Set-Up Mig (Gmaw) Welding With Gas Shielded Mig Wire - Vector Welding MIG Serie Mode D'emploi

Operation
5. To protect sensitive down-stream equipment a separate safety device may be necessary
if the regulator is not fitted with a pressure relief device.
Operation
With the regulator connected to cylinder or pipeline, and the adjustment screw/knob fully
disengaged, pressurize as follows:
1. Stand to one side of regulator and slowly open the cylinder valve. If opened quickly, a
sudden pressure surge may damage internal regulator parts.
2. With valves on downstream equipment closed, adjust regulator to approximate working
pressure. It is recommended that testing for leaks at the regulator connection points be
carried out using a suitable leak detection solution or soapy water.
3. Purge air or other unwanted welding grade shielding gas from equipment connected to
the regulator by individually opening then closing the equipment control valves. Complete
purging may take up to ten seconds or more, depending upon the length and size of the
hose being purged.
With the regulator ready for operation, adjust working ow rate as follows:
1. Slowly turn adjusting screw/knob in (clockwise) direction until the outlet gauge indicates
the required ow rate.
NOTE
It may be necessary to re-check the shielding gas regulator ow rate following the first weld
sequence due to back pressure present within shielding gas hose assembly.
2. To reduce ow rate, allow the welding grade shielding gas to discharge from regulator by
opening the down- stream valve. Bleed welding grade shielding gas into a well ventilated
area and away from any ignition source. Turn adjusting screw counterclockwise, until the
required ow rate is indicated on the gauge. Close downstream valve.
3. Adjust regulator pressure adjusting screw to the required ow rate, indicated on gauge dial.
The gas ow rate should be adequate to cover the weld zone to stop weld porosity. Excessive
gas ow rates may cause turbulence and weld porosity.
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.
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MIG SERIES EQUIPMENT
Screw knob
MIG SERIES EQUIPMENT
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.

3.7 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 european Interface (See layout for the control
panel 3.1, item 12). Turn in the In case of doubt to the 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 european Interface. 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.
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.
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.
WARNING
Before connecting the work clamp to the work make sure the mains power supply is switched
OFF.
Secure the welding grade shielding gas cylinder in an upright position by chaining it to a
suitable stationary support to prevent falling or tipping.
Operation
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