INSTALLATION | ||
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FOR LOWEST RATED VOLTAGE : H2 CONNECTED
FOR HIGHEST RATED VOLTAGE : H3 CONNECTED
LEAD H1
(DO NOT REMOVE)
INPUT LEADS
L1 & L2
BACK VIEW OF LINE SWITCH
FIGURE A.1 Reconnect Leads
OUTPUT CONNECTIONS
ELECTRODE/GAS OUTLET
RECEPTACLE
WORK CABLE & CLAMP
FIGURE A.2 Location of Output Connections
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 PRO.
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.
WARNING
To avoid receiving a high frequency shock, keep the TIG torch and cables in good condition.
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WORK CABLE CONNECTION
A work cable with attached work clamp is factory con- nected to the SQUARE WAVE TIG 175 PRO. To min- imize 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 PRO. 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 regulator and gas inlet (located on the rear of the welder). The gas inlet has a
The optional undercarriage features a pivoting platform that simplifies loading and unloading of gas cylinders.
WARNING
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.
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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