OM-235 816 Page 6
B. Connecting Torch With Two-Piece Cable
805 064-A
!
Turn Off welding power source
power before installing torch.
Obtain the following hose:
1
Gas Hose With 5/8-18 Right-
Hand Fittings
2
Gas Cylinder
3
Regulator/Flowmeter
4
Welding Power Source
Connections:
5
International Style Connector
6
Gas Fitting
7
Torch Gas-In Hose
8
Torch Power Cable
9
14-Pin Plug
Connect torch power cable to interna-
tional style connector (see Section
3-2).
Connect international style connector
to weld output terminal.
Connect gas-in torch hose to gas
fitting.
Connect 14-pin plug to matching re-
ceptacle on power source.
10 Work Clamp
Connect work clamp to a clean, paint-
free location on workpiece, close to
weld area.
Use wire brush to clean weld joint
area.
Operation:
11 Contactor Control Switch
Use switch to turn torch on/off.
12 Amperage Control Dial
Turn dial to control amperage.
Operating Torch Gas Valve:
13 Torch Gas Valve
Valve controls gas preflow and post-
flow. Open valve on torch just before
welding.
Preflow is used to purge the immedi-
ate weld area of atmosphere.
Postflow is required to cool tungsten
and weld, and to prevent contamina-
tion of tungsten and weld. After weld-
ing, leave valve open about 1 second
for every 10 amperes of weld current.
Close valve on torch when postflow is
finished.
14 Foot Control
Use of customer supplied foot control
is optional.
Tools Needed:
5/8, 7/8 in.
Torch With Gas Valve
10
Torch Without Gas Valve
1
805 063-A
.
If applicable, install high-frequency unit.
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