Lincoln Electric IM537 SP-170T - Manual (Page 33)

C-2 C-2 ACCESSORIES
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.
REPLACEMENT PARTS
Complete Gun and Cable Assembly
L8311-6 (K530-4)
Contact Tip .025” (0.6 mm)
S19726-1
Contact Tip .030” (0.8 mm)
S19726-2
Contact Tip .035” (0.9 mm)
S19726-3
Contact Tip .045” (1.2 mm)
S19726-4
Contact Tip-Tapered .025” (0.6 mm)
S20278-1
Contact Tip-Tapered .030” (0.8 mm)
S20278-2
Contact Tip-Tapered .035” (0.9 mm)
S20278-3
Contact Tip-Tapered .045” (1.2mm)
S20278-4
Liner .023 - .030” (0.6 - 0.8 mm)
M16291-2
Liner .030/.035” (0.8/0.9 mm)
M16291-6
Liner .035/.045” (0.9/1.2 mm)
M16291-1
Gas Diffuser
S19728
Gas Nozzle
M16294
Gas Nozzle-Tip Recessed 3/8” (9.5 mm)
Opening I.D.
M16684
Gas Nozzle-Tip Recessed 1/2” (12.7 mm)
Opening I.D.
M16684-1
Gas Nozzle-Tip Recessed 5/8” (15.9 mm)
Opening I.D.
M16684-2
Spot Welding Nozzle
M17846-1
Gasless Nozzle (Innershield Only)
M16418
SP-170T