lincoln mig welder

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hi new to the forum really enjoy surfing threw the posts some great info and some very skilled and talented people here,have a mig welder in work cant figure out the amperage being used or voltage because the dials only say coarse and fine does any one know how this works? or am i missing something on the machine [il try post a cople of pictures of machine] as i want to be able to tune the machine to its sweet spot, and get the best out of the welder,i have only really gottin back into welding in the last few months, i am a novice welder but i have the bug now and am trying to get better. Attached Images
Reply:the sweet spot is going to depend on what your welding. in combination with the possition you're welding in, and the wire/gas combo you're using.There are no problems. There are only solutions. It's your duty to determine the right one.Hobart Handler 210Airco 225 Amp MSM Stinger
Reply:I agree with Thor on where the sweet spot will be, that's why the knobs to adjust the machine to varying conditions. If there were one "SweetSpot" then it would most likely be locked in at the factory with no adjustments. That bottom machine looks like it might be capable of stick welding. It might help to get a Clear picture of the chart at the bottom of that, and a Clear picture of the front of the wire feed rig, close enough it can be read. The way things are going today,I have a feeling you may want to start buliding a trailer with this rig. I hope not, I'm running out of pocorn.Last edited by Bistineau; 01-25-2012 at 07:46 PM.
Reply:Try doing a Google search for your specific machine and see if you can locate the user manual/owner manual...... it would have all the specs and might also have some useful user information.good luck,mike
Reply:I am going to ASSume they are a set.  Put the knobs on the bottom machine in the middle.   Start to weld on some 1/4 or bigger plate.  Turn the knob on the top machine until it welds smooth.   This will at least get you going.Next would be turn the wire feed all the way up, run it for 15 seconds.   Measure the wire it pushed out.   Use these numbers to figure out inches per minute at max.    5 on the knob should be 1/2 that etc.......Once you know that and your wire size you can start to figure out how many amps you are welding with.  Knowing that and your plate thickness, you can set the wire speed for the amps you want and adjust the voltage for a good weld.  Clear as mud?DavidReal world weldin.  When I grow up I want to be a tig weldor.
Reply:Originally Posted by mikeeTry doing a Google search for your specific machine and see if you can locate the user manual/owner manual...... it would have all the specs and might also have some useful user information.good luck,mike
Reply:Originally Posted by David RI am going to ASSume they are a set.  Put the knobs on the bottom machine in the middle.   Start to weld on some 1/4 or bigger plate.  Turn the knob on the top machine until it welds smooth.   This will at least get you going.Next would be turn the wire feed all the way up, run it for 15 seconds.   Measure the wire it pushed out.   Use these numbers to figure out inches per minute at max.    5 on the knob should be 1/2 that etc.......Once you know that and your wire size you can start to figure out how many amps you are welding with.  Knowing that and your plate thickness, you can set the wire speed for the amps you want and adjust the voltage for a good weld.  Clear as mud?David
Reply:It looks like you have one knob on the wire feed which should be your wire speed.  Down on your powersource you have the course and fine.  Imagine it this way:  say each knob on course is 5, 10, 15, 20, 25 volts.  then the fine knob will tune you in to 6,7,8,9 volts and the same for the rest of the notches.
Reply:I have to disagree with cd19.   The corse knob is low to high, but not 5 volts to 25 volts.   We weld as low as 15 volts and high as twenty something for short arc.  I can't tell, but if 3 is too  much and 2 is not enough, then the fine comes into play.No welding would be done at 5 volts.   Average for a hundred some amps would be in the seventeen to nineteen volt range depending on gas.The fine should be a trim for the coarse.    Coarse on 3, fine on high should be similar to coarse on 4 and fine on 1. make any sense at all?DavidReal world weldin.  When I grow up I want to be a tig weldor.