Lincoln Electric IM591 UWW-170 - 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
following conversions should be reviewed before
welding with (FCAW):
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.
5. Load wire into machine and thread into gun and
cable per “ Welding Wire Loading ” section.
REPLACEMENT PARTS
Complete Gun and Cable Assembly (Code 10488
and 10489 only)
L10738
Complete Gun and Cable Assembly (Code 10490
and above only)
L10744
Contact Tip .025 ” (0.6 mm)
S18704-1
Contact Tip .030 ” (0.8 mm)
S18704-2
Contact Tip .035 ” (0.9 mm)
S18704-3
Contact Tip .045 ” (1.2 mm)
S18704-13
Liner .023 - .030 ” (0.6 - 0.8 mm)
S18704-4 (Color coded Orange)
Liner .035/.045 ” (0.9/1.2 mm)
S18704-5 (Color coded Green)
Liner for Aluminum .040 (1.0 mm)
S18704-17 (Color coded Black)
Gas Diffuser
S18704-6
Gas Nozzle
S18704-7
Gasless Nozzle (Innershield Only)
S18704-14
SP 170-I