Longevity MIGWELD 250 MP User Manual
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MIGWELD 250 MP
• Fill the crater at the end of the weld to avoid a crack. One way to do this is to
dwell in the weld pool for a second at the end of the weld.
• Why Choose A Spool Gun?
• Spool Guns are recommended to be used while welding aluminum. There are
many benefits to using a spool gun on aluminum over your standard MIG torch,
which include:
• Using a spool gun prevents you from contaminating aluminum with a gun that
had been used with previous metals, ensuring the highest quality weld.
• Aluminum is more delicate of a metal. Spool guns have a far less distance to be
fed through, which means less chances of the aluminum kinking.
• Aluminum needs to expand as it comes out of the contact tip. The diameter of a
spool gun contact tip is much bigger than that of a MIG gun, giving the aluminum
the room it needs.
• Self-Shielded Flux Cored Welding Tips
• Pull torch away from you as you weld (Pull gun technique)
• Store your wire in a dry place free of contaminates
• Use a chipping hammer and wire brush to remove slag layer after weld is
complete
• You do not need shielding gas—Great for welding outdoors!
• You won’t be able to weld as thin of metals than would with normal MIG
welding.
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