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4.0 Installation
Installation for MIG/MAG process
DCEP
4.1
Installation for MIG/MAG process
1. Connect the gas hose to the regulator and the
rear of the machine. Select correct shielding gas
for the application.
2. Insert the work return lead connection into the
front panel.
3. Select correct welding wire for application.
Fit the wire spool to the machine.
4. Select the appropriate feed roller to suit the
wire being used.
5. Loosen the wire feed tension screws and insert
the wire. Re fit and tension rollers ensuring the
wire is gripped sufficiently so as not to slip but
avoid over tightening as this can affect feed
quality and cause wire feed components to
wear rapidly.
6. Fit and tighten the torch on the output
connection. Ensure correct torch liner and
contact tip are selected.
Polarity change for MIG/MAG process
DCEN
7. Select the correct polarity for the type of
wire used as indicated on the consumable
packaging. This is achieved by swapping the
lead on the front of the machine (A). For most
solid wires the terminal should be set as torch
positive (DCEP). Therefore the work return lead
should be connected to the negative terminal.
8. For torch negative (DCEN), the opposite to point
7 with the work return lead coupled to the
positive terminal.
IMPORTANT
Please ensure that all power to machine is
turned off during installation process and
when changing torches/leads.
13
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