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OPERATING THE WELDER (MIG)
1. With the welding current set and the wire trimmed, set the wire feed
control to an intermediate setting.
2. Plug the machine into the power supply and switch on.
3. Cover your face with the welding mask supplied.
4. Approach the work with the torch tip at an angle of about 45
o
and pull the
torch trigger fully.
• As the wire touches the workpiece an arc will be struck.
5. In order to produce a satisfactory weld, the control may be fine tuned as
required. This will come with practice.
•
MIG welding is an acquired skill. It is strongly advised that, if you are not fully
familiar with this type of welding, you practice on a piece of material with
the same characteristics as your workpiece until you are satisfied with the
result and you have set your welder to produce a satisfactory weld.
•
One of the problems experienced with novice welders is the welding wire
sticking to the contact tip. This is as a result of the wire feed speed being
too slow. It is always better therefore to start with too high a speed and
back off slightly to avoid the possibility of the wire welding itself to the tip.
•
The speed of wire delivery will increase automatically as the current is
increased.
•
Listen to the sound made. An irregular crackling sound denotes too high a
wire speed. Decrease the voltage/speed until a regular, strong buzzing
sound is heard.
WELDING TECHNIQUE
•
Try to maintain the tip of the nozzle at an angle of approx 45
o
and at a
constant distance of approx 5-7mm from the workpiece.
•
Try to maintain a constant speed of movement with the torch.
•
DO NOT
weld in windy conditions or in an area where ventilation is a
problem, or where air flow fluctuates.
•
ALWAYS
keep the wire and nozzle clean...NEVER use rusted wire.
•
Avoid sharp bends or kinks in the welding hose.
CAUTION: THE DUTY CYCLE MUST BE ADHERED IN ORDER TO PREVENT
THE THERMAL OVERLOAD PROTECTION FROM ACTIVATING
Summary of Contents for 6015601
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