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A-7
INSTALLATION
PRECISION TIG 275
A-7
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TIG TORCH CONNECTION
The Precision TIG torch connection box, located on the
right side of the machine, provides all the input and
output connections for the installation of both air-
cooled and water-cooled TIG torches with fittings con-
forming to Compressed Gas Association (CGA) stan-
dards:
Note: The Precision TIG provides an insulated Torch
Reel and Holster for handy and safe storage of con-
nected torch when not welding, and excess torch cable
length while welding.
Combination connectors (Power/Water and
Power/Gas) are electrically "hot" while welding in
STICK or TIG modes.
If using an Air-Cooled Torch be sure coolant is
shut off and/or Cooler is unplugged from the
Precision TIG Water Cooler Receptacle on the
torch side of the upper case back.
Observe the safety precautions necessary for han-
dling and using compressed gas containers.
Contact your supplier for specifics.
CYLINDER could explode
if damaged.
• Keep cylinder upright and
chained to a support.
• Keep cylinder away from areas
where it could be damaged.
• Never allow the torch to touch the cylinder.
• Keep cylinder away from live electrical cir-
cuits.
• Maximum inlet pressure 150 psi.
-----------------------------------------------------------------
The Precision TIG machines do not have Hi-Freq.
available at the Stick electrode stud, therefore stud
connection adapters (such as LECO. S19257-series)
cannot be used for torch connection.
Single-piece cable air-cooled torches with a 3/8-24 RH
connector fitting (such as the Magnum PTA-9/-17, or LA-
9/-17) require the provided S20403-4 Torch Connector,
while those with a 7/8-14 RH connector fitting (such as
the Magnum PTA-26, or LA-26) require the available
K2166-1 Torch Connector. (See Figure A.3)
Two-piece cable air-cooled torches (such as PTA-, or LA-
torches) can be used with the available 1/2” Stud
Connector (S20403-3) with with a 7/8-14 LH male fitting.
Magnum PTW-18/-20 (or LW-) water-cooled Torches
require no adapter for Precision TIG connection.
WARNING
W
ORK
S
TICK
W
ORK
S
TICK
STICK
ELECTRODE
STUD
WORK
STUD
TIG TORCH
CONNECTIO
N
PANEL
FIGURE A
(Shown without hinged stud cover)
REMOTE
CONTROL
RECEPTACLE
CABLE
STRAIN
RELIEF HOLES
FIGURE A.2