Lincoln Electric IM794 manual Innershield Fcaw Conversion, Replacement Parts

C-2 ACCESSORIES C-2

INNERSHIELD (FCAW)

CONVERSION

Several changes are needed to convert the unit for operation with the Innershield (FCAW) process. The K549-1 or K549-2 Innershield Kits include all the nec- essary accessories for this conversion and are provid- ed for this purpose. The following conversions should be made using the contents of this kit:

1.Change the output polarity to DC(–). See “Work Cable Installation” in Installation section for details.

2.Install proper drive roll for the wire size selected. See “Changing Drive Roll” in Maintenance section for details.

3.Install the proper gun liner(*)and tip for the wire size selected. See “Component Replacement” in Maintenance section for details.

4.Remove gas nozzle (if installed) and install gasless nozzle. To remove, simply unscrew.

5.Load wire into machine and thread into gun and cable per “Welding Wire Loading” section.

*The factory installed gun liner will feed .025-.035 (0.6-0.9mm)

REPLACEMENT PARTS

Complete Gun and Cable Assembly (K530-4)

Contact Tip .025” (0.6 mm)

KP2039-1

Contact Tip .030” (0.8 mm)

KP2039-2

Contact Tip .035” (0.9 mm)

KP2039-3

Contact Tip .045” (1.2 mm)

KP2039-4B1

Contact Tip-Tapered .025” (0.6 mm)

KP2052-1

Contact Tip-Tapered .030” (0.8 mm)

KP2052-2

Contact Tip-Tapered .035” (0.9 mm) KP2052-3

Contact Tip-Tapered .045” (1.2mm)

KP2052-4B1

Liner .030/.035” (0.8/0.9 mm)

KP1937-3

Liner .035/.045” (0.9/1.2 mm)

KP1937-1

Gas Diffuser

KP2040-1

Gas Nozzle

KP1938-1

Gas Nozzle-Tip Recessed 3/8” (9.5 mm) Opening I.D.

KP1942-1

Gas Nozzle-Tip Recessed 1/2” (12.7 mm) Opening I.D.

KP1942-2

Gas Nozzle-Tip Recessed 5/8” (15.9 mm) Opening I.D.

KP1942-3

Spot Welding Nozzle

KP1956-1

Gasless Nozzle (Innershield Only)

KP1939-1

SP-170T