Question about Welding Tools
Hi, you have 2 big resistor with ajustable tab on it,check for visual damage on it and rusted connector or tab,
replace tab at same place if you disasemble it
Posted on Feb 22, 2014
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Posted on Jan 02, 2017
open inspection door,which also the fine tuner knob is ,there's a 2x4 size circut board that snaps out with little force to remove,this is the voltage regulator board,look for 4700 ohm resisitor burnt into,tv tech can fix or order new board at $227.00 what i paid.
Posted on Feb 04, 2009
check the ground ,make sure is tight.look around the machine and see if theirs a switch or a nob to turn from mig to arcweld...
Posted on Nov 26, 2009
Causes of poor penetration: Travel speed too fast, welding current too low,
poor joint design / and or preparation, electrode diameter too large,
wrong type of electrode, excessively long arc length.
Solutions: Decrease travel speed, increase welding current, increase root
opening or decrease rootface, use smaller electrode, use electrode with deeper
penetration characteristics, reduce arc length.
Posted on Jul 20, 2010
SOURCE: miller big 30 d wont weld
Probably your machines overloaded. Check your fuses F1 and F2 and if they are open replace them.
Both fuses are located at left hand side of machine, open it and you will find them on the bracket.
Check your owner's manual for more info about fuse replacement.
Posted on Aug 05, 2011
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