HEAD SHIELD
The head shield must always be used when welding. The head shield protects your eyes from
the dangerous UV radiation and heat emitted from the arc.
WELDING
Proceed as follows after connecting the electrical connections as described:
- Clamp the ground cable to the workpiece. Ensure that a good electrical connection exists
between the workpiece and the ground clamp.
- The welding point on the workpiece should be free of rust and paint.
- The optimum welding current depends on the diameter of the welding wire, the strength of
the material being welded & the weld penetration required
- Switch the machine on.
- Holding the face shield in front of your face, place the torch nozzle on the section of the
workpiece to be welded and pull the torch switch to prime the arc.
- Once the arc is primed the welder feeds wire into the weld pool. Once the nugget is big enough,
run the torch along the work area. The distance between the torch nozzle and the workpiece
should be kept as small as possible (not bigger than 10mm). If necessary, lightly swing the
torch to make the welding pool bigger.
- For beginners the most difficult part of welding will be successfully priming the arc as it can
be difficult to correctly set the welding current and wire feed speed.
- You can find the best setting for the welding currect and wire feed speed on a test workpiece.
- A well primed arc will have a soft, constant buzz / tone. The weld penetration should be as
deep as possible to prevent the welding pool falling through the workpiece.
- If you hear rough or hard crackling, lower the wire feed speed or increase the welding current.
If the wire feed speed is too high and/or the welding current too low, the welding wire will
not melt properly and will constantly dip into the welding pool all the way to the workpiece.
- A dull thud with a flickering arc is a sign of too little wire beind fed through. Increase the wire
feed speed or lower the welding current. If the welding current is too high the welding wire
will melt before it reaches the welding pool. The result is a drop formation on the welding
wire as well as a fluttering arc.
- The slag may only be removed once the joint has cooled completely. If you wish to continue
welding a joint after taking a break, the slag at the end of the joint must be removed first.
Prime the arc in the joint and melt the electrode at the point where the two joints meet.
- Caution! Always use pliers or a similar tool to remove used, hot electrodes or to move hot
welded workpieces. Ensure that the electrode holder is placed on an insulated surface when
taking a break. Always turn off the welder after finishing work and during breaks, and always
disconnect the machine from the mains.
97