SUBMERGED ARC & AUTOMATIC EQUIPMENT Product Number See Page 4 for additional models Wire Size Range (Varies by Model) Wire Feed Speed Range NA-4: Subject to arc voltage used 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. ► 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 WHAT'S REQUIRED ► Weld Power Cable ► Wire Reel(s) and mounting WHAT'S INCLUDED ► Specific Drive Roll Kit with Each Head Publication E9.10 I Issue Date 9/10 © Lincoln Global, Inc. All Rights Reserved. THE LINCOLN ELECTRIC COMPANY 22801 St. Clair Avenue • Cleveland, OH • 44117-1199 • U.S.A.

A CLOSER LOOK 5. Travel – Set to “Off” for no travel; “On” for travel without welding; “Auto” for welding operations. 1. Ammeter – Indicates current only while welding. 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 TO EXPAND MACHINE CAPABILITIES SINGLE ELECTRODE Submerged Arc Contact Nozzle generally below 600 amps. Outer flux cone gives full flux coverage with minimum consumption. Innershield® Positive Contact Nozzle Assembly flux-cored wire at high currents. Optional water cooling attachment Concentric Flux Cone Assembly concentric flux coverage around the Narrow Gap Deep Groove Nozzle Water cooled submerged arc nozzle deep. Includes flux delivery tube, flux hose and rackets to permit nozzle rotation, and two contact tips. Rugged contact jaws for maximum life at currents over 600...

RECOMMENDED ACCESSORIES TO EXPAND MACHINE CAPABILITIES K1797-L Control Cable Extension. K1798 Control Cable Adapter. "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. For best welding results with Lincoln Electric equipment, always use Lincoln Electric consumables. Visit www.lincolnelectric.com for more details. CUSTOMER ASSISTANCE POLICY The business of The Lincoln Electric Company is manufacturing and selling high quality welding equipment, consumables, and cutting equipment....