Harbor Freight Tools DUAL MIG 93793 - Manual (Page 23)

Page 23 For technical questions, please call 1-800-444-3353. SKU 93793
crooked/wavy bead
pOSSIBle cauSeS anD SOlutIOnS
Stickout too long: 1.
Reduce stickout.
Inaccurate welding:
2.
Use two hands or rest hand on steady
surface.
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VIew
porosity
Small cavities or holes in the bead.
pOSSIBle cauSeS anD SOlutIOnS
Stickout too long: 1.
Reduce stickout.
Dirty workpiece or welding wire:
2.
Make certain that workpiece and wire are
both clean and free from oil, coatings,
and other residues.
Insufficient gas flow at weld:
3.
Increase flow of shielding gas.
Dirty nozzle:
4.
Clean nozzle by following the directions
in the cleaning section of this manual.
Wrong type of shielding gas:
5.
Use only the correct welding gas for the
application and wire.
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excessive Spatter
Spatter that is grainy and large.
Fine spatter is normal.
pOSSIBle cauSeS anD SOlutIOnS
Wire feeding too fast: 1.
Reduce wire feed speed.
Stickout too long:
2.
Reduce stickout.
Dirty workpiece or welding wire:
3.
Make certain that workpiece and wire are
both clean and free from oil, coatings,
and other residues.
Insufficient gas flow at weld:
4.
Increase flow of shielding gas.
Shielding gas being blown away from
5.
weld area:
Protect the weld area from drafts.
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StrIKe teSt
a test weld on a pIece OF Scrap can be tested by
using the following procedure.
Wear anSI GOGGleS DurInG thIS prOceDure.
After two scraps have been welded togeth- 1.
er and the weld has cooled, clamp one
scrap* in a sturdy vise.
Stay clear from underneath while you
2.
strike the opposite scrap with a heavy
hammer, preferably a dead-blow hammer.
A good weld will deform but not break.
3.
A poor weld will be brittle and snap at the
weld.
*this test WIll damage the weld it is performed
on. this test is OnlY an indicator of weld
technique and is not intended to test working
welds.