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▶ The surface and the ring produced around the prepared area must be free of all traces of coating
material and/or contaminant. Remove all residues and contaminants caused by the surfacing
operation.
Comply with the operating instructions of the drill / driver.
As a general rule, the tool-specific operating instructions of the cordless drill / drivers apply. In this
special application for surface preparation with the surfacing tools in the FX 3-A system, the drill /
driver can also be held with the other hand at the back of the drill / driver.
5.7
Connecting ground clamp
▶ Connect the ground clamp to an uninsulated point on the workpiece or to a stud welded beforehand.
Comply with the requirement for minimum spacing between the stud to be welded and the ground clamp.
When welding on walls, always position the ground clamp below the weld position.
Technical data
Minimum distance between the stud to be welded and the
ground clamp
If the workpiece is coated or offers no uninsulated point for connection of the ground clamp, use
the magnetic foot on a surface prepared beforehand. → page 12
5.7.1
Positioning magnetic foot
Position the magnetic foot for the first stud only. For all subsequent studs, connect the ground clamp to a
stud welded on beforehand.
1. To create an uninsulated point on the workpiece, prepare the workpiece in the same way as for welding
a stud. → page 11
Ideally, this means preparing the workpiece at a point where a stud is going to be welded into
place later on.
2. Position the magnetic foot in such a way that the contact pin touches the center of the prepared area.
3. Activate the magnetic foot by turning the grip. Check that it holds securely.
4. Position the ground clamp on the contact pin of the magnetic foot.
Deactivate the magnetic foot before removing it.
5. If the following conditions are met, also take this action:
Conditions: Working at height
▶ As drop arrester for the magnetic foot, use only the Hilti tool tether #2261970.
▶ Use a carabiner engaged in the eye of the magnetic foot to secure the tool tether as shown in the
illustration. Check that it holds securely.
▶ Secure the second carabiner to a load-bearing structure. Check that the carabiner holds securely.
Comply with the operating instructions of the Hilti tool tether.
6
Operation
6.1
Switching on / off
1. To switch the welding machine on, press the on/off button and hold it down for at least 2 seconds.
2. To switch the welding machine off, press the on/off button and hold it down for at least 2 seconds.
▶ All indicators on the welding machine go out.
12
English
9
10
10 cm
(4 in)
2302409
*2302409*
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