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Lincoln Electric WELD-PAK 90i MIG Manual Del Operador página 18

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WELD-PAK 90i
relative to Weld
common Weld
Remember: Remove the contact tip prior to loading wire
Keep tension on the wire to prevent unspooling.
Loading The
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.
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
Direction
Proper Gun
45°
Tee Joint
Angles for
Joint Types
Maintain an electrode Stickout
Electrical
of 3/8" while welding.
Stickout
Use of this unit on thicker materials than recommended may
result in welds of poor quality. The welds may appear to be
strong weld. This is called "Cold Casting" or "cold lapping"
and is some what similar to a cold solder joint. Weld failure
may result.
TABLE B.
Vertical Up
Butt Joint
Lap Joint
CONTACT TIP
ELECTRODE
WARNING
OPERATION
V ertical Down
45°
3/8

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