Tig Torch Connection - Lincoln Electric PRECISION TIG 275 Operator's Manual

®
PRECISION TIG 275
REM OTE
CONTROL
RECEPTAC LE
STICK
ELE CTRODE
STUD

TIG TORCH CONNECTION

The Precision TIG ® torch connection box, located on the right
side of the machine, provides all the input and output connec-
tions for the installation of both air-cooled and water-cooled TIG
torches with fittings conforming to Compressed Gas Association
(CGA) standards:
Note: The Precision TIG ® provides an insulated Torch Reel and
Holster for handy and safe storage of connected 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
Cooler Receptacle on the torch side of the upper case back.
Observe the safety precautions necessary for handling and
using compressed gas containers. Contact your supplier for
specifics.
FIGURE A.2
STICK STICK
(Shown without hinged stud cover)
FIGURE A
WARNING
® Water
WORK WORK
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 circuits.
• 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 con-
nection.
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 ®
A 6
INSTALLATION
TIG TO RCH
CONNECTIO N
PAN EL
WORK
STUD
CA BLE
STRAIN
REL I EF HOLE S
connection.