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OPERATING THE WELDER

PREPARING THE WORKPIECE

The area being welded should be perfectly clean. Any coating, plating or corrosion

must be removed, otherwise a good weld will be impossible to achieve.

Attach the earth clamp to the workpiece as close to the point of weld as possible,

without it being intrusive.

OPERATION

1. The table below is displayed on the welder control panel. Adjust the Welding

Voltage and Wire Speed controls according to the task.

2. Plug the machine into the mains supply and switch on.

3. With the welding current set and the wire trimmed, set the wire feed control to an

intermediate setting.

4. Cover your face with a welding mask or welding helmet.

• This is essential.

5. Lower the torch to the workpiece with one hand and approach the work with the

torch tip at an angle of about 35o and pull the trigger fully.

• As the wire touches the workpiece an arc will be struck.

6. In order to produce a satisfactory weld, the controls may be fine tuned as

required. This will come with practice.

NOTE: 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 fine tuned your welder to

produce a satisfactory weld.

NOTE: 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

CAUTION: THE DUTY CYCLE MUST BE ADHERED IN ORDER TO PREVENT

THE THERMAL OVERLOAD PROTECTION FROM ACTIVATING

Workpiece thickness

-/- mm

1

2

3

4

Output voltage control

0.9

A-B

B-F

D-J

I-J

Wire Speed control

0-1

1-4

3-9

7-9