8. PREPARING THE WELDER
15
8.4 GAS/NO GAS WELDING PRINCIPLE
For a successful weld joint, the molten metal must be protected from contaminating gases
found in the air. This is either achieved by supplying the torch with gas from a bottle or
setting the machine up for no-gas and using a flux cored filler wire. The flux shield is
produced as the wire melts.
8.5 GAS BOTTLE CONNECTION – FIGS. 6
We recommend the use of a medium capacity gas
bottle for ease of connection.
– Attach a suitable gauge gas hose to the
gas bottle connector
and secure with a
hose clip and attach the other end to a suitable
regulator and gas bottle.
FIG.6
FIG.7
8.6 POLARITY – FIG. 7
The polarity of the torch and earth clamp must be
made correctly to suit the gas setup.
The connectors and terminals can be accessed by
lifting the top cover
.
i Attach the earth clamp connector
to the positive (red) terminal
.
ii Attach the direct (welding torch) connector
to the negative (black) terminal
.
Note:
This configuration is for no-gas (flux cored)
welding. Reverse the torch and earth clamp for gas
welding.
Summary of Contents for MIG100GG
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