Connecting Shielding Gas Supply. Miller MATIC 355, MILLERMATIC 355

allen_wrench

5-17. Connecting Shielding Gas Supply

1

2

4

2

3

1 allen_set

11

10

6

9

7

NGO’s tools/

8 flathead

1

2

5

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 Mixed Gas Cylinder

4 CO

2

Gas Cylinder

5 Argon Gas Cylinder

6 Regulator/Flowmeter

Install so face is vertical.

7 Regulator/Flowmeter

Connection

Gas

8 Welding Power Source CO

2

Gas Hose Connection

Hose

And Mixed

Connect gas hose between regulator/flowmeter gas hose connection, and the appropriate fitting for the gas type on rear of welding power source.

9 Flow Adjust

Obtain gas cylinder and chain to running gear, wall, or other stationary support so cylinder cannot fall and break off valve. Typical flow rate for CO

2

. shielding gas and MIG

(GMAW) welding is 15 to 30 CFH (cubic feet per hour) and mixed gas is 25 to 45 CFH.

10 CO

2

Adapter (Customer Supplied)

11 O-Ring (Customer Supplied)

Install adapter with O-ring between regulator/flowmeter and CO

2 cylinder.

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