amp/wire speed setup

Jeep_parts

Jeep_parts

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Joined
Nov 3, 2005
Location
Kernersville, North Carolina
just bought a hobart 187. after installing then gun, wire, gauges , gas i now need to set it up far as what amp/wire speed i need. i have the gas set at 20cfh like it tells me to put it at. im practicing on some 1/4 metal pieces that i have. can some one help me out?
 
tknopp said:
On 1/4 inch i use heat setting 4 and wire speed around 70.
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With a HH 187? Nah.

If you open the door on the machine, you'll see where they suggest to set your machine. For 1/4, I'd use tap 5/60-65 or tap 6 and the wirespeed at 70.
 
i maybe totally off on the correct wire that im using , i pulled it out of an old welder that i had used before. its an 2 lb. spool by Lincoln L-56 .025" should i buy some other wire like .024" by Hobart or what?
 
I use .030 for everything but covers.....

I use .045 for the Diff Covers but they are 3/8" thick.....Even with the Hobart we have I use .030......You can always adjust wire speed so you don't overheat.....
 
zj_95 said:
i maybe totally off on the correct wire that im using , i pulled it out of an old welder that i had used before. its an 2 lb. spool by Lincoln L-56 .025" should i buy some other wire like .024" by Hobart or what?
Click to expand...
The L56 is good wire but I think on of your issues is the wire size for your work. I've always had good results with the Hobart ER70S-6 in the .030 flavor. If you're doing 1/4", you should jump up in wire size.
 
the .025 wire will be good for your welder and even for the 1/4". the .030 wire will work just as good as well. between .025 and .030 is basically personal preference in the looks and style that you weld. try both and find one that suits you best or that is most readily available where you typically shop.

the Hobart ER70S-6 wire is the same as the L56 wire (rated as an ER70S-6 wire).
 
FWIW, I've always used the .030 wire (HH180) for everything but sheetmetal where it doesn't work as well for me. After assisting in a MAJOR tub repair a few years back, I'm pretty fond of the .025 wire for sheetmetal/bodywork (even though I absolutely SUCK on the later)... seemed much easier to weld w/o burning holes and didn't create as much vertical material to grind down.

While a semi-PITA to swap over, I keep a roll of .025 for light gauge welding, along with a roll of fluxcore for those "crap! out of gas on a Sunday" times.
 
You'll have to set the machine up for the 1/4" and "whip" the puddle onto the 1/16". This takes practice, so I suggest you do some test pieces first so you can get the feel for not burning through the 1/16". On 1/4, I'd run on tap 5 and the wirespeed on about 65. YMMV.
 
Yes there is... It's called your scarp metal pile. Try welding junk together before you weld the real stuff.....
 
on the 187 6 and 70 seem way too fast for 1/4" you'll blow through the 1/16 really quick, use the whip technique. If you dont have any scrap go to a junk yard u pull it and grab a fender or two and play with it. nThere is no replacement for practice on your machine.
When I ran 1/4 to 1/4 butt weld @ 1/8 bevel I ran 6 / 55 this morning on a bumper bracket.

Also are you running gas? You have one of the more versitile and popular home shop welders, learn it and enjoy it.
 
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