Product Manual

Page 18 of 47
 Keep cylinders away from welding or electrical circuits.
 Use the proper regulators, gas hoses, and fittings for the specific application.
a. Polarity Changing - When MIG wire is used, shielding gas is required and the polarity
on this unit needs to be electrode positive.
i. Electrode Positive for MIG Welding - The Weld Power Cable (see Figure 8)
should be connected to the positive (+) weld output connection on the front of
the machine. The ground cable would then be connected to the negative (-)
weld output connection.
ii. Electrode Negative for Flux Core Welding - The Weld Power Cable should be
connected to the negative (-) weld output connection on the front of the
machine. The ground cable would then be connected to the positive (+) weld
output connection. Refer to the polarity setting label inside the wire
compartment.
iii. Connect one end of the gas hose to the gas hose connection on the back of
the welder. Use a wrench to snug up the connection.
Reference
Subassembly
1
Gas Bottle Valve
2
Gas Flow Gauge (Set at 20 CFH)
3
Gas Pressure Gauge
4
Regulator
5
Gas Flow Adjuster
6
Gas Hose Connection
7
Gas Cylinder
Figure 6
iv. Connect the other end of the gas hose to the gas hose connection on the
supplied regulator/flow gauge. Use a wrench to snug up the connection.
v. Before installing the regulator, it is good practice to make certain no debris is
in the gas bottle connection. Rotate the bottle so the gas connection is not
pointing toward you or any other person. Turn the valve on the gas bottle
clockwise and quickly close. This quick thrust of gas will clear any debris in
1
7
4
3
2
6
5