Lincoln Electric HANDY CORE Manuel De L'opérateur page 18

OPERATION
FCAW -Gasless (Flux Cored)
Welding Wire .035 Lincoln NR-211-MP (Innershield Cored Wire)
.035 (0.9mm) - Lincoln Part No. KH712
Contact Tip
Drive Roll 0.9mm Knurled groove - Lincoln Part No. KP2243-035
Remember: Remove the contact tip prior to loading wire
Keep tension on the wire to prevent unspooling.
Loading The
1. Cutoff the bent portion of the wire and straighten the first 4" for feeding into rolls and gun.
Wire
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.
The suggested Wire Feed Speed settings in the table below are based on a midrange wire tension
Wire Feed
setting. The tension may be changed if required to improved wire feeding; however, the WFS setting may
Tension
have to be adjusted from the values in the table below.
Steel Thickness
18 Ga Steel
Suggested
16 Ga Steel
Settings For
14 Ga Steel
Welding
12 Ga Steel
1/8" Steel
Weld at a Steady Pace
Do NOT weave the arc, neither forward, backward, or sideways
Helpful Hints
Remove Slag with the Chipping Hammer to expose weld
For Horizontal Weld Joints, remember: "Drag if there s Slag"
Refer to Manual for Troubleshooting Poor Weld Quality
Direction of Horizontal: "Drag"
Welding AND
Angle of Gun
relative to Weld
Direction
45¡
Proper Gun
45°
Tee Joint
Angles for
common Weld
Joint Types
Maintain an electrode Stickout
Electrical
of 3/8" while welding.
Stickout
OPERACIÓN
Table B.1 is on the inside case door of this machine for quick
reference of welding procedures.
TABLE B.1
Wire Feed Speed Heat Range
3 Low - 2
3 Low - 2
3 High - 1
4 High - 2
4 High - 2
Vertical Up
Vertical Down
Butt Joint Lap Joint
45¡
45°
CONTACT TIP
ELECTRODE
3/8
B-7
FONCTIONNEMENT
REPLACEMENT PARTS LIST
Use Genuine Lincoln Parts for Optimum Performance
Contact Tip (.035") KH712 (.035" / 0.9 mm)
Drive Roll KP2243-035
Nozzle KH726
FCAW Wire Lincoln .035 NR-211-MP
Warnin g
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.
Warnin g
When the welding power source is on and the gun trigger is
depressed, drive rolls, wire reel and electrode are ELECTRICALLY
HOT.