Harbor Freight Tools 91146 operating instructions See Figures F, To Install a Gas Cylinder

6.Turn the Pressure Adjustment Knob clockwise to tighten the tension of the welding wire. NOTE: Use the Pressure Indicator Scale to set the desired drive roll pressure. (See Figure I.)

7.Remove the Gas Nozzle (100A) and Contact Tip (90A). (See Figure I.)

8.Turn the Power Switch (10) to its “ON” position. (See Figure I.)

9.Depress the Inching Button (36A) until the welding wire extends about 1” out of the Gun. Then, reinstall the Gas Nozzle (100A) and Contact Tip (90A).

(See Figures F and I.)

10.Feed the welding wire out of the Gun to check for proper drive roll pressure. If necessary, tighten the Pressure Adjustment Knob to prevent the wire from slipping. (See Figure I.)

11.Cut off the welding wire so that only about 3/8” extends from the Gun. Then close the Upper Right Side Panel (21) of the welding machine and turn the Power Switch (10) to its “OFF” position. (See Figure I.)

To Install A Gas Cylinder:

1.CAUTION! Using an oversized gas cylinder can cause tipping, result ing in cylinder and equipment damage and personal injury. Do not exceed maximum cylinder weight of 100 pounds.

2. CAUTION! Do not use the Argon/Mixed Pressure Regulator/Flow Meter (43) with CO 2 shielding gas. To use CO2 shielding gas, you must install a CO2 gas Pressure Regulator/Flow Meter (not included).

3.With assistance, set the cylinder upright on the Base (19) of the Welder. Make sure to use the accessory Chain to secure the cylinder to the body of the Welder.

(See Figure J, next page.)

4.Remove the Cap from the cylinder. Stand to the side of the cylinder Valve, and open the Valve slightly to blow dust and dirt from the Valve. Then, close the Valve. (See Figure J.)

5.Make sure the Flow Adjust on the Pressure Regulator/Flow Meter (43) is turned off. Then, screw the Pressure Regulator/Flow Meter firmly onto the cylinder Valve. (See Figure J.)

6.Attach the Gas Hose (202A) from the Pressure Regulator/Flow Meter (43) to the Gas Inlet Valve (29) located on the Back Panel (30) of the Welding machine.

(See Figure J.)

SKU 91146 For technical questions, please call 1-800-444-3353. PAGE 17