Connecting Shielding Gas Supply - Miller Multimatic 220 Owner's Manual

5-12. Connecting Shielding Gas Supply

1
2
3
1
2
10
9
MIG
wrench
crescent wrench
OM-281426 Page 16
chippinghammer
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Complete Parts List is available at www.MillerWelds.com
11
12
5
6
7
8
1
2
4
5
9
6
TIG
Ref. 804 654-A / 282718A
Obtain gas cylinder and chain to running
gear, wall, or other stationary support so cyl-
inder 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—Mixed Gas
4 Cylinder—Argon Gas
5 Regulator/Flowmeter
Install Regulator/Flowmeter so face is
vertical.
6 Regulator/Flowmeter Gas
Connection
7 Welding Power Source CO
Gas Hose Connection
8 Welding Power Source Argon Gas Hose
Connection
Connect gas hose between regulator/flow-
meter gas hose connection, and the appro-
priate fitting for the gas type on rear of
welding power source.
9 Flow Adjust
Typical flow rate for CO shielding gas and
2
MIG (GMAW) welding is 15 to 30 CFH (cubic
feet per hour) and mixed gas is 25 to 45
CFH.
Typical flow rate for Argon shielding gas and
TIG (GTAW) welding is 15 to 25 CFH and
aluminum MIG (GMAW) welding is 35 to 45
CFH. Check wire manufacturer's recom-
mended flow rate.
10 Cylinder—CO Gas
2
11 CO Adapter (Customer Supplied)
2
12 O-Ring (Customer Supplied)
Install adapter with O-ring between regula-
tor/flowmeter and CO cylinder.
2
OM-281426 Page 27
Hose
And Mixed
2