SUBMERGED ARC & AUTOMATIC EQUIPMENT Automatic Welding Systems Improve productivity with the NA-3S or NA-4 automatic wire feeders. These systems have been specially designed to deposit more weld metal at fast travel speeds which eliminates bottlenecks and cuts costs. FEATURES ► Operating Versatility - Easily adapt to a wide range of wire feed speeds and wire sizes. ► Compact Units With Excellent Flexibility -Fit into simple fixtures or the most complex automated production lines. ► Rugged Construction - Minimize downtime and maintenance costs. RECOMMENDED LINCOLN ELECTRIC POWER SOURCES ► NA-3S Idealarc® DC-600, DC-655, DC-1000 and DC-1500 ► NA-4 Idealarc® AC-1200 WHAT’S REQUIRED ► Nozzle Assembly ► Control Cable ► Weld Power Cable ► Power Source ► Wire Reel(s) and mounting WHAT’S INCLUDED ► 10 ft. (3.1 m) Control Cable ► Specific Drive Roll Kit with Each Head INPUT OUTPUT roi LQJ Publication E9.10 I Issue Date 02/13 © Lincoln Global, Inc. All Rights Reserved. THE LINCOLN ELECTRIC COMPANY 22801 St. Clair Avenue • Cleveland, OH • 44117-1199 • U.S.A. PH: +1.216-481-8100 • www.lincolnelectric.com LINCOLN I■ ELECTRIC THE WELDING EXPERTS*

A CLOSER LOOK 1. Ammeter – Indicates current only while welding. 5. Travel – Set to “Off” for no travel; “On” for travel without welding; “Auto” for welding operations. 2. Voltmeter – Indicates welding voltage only while welding. 6. Inch Up and Inch Down – Press to inch electrode at the speed set by “Inch Speed” control on inner panel. 3. Power – Turns wire feeder input power on and off. 4. Current Control – On NA-3S, adjusts wire feed speed to control welding current. On NA-4, adjusts welding current by controlling power source output. 7. Voltage Control – Adjusts arc volts. 8. Start – Pushbutton...

RECOMMENDED ACCESSORIES SINGLE ELECTRODE Submerged Arc Contact Nozzle Assembly For 5/64 thru 3/16 in. (2.0 thru 4.8 mm) electrode at currents generally below 600 amps. Outer flux cone gives full flux coverage with minimum consumption. Order K231-1 Innershield® Positive Contact Nozzle Assembly For welding with Innershield® flux-cored wire at high currents. Optional water cooling attachment (T12928) recommended for currents over 600 amps. Order K148A for 3/32-1/8 in. (2.4-3.2 mm) wire K148B for 5/32-3/16 in. (4.0-4.8 mm) wire Concentric Flux Cone Assembly For use with K148, K148 with a K149, or...

“F” suffix indicates model for machinery and fixture builders. The following parts are excluded: head mounting, electrode cables, cross seam adjuster, flux hopper and pointer. CUSTOMER ASSISTANCE POLICY The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment. Our challenge is to meet the needs of our customers and to exceed their expectations. On occasion, purchasers may ask Lincoln Electric for information or advice about their use of our products. Our employees respond to inquiries to the best of their ability...