Jasic MIG 350C, Operator'S Manual

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Operation
Before starting any welding activity ensure that you have
suitable eye protection and protective clothing. Also take
the necessary steps to protect any persons within the
area.
MMA
After connecting the welding leads as detailed you will need
to switch on the machine. The power LED will be lit and the
fan running.
Switch the TIG/MMA/MIG switch to MMA.
Set the amperage on the machine using the MMA current
control knob to a value suitable for the electrode being used.
Please see below a guide to amperages required. Ensure
you check that you have the electrode polarity correct.
TIG
After connecting the welding leads as detailed you will need
to switch on the machine. The power LED will be lit and the
fan running.
Switch the TIG/MMA/MIG switch to TIG.
Set the amperage on the machine using the MMA current
control knob to a value suitable for the electrode being used.
Open the gas valve on the TIG torch and set the required
flow rate
Start the arc by touching the TIG electrode to the work piece
and raising it.
MIG/MAG
Connect the MIG torch leads as detailed above. Ensure that
a suitable inert gas supply is connected.
Switch the power switch on the back panel to “ON”, the
machine is started with the power LED on and the fan
working.
Switch the MMA/MIG switch to MIG mode.
Select pull position if using a remote torch
Open the gas valve of the cylinder, and adjust the gas
regulator to obtain the desired flow rate.
Adjust the “voltage control knob in MIG” and “wire feed
speed control knob in MIG” on the front panel of the
machine to get the correct welding voltage and welding
current.
Operate the torch trigger, and welding can be carried out.
Where required adjust the burn-back time potentiometer
(above the feed unit inside the machine) to get the proper
electrode stick-out.
One second after the arc stops, the gas supply will be cut
o
ff .
Gas less MIG
The operation method is the same to MIG operation except
that there are no gas options.
For welder training please visit our Academy website at
www.wilkinson-welding-academy.com
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Electrode Diameter (mm) Recommended Welding Current (A)
1.0 20~60
1.6 44~84
2.0 60~100
2.5 80~120
3.2 108~148
4.0 140~180
5.0 180~220
6.0 220~260