135
134
Operation
Operation
Shutdown
Close cylinder valve whenever the regulator is not in use. To shut down for extended periods
(more than 30 minutes).
1. Close cylinder or upstream valve tightly.
2. Open downstream equipment valves to drain the lines. Bleed gas into a well ventilated
area and away from any ignition source.
3. After gas is drained completely, disengage adjusting screw and close downstream
equipment valves.
4. Before transporting cylinders that are not secured on a cart designed for such purposes,
remove regulators.
2.11 Set-up MIG (GMAW) Welding With Gas Shielded MIG Wire
When using a non shielded wire, you need to have an external gas source attached to the
unit. For most Non Shielded Wire, connect the Work Lead to the negative - terminal and
connect the MIG Gun polarity lead to the po terminal. If in doubt, consult the MIG
electrode wire manufacturer.
1. Turn the Main ON/OFF switch OFF (located on the rear panel).
2. Check that the MIG wire size, contact tip, MIG Gun liner and drive roll groove are all the
same size before fitting the MIG wire into the Power Source.
3. Connect the MIG Gun Polarity Lead to the positive welding terminal (+). If in doubt, consult
the MIG electrode wire manufacturer. Welding current flows from the Power Source via
heavy duty bayonet type terminals. It is essential, however, that the male plug is inserted
and turned securely to achieve a sound electrical connection.
4. Fit the MIG wire spool and MIG Gun to the machine.
5. Connect the work lead to the negative welding terminal (-). If in doubt, consult the MIG
electrode wire manufacturer. Welding current flows from the Power Source via heavy
duty bayonet type terminals. It is essential, however, that the male plug is inserted and
turned securely to achieve a sound electrical connection.
Ensure that the gas cylinder is
secured to a building pillar, wall
bracket or otherwise securely
fixed in an upright position.
power supply
(Ar./GAS(TIG/WIG))
MIG torch
MIG
SERIES
EQUIPMENT
MIG SERIES
EQUIPMENT
6. Fit the welding grade shielding gas regulator/ ow gauge to the shielding gas cylinder then
connect the shielding gas hose from the rear of machine to the regulator/ow gauge
outlet.
7. Turn the Main ON/OFF switch ON (located on the rear panel).
8. Select MIG mode with the process selection control.
9. Remove the MIG Gun nozzle and contact tip.
10. Depress MIG Gun trigger to feed the MIG wire out through the MIG Gun gas diffuser then
fit the contact tip on the MIG wire and securely fasten it to the MIG Gun then fit the
nozzle in place.
11. Refer to the Weld Guide located on the inside of the wire feed compartment door for further
information on Voltage/Wirespeed settings.
Before connecting the work clamp to the work make sure the mains power supply is switched
OFF.
WARNING
CAUTION
Loose welding terminal connections can cause overheating and result in the male plug being
fused in the terminal.
Depending on the type of wire you will be using the MIG Gun polarity may need to be switched.
Follow the wire manufacturers recommendation.
2.12 Set-up for MIG (FCAW) Welding with Gasless MIG Wire
When using a gasless flux cored wire, you do not need to have an external gas source attached
to the unit. For most Self Shielded Flux Cored Wire, connect the Work Lead to the positive
+ terminal and connect the MIG Torch polarity lead to MIG torch connector. If in doubt,
consult the Flux Cored electrode wire manufacturer.
NOTE
power supply
MIG torch
Secure the welding grade shielding gas cylinder in an upright position by chaining it to a
suitable stationary support to prevent falling or tipping.
Remove any packaging material prior to use. DO NOT block the air vents at the front or rear
of the Welding Power Source.
