighten the back cap with the other hand. The gap of 1.5-
2.0 mm from the collet housing to the torch body is retained.
• Ensure the correct gap of the electrode by turning in the collet housing. Remove the electrode setting
gauge from the torch body.
• The electrode must never turn when the torch cap is turned. If necessary, reassemble the electrode
clamping unit.
[1]
5.10 Commissioning
5.10.1 Start of welding
Before starting to weld, the arc has to briefly stabilise.
At this stage, the burning pilot arc is not centred.
Figure 5-19
