Lincoln Electric NA-3N User's Manual
Contents
1. 5 Input Cable Epecity Length nn E nchudes two 4 0 electrode i tables and the rnulti conductor teniral cable 75 raar TT3T24 D Drie Rall Kit Bar 45 D5z 1 2 1 4mm cored were DC Power amp urce Constant Current typa with on off con iol pi power source ouhput Al amp a operabes with Constant K235 Extension Motor Fluix hopper and Electrode cables Optional when mare than 4 12rn is reguired Spezity distance irom head to controls 4 LZm Hopper Cord included with UB A L2m Matar Cord Included with KZOE ard K203 4 L2m Electrode Cables Included Conact Mozzle with KD Optional see page amp Maa Solid Wire Size 1 TS qB imm Tn dmm Wim Feed N 4 and NA F Mo Sine Kit Speed Range Same i NA X5 and NA 3SF npe K38B HA 35 cr HA4 PE Doad 5enemi m MAd conis rentace KALO N 35 controis HAJS cor HA4 WERE 15 Ddenmen AD scura Aor ie wih an AC LXX power ce ELO cr RELUE 3303 39 84 5 Bevril 28 immi UEFE jigiin 1 3mm HA JGF er HA AF For Gear Falk Shri d Add HF Inr high requency aapkcsmors lid Wins Siraightener included ame controls precushy included wih K24 amp 3 Depends on Arc Voltage Laad THE LINCOLN ELECTRIC COMPANY World s Leader in Walde and Cutting Products Premier Manufacturar af Industrial Motors Salas and Service through Subsidiarias and Distributors Worldwide Clevaland Ohio 44117 11898 U S A EH May dd2. Automatic Wire Feeders E9 10 NA 3 and NA 4 Automatic Welding Systems with SOLID STATE controls mau F Ye UNDERWRITERS LABORATORIES LISTED Models NA 3H NA 3NF NA 3S NA 3SF N 4 NA AF Six Benefits From LINCOLN Automatics The precise control of welding procedures striking characteris tics start and stop bead size and shape and arc stability facilitates economical weld ing to the mast exacting requirements Autamatics deposit more metal at faster travel speeds than semiaut matics to increase production eliminate bottlenecks and cut costs Electrode position adjustments lock tight far pushbutton production welding with consistent quality Easily adjusted far a wide range of processes feed speeds wire sizes procedures and methods as needed Compact units with excellent flexibility fit inta simple fixtures or the most complex automated production lines Solid state controls and rugged construction minimize down time and maintenance costs Choice Of Models Tc pales Constant Wire Feed Speed Control with Hot Starting For NA 3N Use with Constant Voltage DC Power Sources Applications Include B iInnershield Selft Shielded Flux Cored Welding Other Open Arc Processes GMAW MIG and Metal Core Single Electrode Submerged Arc at High Current Densities Small Wire Twinarc Submerged Arc HEAD MOUNTING with hardware and WIRE STRAIGHTENER insulation for flux cared electrodes OPTI
3. M LOOSEN SET SCREW ADUSTER WITH ALLEN WRENCH LOOSEN SET SCREW WITH ALLEN WRENCH HEAD ROTATES ARDUND VERTICAL MOUNTING AXIS ROTATES AROUND DRIVE ROLL SHAFT minimize equipment downtime and last production Simple routine service keeps malntenance casts kw Solid state controls give worry free operation Rugged construction needs only simple routine ser vice Tor continuous performance Function lights built inta the printed circuit boards along with a comprehensive trouble shooting guide speed repairs Plug in components are quickly replaced CONTACT ASSEMBLIES Innershiekd and Anc Subrnenged Kl4B For 062 L6mm thru 3 16 48mm wire at high currents Optional water coaolimg atbachnment T1292B recommended when Innergheeld welding aver DD ams K149 Linc Fill Long Stickout 2 5 5 1 12 7cm Exterrsian Submerged Arc K231 tar SEA 2 0mm thru 7 327 5 6mm elec trodes at currents generally below amp O0 amps Outer Flux cone gives full flux overage with minimurm consurnptiarn wu Single Electrode Submerged Arc K233 for 035 89mm AS thru 3 327 2 4mm wire P at currents under 600 amps Submerged Arc K226R 1 8 3 2mm thru 7 32 5 6mm wire K226T 3 32 2 4mm or 1 8 3 2mm wire Rugged contact jaws for maximum life at currents over 600 amps Arc K285 Concentric Flux Cone far use with K148 K148 with a K149 K391 or K129 nozzles Gi
4. ONAL K298 REEL FOR 50 AMD amp 0 POUND COILS Includes adjustable brake mounting shaft hardware and ansulatinn Type KIA 4 L2m MOTOR CORD MODEL NA 3NF For Machinery and Fixture Builders identical to the NA 3N except the following parts are not included NOZZLE J Optional Head Mounting Electrode Cables Cross Seam Adjuster MODEL Arc Sensing Control with Hot or Cold Starting For Use with N A 4 Constant Current AC Power Sources for Submerged Arc Welding Applications Include Control Type K388 B AC AC tandem arc and AC AC AC triple arc systems Head Type E Single electrode submerged arc when arc blow limits the DC welding K208 or K209 current and travel speeds BM identical to NA 35S controls except for meters current sensor and wiring Lincoln offers full equipment support tor both tandem arc systems K387 and triple arc systems K384 Meet Your Needs Arc Sensing or Constant Wire Feed Speed Control with EE Hot or Cold Starting For Use with Either Constant Current NA 3S or Constant Voltage DC Power Sources Applications Include B Single and multiple electrode submerged arc B innershield flux cored welding and Outershield B Other Open Arc Processes GMAW MIG and Metal Core WIRE STRAIGHTEMER a lor solid electrodes FLUX HOPPER mm x with elactric Lic RU HEAD MOUNTING n with hardware and aces di insulati
5. a tions See EBT5 2 Requires adapter for automatic heads Innershield K405 Automatic Inmershield Mazzle for 62 L amp 6mm thru l20 3X 0mm wire at currents up ta 600 amps for use with M 3 or NA h Automatic Heads Innershiaki Twinarc K238 Feeds two 3 32 2 4mm Innershield wines for high speed weds an 12 gauge ip thack sipel includes water cooling tubes Part ularly suited for roundabout filet and lap welds when an amp member is thicker than 1 27 E 4mm MULTIPLE WIRE SUBMERGED ARC FOR High Deposit Rates Fast Travel Speeds Most applications that can be successfully welded with single wire automatic equipment can be more economically welded with multiple wire methods The reason is simple Two electrodes feeding inte the same Minimum Distortion weld carry total higher current than a single wire Higher total current increases deposit rates and or speeds and reduces welding casts Also high travel speeds minimize distortion Twinarc feeds two electrodes thru one head Wires can be placed in line with the joint for highest speed or across the joint far a wider bead and less penetration 9 9 m HEST SPEED AND PENETRATION o FOR WIDE HEAVY BEAD OR POOR FIT UP SHALLOW RENETRATION qug S FOI SPFCIAL CONDITIONS Multiple Arc utilizes sepa rate heads and power sources making one weld Twinarz can be used ta feed additional ele
6. ctrodes for exceptionally high di posit rates on Fast Fill type joints OPTIONAL FEATURES Horizontal Head Adjuster KS86 provides crank adjust ment ol head position Has 2 50 Brm horizontal travel Vertical Lift Adjuster K29 provides 4 101 6mm hand crank adjustment af vertical head position Hr also includes a 338 35 2 mm in and out adjustment with stops that can be preset far simple repetition of the same adjustment Solid State Spreadarc K278 Far use with the MA 3 or MA 4 head and control For hardfacing build up using a Twinarc ar single arc nozzle Calibrated dwell time and oscillation speed controls per mit the 5preadarc to cover large areas quickly with smooth beads af minimum admixture Flux cored alectrade open arc and submerged arc procedures can be used TC 3 Self Propelled Travel Carriage Carnes head and controls in ether direction on a beam ol suitable bersgth It operates either automatically with the weld controls oe manually The speed ranges set with a continuous speed control without gear changes far the two available models are E 5 75 ipm L1 1 9m miny and F 15 270 ipm 4 amp 8m min Requires 115 volt AC 60 or 50 hertz power available fram Lincoln power sources Order Standard Carriage K325 fnr single electrode and Twinarc 2 wires fed through 1 heard installations Order High ly Carriage K325HC for tandem arc 2 or 3 heads and Twinarc tandem arc up tn 4 wi
7. far routine procedure changes Start and stop pushbuttoans control welding and treno cycles Inch pushbuttons feed electrode up and down when nat welding Meters indicate welding current and voltage Control power switzh turns wire feeder input power on and aff e Travel switch controls the travel mechanism for aw tamatic starting and stopping when welding travel without welding during setup and travel off Contrals al Unparalleled Versatility adjust procedures and travel sequence for best arc striking welding and crater filling for all suitable processes and applications e inch speed adjusts for best arc striking indepen dently of welding wire feed speed e Travel can start either when the start button 15 pressed or the arc strikes s pen circuit voltage control sets OCV on some Lincoln power sources far optimum striking Optional start P C board cantrols penetration bead size or other factors for an adjustable time at the start of Ehe weld Solid state circuits carmpensate far input voltage and electrode drag fluctuations minimizing unexpected procedure changes while welding Travel stops when the stop button is pressed the arc stops or at end af crater fill time to control bead size at the end of the weld Optianal crater P C board controls procedures for an adjustable time to regulate bead size or fill cr ters at the end of the weld e Adjustable delay timer control amp burnback
8. lletin 5613 Double Tandem see bulletin 5614 Two Way Tandem see bulletin S624 NA 3N and NA 3NF DC Power Source Constant Voltage Type with on aff con tral cd peer source output HEUUIMEL EUVWUIFNVIEIN I AC Input Power required for all models is 115 volts 60 or 50 hertz of 360 volt amperes capacity for the head and controls An additional 250 valt amperes is recuired Far the Linceln tr carriage This power should be obtained from the Lircalr peser saure ba turn the wine feeder an and cff with the power saunca E215 Input Cable Specify Length nchudes two 4 electrode cables and the musdti conductor control cable Feel and Mounting 9 OW K299 pr K3959HF 2 E Order separately 3 u 2B 5 5 27 4 L2m Motor Cord Included with K212 and K213 Order Separately K234 Ed n ion Motor Cord and Electrode cables Optional when more than F i amp required Specify distance from head to contrals Y L27 Electrode Cables Included Two or More A D wah Kz12 Wine Bine KE VILER 9 4 240 LIEI 1 B z men Ax paz 9 1 cenmen SE 4 mm 120 X mmi TR immi K213A EIE E2130 U 3 32 5 32 jaim 1 18 3 32 1 61m TS g 1 xem FA 4 mmi TRI X mmi TRI X mmi Inscludes Flux Cored Wire Siraighipner For Gear Raliok Suren 7 Includes Small Wire Spring Guide Ad HF tyr high Tnaquency applazstior K299 or Kz85HF NA 3S and NA 3SF dip O Order separately K21
9. of elec trode from the puddle at the end of the weld to prevent crater sticking The circuit can be set ta re tract the electrode fram the crater for easy fixture unloading or to remove a slag ball from the end af the electrode for better starting when using Linc Fill procedures Adjustable brake on reel for 50 608 22 7 27 2kg coils prevents reel overrun A CV VV toggle switch located on the variable voltage P C board in the M 35 control box permits usa with a constant current ar constant valtage power source lets you choose the best pro cess and procedures for taday s meds Can be adapted in minutes for new processes and major procedural changes withaut large expense ar long equipment dali ery delays Use open arc ar submerged arc welding as desired e Feeds O35 thru 7 32 solid electrodes or 045 thru WAZ Thux coned electrodes Shipped wih ane of Tour wine Size kits and gear box ratios see back pagel Install parts to conwert far diHerent wire sies and ratios im minutes e Two position adjustable drive roll pressure develops the right farce to feed all electrode types e Feeds wire from EO B08r 22 7 27 2kg coils or 300 tn 1000 pound 136 to 454kg Speed Faed reels and drums adjusts quickly ta new appli cations with different processes yet lock tight f r repeti tivi welding s Heads rotabe in three different planes as shown in the sketches True left and right head mounting e ross seam adju
10. on B insulation i A Aa Type r2 nn 4 L2m FLUX HOPPER CORD 4 L2m MOTOR MODEL NA S3SF For Machinery and Fixture Builders Identical to the MA 35 except the following parts are not included Head Mounting Electrade Cables Cross Seam Adjuster HEAD TYPE K209 Flux Hopper and Painter Aor B The NA 5 and NA 5R When the application quality control or welding procedures require presetting and monitoring of both wire feed speed and voltage the NA 5 digital automatic welding system is recommended See EB15 The NA 5A is recommended for remote controlled interface to automated or programmable controllers and computer controlled welding robots This new system combines the accuracy and reliability of the NA 5 automatic control the maneuverability of a gun cable wire feed unit and the process control versatility lo communicate with remote control equipment through electrically isolated input and output signals Contact your Lincoln Technical Representative for complete details See E816 13 POINTER 1 ASSEMBLY CONTACT NOZZLE Optional 2 BD i Tha cantrol boxes for ali madels have the same operator controls EASILY ACCESSABLE INSIDE CONTROL PANEL Shown with optional start and crater contrals Convenient Operator Controls located in one placa for production welding efficiency Current and voltage controls eliminate returning t the pawer source
11. res installations Magnetic Separator K586 Removes magnetic particles from recirculated submerged arc fluxes to reduce porosity caused by a build up af mill scale K310 Flux Screen Designed to fit the top of either the standard fil tunnel of a continuous flux feed system or a K58 magnetic separator The unit has steel screen with 65 16mm to 075 158mm openings and an air vibrator attached to the frame The vibrator can be used with air line pressures ranging Tram 20 100 psi 138 689 amp Pa Wire Reel Assembly K299 to accommodate 50 Ib 227kg or G Ib 27 2kg puls af wine on automatic wire feeders The unit includes a wie reel mounting spindle and braking system To obtain the reel only order LA504 High Frequency Unit K238 supplies high frequency power to the welding leads for more positive starting on some jobs Operates on 115 volt 50 or 60 hertz Handles up to 750 amps welding current Cannot be used with Linc Fill Starting Relay option or Spreadarc Requires special head flux hopper and wire reel insulation High Frequency Insulation HF must be factory installed on new heads used Tar high frequency starting Linc Fill Starting Relay K237 for optimum arc starting when using K149 long stickout extensions It cannot be used with high frequency starting Solenaid Assembly K223 with valve automatically controls water flaw when using K239 or cooling attachment on K148 contact assemblies Full A
12. ster lets the operator track along irregular joints while welding gptianal vertical and horizontal head adjusters make quick hand crank set ups rather than balt held slide adjustments where frequent job changes accur Gear box operates in any position Mon fluid grease can t leak High efficiency spur gear box results in a smaller head with no sacrifice in feeding ability inte simple fixtures or fully automated systems makes th benefits f automatic welding avail able ta large or small fabricators and rebuilders Simple head mounting with versatile positioning minimizes fixture requirements and speeds installa tion a One compact box containing all controls mounts al most anywhere for maximum operating efficiency Start stop and inch pushbuttons can be relacated inta fixture console when desired Power source to control box cables up to 100 ft 30m lang plug mto tee control box Standard head to control leads plug into the cantra bax Optional head to control extension cables up to 75 ft 22 5m lang plug in at both ends Use 115 volt 60 or 50 Hertz power Hinged panels provide easy access to components inside the contral bax Qui kly recannect stop and start sequence as de sired for new applications using plugs and pins on the logic board No saldering bolted connections ar taping needed HEAD POSITION ADJUSTMENTS ROTATES AROUND L MOTOR AXIS d 7a L H i je URUSS SEA
13. utomatic Smoke Exhaust Attachment K348 For use with a K148 nazzie and K184 Linconditianer Includes an intake tube and brackets for mounting tube en nozzle Also includes 15 ft 4 5m of 1 LO exhaust hose tn connect intake tube to exhaust urit Flux Happer K219 with electric flux valve for submerged arc welding Standard on NA 35 and NA 4 Flux Control Kit T158651 ri Start Controls PC Board K221 Adjusts starting current and voltage higher or lower than welding procedures far an adjustable period of time as needed to control penetration bead uze or other Tactors at the start Crater Controls P C Board K245 Adjusts the finishing current and voltage higher nr imwer than welding procedures for an adjustable perii of time as needed to control bead size cor Fill craters at the end of the weld Electronic Valtmaeter K263 Replaces the standard analog wilt m ter shipped with MA X Includes red Irghts to indicate high or low voltage and a green light t show when thie arc voltage 15 wihin eher 5 or 1 volt af the desired wolt age pre set on the dial Wire Size Conversion Kits To convert wire feeder for different sized electrodes Includes drive rolls and guide tubes Four kits are available Tardi T174 Tan T3240 TI VIa o 4 36mm 15 332 1 5 2 4mm Qa35 052 D39 T 3mmyj Q45 sg 72 1 3mm Equipment for Multiple Arc Systems Tandem Arc see bulletin 612 Triple Arc see bu
14. ves concentric flux cowerage around the elecitrade free to pivot the guide rallers riding in the joint maintain wire alignment to eliminate the need f r Submerged Arc l K218 Horizontal Fillet amp Lap Guide with ihe head difficult faxturing Teinarz kits include contact nozzie wira guikdes wire teed rolls and guides and a seront wire reel and mounting bracket Tiny Twinarc K128 Feeds two 045 1 Imm 1415 L6mm 5 64 20mm or 3 32 2 Amm sol electrodes Tor high speed submerged arc weids an 14 gauge ib heavy piate TWINARC Tiny Twinarc Wire Straigh amp erwer K281 Siraighbers wire diameters O45 llmm hru 34 32 2 4mrm Particu laly valuable an longer electrical stickout procedues Large Wire Twanarc K225 Feeds twa 5 64 2 0mm 3 32 admi ar 1 87 3 27rn wires Tor sub merged art wekling ee Fast Ful jairits r r hardfacing beads Submerged Arc K381 High Codi Nozzle br L B 3 2mm thru 7 32 5 6mm diameter solid wire far use with the N 3 H 4 amp NA 5 Automatic Wire Drives Submerged Arc K386 Narrow Gap Nozzle tor 3 32 2 4mm diameter wire weld ing on thick walled steel plate with nearly parallel sided narrow gap joint preparations See S615 amp Inmershield K397 Automatic Gun amp Cable for 62 1 6mm thru 3 32 24mm diam Innershield electrode with fiexibility and maneuverability for robotic or automated fixture applic
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