Miller MigMatic 300, Owner'S Manual

Page: 17 / 72

OM-251958 Page 11
SECTION 4 − INSTALLATION
4-1. Installing Gas Supply
Ref. 148265-B / Ref. 149827-B / Ref. 158697-A
CO
2
Gas
Argon Gas Or Mixed Gas
OR
1
2
3
1
2
3
Rear Panel
6
4
5
7
8 9
Obtain gas cylinder and chain to
running gear, wall, or other
stationary support so cylinder
cannot fall and break off valve.
1
Cap
2 Cylinder Valve
Remove cap, stand to side of
valve, and open valve slightly. Gas
flow blows dust and dirt from valve.
Close valve.
3
Cylinder
4 Regulator/Flowmeter
Install so face is vertical.
5
Regulator/Flowmeter Gas
Hose Connection
6 Welding Power Source Gas
Hose Connection
Connect supplied gas hose
between regulator/flowmeter gas
hose connection, and fitting on
rear of welding power source.
7
Flow Adjust
Typical flow rate is between 15-20
liters per minute. Check wire
manufacturer’s recommended
flow rate.
8
CO
2
Adapter (Customer
Supplied)
9 O-Ring (Customer Supplied)
Install adapter with O-ring between
regulator/flowmeter and CO
2
cylinder.