Hobart Welding Products 120 User Manual
OM-210 088 Page 13
3-4.
Installing Gas Supply
Obtain gas cylinder and chain to
running gear, wall, or other station-
ary support so cylinder cannot fall
and break off valve.
running gear, wall, or other station-
ary 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.
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
Hose Connection
6
Welding Power Source Gas
Hose Connection
Hose Connection
Connect customer supplied gas
hose between regulator/flowmeter
gas hose connection, and fitting on
rear of welding power source.
hose between regulator/flowmeter
gas hose connection, and fitting on
rear of welding power source.
7
Flow Adjust
Typical flow rate is 20 cfh (cubic feet
per hour). Check wire manufactur-
er’s recommended flow rate.
per hour). Check wire manufactur-
er’s recommended flow rate.
8
CO
2
Adapter (Customer Sup-
plied)
9
O-Ring (Customer Supplied)
Install adapter with O-ring between
regulator/flowmeter and CO
regulator/flowmeter and CO
2
cylinder.
Tools Needed:
CO
2
Gas
8
9
3
1
2
4
5
7
1
2
3
Argon Gas
OR
ST-802 028 / ST-802 086
5/8, 1-1/8 in
6