Lincoln Electric IMT821 HANDY CORE - Manual (Page 18)

B-7
OPERATION OPERACIÓN FONCTIONNEMENT
Table B.1 is on the inside case door of this machine for quick
reference of welding procedures.
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. KP2243-035
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.
3 Low - 2
Steel Thickness
18 Ga Steel
3
3
Low - 2
High - 1
High - 2
High - 2
REPLACEMENT PARTS LIST
Use Genuine Lincoln Parts for Optimum Performance
Contact Tip (.035")
Weld at a Steady Pace
4
14 Ga Steel
12 Ga Steel 4
Helpful Hints
Drive Roll
KH712 (.035" / 0.9 mm)
KP2243-035
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
Warnin g
Nozzle
FCAW Wire
KH726
Lincoln .035 NR-211-MP
Warnin g
When the welding power source is on and the gun trigger is
depressed, drive rolls, wire reel and electrode are ELECTRICALLY
HOT.
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
ELECTRODE 3/8
Vertical Down
Butt Joint Lap Joint
Vertical Up
45¡ 45¡
TABLE B.1
45° 45°