OM-245 849 Page 11
4-5. TIG Lift-Arc DCEN (Direct Current Electrode Negative) Connections
! Turn off power before mak-
ing connections.
1 Positive (+) Weld Output
Terminal
Connect work lead to positive weld
output terminal.
2 Negative (−) Weld Output
Terminal
Connect TIG torch to negative weld
output terminal.
3 Gas Cylinder
4 Cylinder Valve
Open valve slightly so gas flow
blows dirt from valve. Close valve.
5 Regulator/Flowmeter
6 Flow Adjust
Typical flow rate is 15 cubic feet per
hour (7.1 liters per minute).
Connect torch gas hose to regula-
tor/flowmeter.
7 Gas Valve
Valve controls gas preflow and
postflow. Open valve on torch just
before welding.
Tools Needed:
21 mm (11/16, 1-1/8 in.)
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