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Once the tension is properly adjusted, the quick release drive tensioner may be
unlocked and relocked without readjusting the drive tension adjustment knob.
The wire drive tension will require a reset if the diameter or type of welding
wire is changed.
OPERATION
IMPORTANT! Metal thinner than 18 gauge cannot be welded with this machine.
Attempting to do so will cause burn through (blowing holes) in the metal you are
intending to weld. The maximum steel thickness that shoudl be attempted is 1/4 in.
CHOOSE A WELDING LOCATION
Selecting the proper location to use the welding unit can significantly increase
the welding unit' s performance, reliability and lifespan.
Locate the welding unit in an environment that is clean and dry. Place the
welding unit to ensure free circulation of air around all sides of the welding
unit. Dust and dirt can accumulate on the moving parts of the welding unit.
Debris can retain moisture and that can increase wear for moving parts.
The power outlet used for the welding unit must be properly grounded and the
welding unit must be the only load on the electrical circuit. See Power
Requirements in the Installation section.
Turn the welding unit OFF before plugging into appropriate 120 volt 20 amp
power outlet.
The use of an extension cord is discouraged for arc welding machines. Extension
cord use will significantly degrade the performance of the welding unit.
PREPARING THE MIG GUN/TORCH
The MIG gun or torch will require cleaning and preparation before each use.
Any previous welding will leave carbon deposits and molten bits on the nozzle
and welding tip. The metal beads and carbon deposits will disrupt the shielding
gas flow from the nozzle, resulting in uneven protection of the weld puddle.
The debris may also cause the nozzle to overheat and melt or distort the
welding wire before it reaches the weld point.
1.
Remove the nozzle and inspect for molten beads inside the nozzle and on
the end.
2.
Insert closed welding pliers into the rear end of the nozzle and rotate the
pliers to scrape off the metal beads.
3.
Clean the carbon deposits on both the nozzle and welding tip with a cloth.
The metal should shine. Discard and replace the nozzle or welding tip if
the deposits or beads cannot be removed.
18
90A Flux Core Welder
For technical questions call 1-800-665-8685
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