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A-4
INSTALLATION
SQUARE WAVE™ TIG 175
A-4
A TIG welding torch with cable and connector is sup-
plied with the welder. Turn the Power Switch “OFF”.
Connect the torch cable quick connect plug into the
Electrode/Gas Output Receptacle on the front of the
welder and turn it clockwise until it is tight. This is a
quick connect terminal and also provides the gas con-
nection for the shielding gas to the torch.
To avoid receiving a high frequency shock, keep
the TIG torch and cables in good condition.
__________________________________________
WORK CABLE CONNECTION
A work cable with attached work clamp is factory con-
nected to the SQUARE WAVE™ TIG 175. To minimize
high frequency interference, refer to Machine
Grounding and High Frequency Interference
Protection section of this manual for the proper pro-
cedure on grounding the work clamp and work piece.
SHIELDING GAS CONNECTION
An adjustable gas pressure regulator and flow gage is
supplied with the SQUARE WAVE™ TIG 175. Obtain
the necessary inert shielding gas (usually argon).
Connect the cylinder of gas with the pressure regulator
and flow gage. Install the gas hose between the regu-
lator and gas inlet (located on the rear of the welder).
The gas inlet has a 5/16-18 right hand female thread;
CGA #032.
The optional undercarriage features a pivoting platform
that simplifies loading and unloading of gas cylinders.
A cylinder is loaded by leaning it slightly sideways and
rolling it toward the platform. The cylinder’s weight will
push the platform downward against the floor, forming
a ramp. At this point, the cylinder may be rolled up the
platform into its final position. Secure the cylinder in
place with the provided chain. Unload by following
these steps in reverse.
FIGURE A.1 Reconnect Leads
INPUT LEADS
L1 & L2
L
EAD H1
(DO NOT
REMOVE)
F
OR LOWEST RATED VOLTAGE
:
H2 CONNECTED
F
OR HIGHEST RATED VOLTAGE
:
H3 CONNECTED
B
ACK VIEW OF LINE SWITCH
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.
___________________________________________
WARNING
CONNECTIONS FOR TIG (GTAW) WELDING
TIG TORCH CONNECTION
Refer to Included Equipment in the Operation Section
of this manual for TIG welding equipment which is
included with the SQUARE WAVE™ TIG 175.
WARNING
OUTPUT CONNECTIONS
FIGURE A.2 Location of Output Connections
ELECTRODE/GAS OUTLET
RECEPTACLE
WORK CABLE & CLAMP