Hobart Welding Products OM-947 - Manual (Page 18)

OM-947 Page 14
4-4. Installing Gas Supply
.
This Section only applies to MIG units or units equipped with MIG kit.
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 regulator/flowmeter to cylinder
valve. Be sure that gauge face is vertical for
viewing and adjusting.
5 Regulator/Flowmeter Gas Hose
Connection
6 Welding Power Source Gas Hose
Connection
Connect gas hose between
regulator/flowmeter gas hose connection,
and fitting on rear of welding power source.
7 Flow Adjust
Turn flow adjust screw to increase or
decrease gas flow. Flow rate should be set
when gas is flowing through welding power
source and welding gun. Turn Range
switch to Purge or Fan Only position. Press
gun trigger to start gas flow. Typical flow
rate is 20 cfh (cubic feet per hour). Check
wire manufacturer’s recommended flow
rate.
Tools Needed:
802 028 / Ref. 803 379-A
11/16, 1-1/8 in
6
4
5
7
1
2
3
Shielding
Gas