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5. Hold wire and cut the wire end from spool. Do not allow wire to unravel. Be sure end of wire is straight and free of burrs. 6. Feed wire through wire feed guide tube, over the groove in drive roller and into gun liner. Flip tensioning screw up and adjust tension by rotating 4 Wire Feed Arc Welder Installation LOCATION Selecting the proper location can significantly increase performance, reliability and life of the arc welder. For best results locate welder in a clean and dry environment. Dust and dirt in the welder retain moisture and increase wear of moving parts. Place welder in an area with at least twelve inches (305 mm) of ventilation space at both the front and rear of unit. Keep all obstructions out of this ventilation space. Store welding wire in a clean, dry location with low humidity to prevent oxidation. Use a properly grounded receptacle for the welder and ensure welder is the only load on power supply circuit. Refer to chart on page 1 for correct circuit capacity. Use of an extension cord is not recommended for electric arc welding machines. Voltage drop in the extension cord may significantly degrade performance of the welder. Assembly BOTTLE RETAINER ASSEMBLY Attach bottle retainer to welder as shown (Fig. 2). WIRE INSTALLATION NOTE: Before installing welding wire, be sure: a. Diameter of welding wire matches groove in drive roller on wire feed mechanism (See Fig. 3). The drive roller is marked with metric sizes: .6mm = .024”, .8 - .9mm = .030 – .035” b. Wire matches contact tip in end of gun. (See Fig. 4). A mismatch on any item could cause the wire to slip and bind. NOTE: Always maintain control of loose end of welding wire to prevent unspooling. 1. Verify unit is off and open door panel to expose wire feed mechanism. tensioning screw knob. Do not over tighten. 7. Remove nozzle by turning counterclockwise, then unscrew contact tip from end of welding torch (See Figure 4). Plug welder into a proper power supply receptacle. 8. Turn on welder and set wire speed rate to 10. Activate gun trigger until wire feeds out past the torch end. Turn welder off. 9. Carefully slip contact tip over wire and screw tip into torch end. Install nozzle by turning clockwise (See Figure 4). Cut wire off approximately 1/4 inch from nozzle end. DUTY CYCLE / THERMOSTATIC PROTECTION Welder duty cycle is the percentage of actual weld time that can occur in a ten minute interval. For example, at a 20% duty cycle, actual welding can occur for two minutes, then the welder must cool for eight minutes. Internal components of this welder are protected from overheating with an automatic thermal switch. A yellow lamp is illuminated on the front panel if the duty cycle is exceeded. Welding operations may continue when the yellow lamp is no longer illuminated. Figure 2 - Bottle Retainer Assembly Spindle Welding wire Tensioner ring Tension spring Retainer Tensioner knob Guide tube Tensioner arm Drive deck Roller support Drive roller Figure 3 - Weld Wire Routing 2. Remove cover screw and polarity cover. 3. Remove four nuts from polarity studs. 4. Pull out polarity bus bar and rotate it 90°. Reinsert aligning groove with the correct rib in polarity box. Upper right rib marks the MIG position; lower right rib marks the Flux position. (See Figure 4c.) 5. Reinstall four nuts and tighten securely. 6. Reinstall polarity cover and cover screw. 7. Make sure arrow on polarity cover points to desired setting. Assembly (Continued) POLARITY MIG welding wire requires electrode positive electrical polarity. Flux welding wire requires electrode negative electrical polarity. The welder is factory set for flux welding wire. To Change Polarity (See Figure 4b) NOTE: The arrow on the Polarity Cover points to the current polarity setting. TOOLS NEEDED: Phillips screwdriver and 10mm socket wrench. 1. Unplug power cord from socket. 40 Sp 1 Ensamble del soplete y la manguera (MIG, 2,44 m, WG2060) WC403660AV 1 Ensamble del soplete y la manguera (MIG, 3,05 m, WG2064) WC404100AV 1 2 Punta de contacto - 0,035” (0,9 mm) WT501400AV 1 Punta de contacto opcional – 0,024” (0,6 mm) Paq. 4 WT501200AJ † Punta de contacto opcional – 0,030” (0,8 mm) Paq. 4 WT501300AJ † Punta de contacto opcional – 0,035” (0,9 mm) Paq. 4 WT501400AJ † 3 Boquilla WT502100AV 1 4 Portabobinas WC500805AV 1 5 Ensamble de la placa de conduccion WC500800AJ 1 6 Vastago y rejilla WC707018AV 1 7 Reten de la bobina WC707024AV 1 8 Resorte del reten de la bobina WC707026AV 1 9 Anillo del reten de la bobina WC707023AV 1 10 Alambre de soldar con fundente – 0,030” (0,8 mm) Bobina de 2 lb. (0,9 kg) (E71T-GS) WE200001AV † Alambre de soldar con fundente – 0,030” (0,8 mm) Bobina de 10 lb. (4,54 kg) (E71T-GS WE201000AV † Alambre de soldar con fundente – 0,035” (0,9 mm) Bobina de 2 lb. (0,9 kg) (E71T-GS) WE200501AV † Alambre de soldar con fundente – 0,035” (0,9 mm) Bobina de 10 lb. (4,54 kg) (E71T-GS) WE201500AV † Alambre de soldar MIG – 0,024” (0,6 mm) Bobina de 2 lb (0,9 kg) (ER70S6...

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