9
OPERATION
TABLE B.1
rePlace Parts list
Use of this unit on thicker materials than recommended may
result in welds of poor quality. The welds may appear to be
fine, but may lack the fusion or bonding necessary to give a
strong weld. This is called "Cold Casting" or "cold lapping"
and is some what similar to a cold solder joint. Weld failure
may result.
Contact Tip (.035”)
KH712 (.035” / 0.9MM)
Drive Roll
KP4364-035
Nozzle
KH726
FCAW Wire
LINCOLN .035 NR-211-MP
WARNING
FC-90
Welding Wire
Contact Tip
Drive Roll
Horizontal: "Drag"
Tee Joint
Maintain an electrode Stickout
of 3/8" while welding.
Wire Feed
Tension
.035 (0.9mm) - Lincoln Part No. KH712
0.9mm Knurled groove - Lincoln Part No. KP4364-035
The suggested Wire Feed Speed settings in the table below are based on a midrange wire tension
setting. The tension may be changed if required to improved wire feeding; however, the WFS setting may
have to be adjusted from the values in the table below.
Do NOT weave the arc, neither forward, backward, or sideways
16 Ga Steel
FCAW -Gasless (Flux Cored)
.035 Lincoln NR-211-MP (Innershield Cored Wire)
Heat Range
Wire Feed Speed
Loading The
Wire
Suggested
Settings For
Welding
Remember: Remove the contact tip prior to loading wire
Keep tension on the wire to prevent unspooling.
1. Cutoff the bent portion of the wire and straighten the first 4" for feeding into rolls and gun.
2. Release spring loaded pressure arm and rotate the Idle Roll Arm away from Drive Roll.
3. Thread wire through the guide tube, over drive roll and into gun liner. Close Idle Roll arm.
6
5
Steel Thickness
18 Ga Steel
6.5
7.5
6
7
8
8.5
R
Weld at a Steady Pace
8.5
14 Ga Steel
12 Ga Steel
8
Helpful Hints
1/8" Steel
For Horizontal Weld Joints, remember: "Drag if there’s Slag"
Refer to Manual for Troubleshooting Poor Weld Quality
Remove Slag with the Chipping Hammer to expose weld
Proper Gun
Angles for
common Weld
Joint Types
Direction of
Welding AND
Angle of Gun
relative to Weld
Direction
Electrical
Stickout
CONTACT TIP
ELECTRODE
3/8
Vertical Down
Butt Joint
Lap Joint
Vertical Up
45°
45°
