Design and function
Welding task selection
099-005207-EW501
18.05.2017
29
Item Symbol
Description
0
3
Wire feed nipple
4
Capillary tube or plastic liner with support tube, depending on torch equipment
• Extend and lay out the torch hose package.
• Unfasten and tilt the feed roll tensioner. The clamping units will automatically turn upwards.
• Carefully unwind the wire electrode from the wire spool and route through the inlet guide over the rear
drive roll groove into the capillary tube or plastic liner with support tube.
• Press the clamping units downwards and turn the feed roll tensioner back up again.
The wire electrode should now be positioned inside the drive roll groove.
• Set the contact pressure with the adjusting nuts of the pressure unit.
5.1.8.5 Spool brake setting
Figure 5-14
Item Symbol
Description
0
1
Allen screw
Securing the wire spool retainer and adjustment of the spool brake
• Tighten the Allen screw (8 mm) in the clockwise direction to increase the braking effect.
Tighten the spool brake until the wire spool no longer turns when the wire feed motor stops but
without it jamming during operation!
5.2
Welding task selection
5.2.1
M2.20 welding machine control
5.2.1.1 Setting the operating point (welding output)
This control works according to the twin-knob operation principle. To set the operating point, only the wire
speed and the welding voltage need to be set according to the material and the electrode diameter.
Operating
element
Action
Result
Wire speed setting
Welding voltage setting