Lincoln Electric IM726 SP-175T - 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-175T