View Full Version : HH 187 question sort of.
Dog Byte
05-04-2007, 02:01 AM
Hi Guys. I haven't had a chance to use my new 187 much yet, but I did try it briefly on
a piece of scrap, and it seemed like I had to crank it up pretty high to get any results.
Today I was welding up a bracket at work with a machine that has an amperage meter
on it. I noticed it was pulling 200 A. I was welding 3/16, and 1/4 angle. So I was thinking
my 187 would have trouble with 3/16, and would have to be cranked up.
How many of you 187 owners have found the recommended settings to be accurate? I may
have been running the machine at work kind of hot, but I got good results from it.
MAC702
05-04-2007, 02:24 AM
What extension cord, process, shielding gas, wire, polarity, and settings were/are you using?
With C-25 and an .030 or .035 solid wire ( ER70S-6) V tap #5 or #6 on the HH 187 offer plenty of power for 3/16" applications. Heck, a vertical up will require you to use Tap 3 # or #4- can't remember which one right now.
If your unit was truly outputting 200 amps, you were more than likely over welding 3/16"- to large of a weld.
Dog Byte
05-04-2007, 02:41 AM
Like I said, I haven't done much but run a bead on some scrap, but I was using the
flux core wire that came with the welder. I did buy a gas bottle, but I need to find a cart
before I implement it. I have it plugged directly into the outlet, the polarity is dcen, wire
size is .030. I was welding 1/8" scrap (lap joint) and I think I had it on tap 6.
Clay Walters
05-04-2007, 07:31 AM
With the fluxcore it came with I found the settings dead on. With .030 solid and C25 I'm pretty sure I was using tap 6, WS 95 on 3/16 last night. Seems like that was just a tad faster on the WS than the door chart recommended.
As to a cart, one of these work great with Hobart Handlers:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=90305
I went on an made my last one just to do a project and there are some neat examples if you'll do a search for BDC carts. Truly, were I to do it over again I'd just get another of those HF carts when its on sale and get to making sparks though.
Regards,
Clay
Like I said, I haven't done much but run a bead on some scrap, but I was using the
flux core wire that came with the welder. I did buy a gas bottle, but I need to find a cart
before I implement it. I have it plugged directly into the outlet, the polarity is dcen, wire
size is .030. I was welding 1/8" scrap (lap joint) and I think I had it on tap 6.
If you have the wire speed set close to were it should be to run the wire properly for tap #6, the weld should be extremely hot for 1/8", to the point were burn thru would be a very possible issue.
This is assuming your input power is correct, and nothing is wrong with the unit.
Dog Byte
05-04-2007, 11:19 AM
Thanks. Has anyone had a problem with the wire burning back into the tip?
schredder
05-04-2007, 02:52 PM
As to a cart, one of these work great with Hobart Handlers:
http://www.harborfreight.com/cpi/ctaf/displayitem.taf?Itemnumber=90305
I went on an made my last one just to do a project and there are some neat examples if you'll do a search for BDC carts. Truly, were I to do it over again I'd just get another of those HF carts when its on sale and get to making sparks though.
Regards,
Clay
Thanks for the tip... as I was planning on fabbing a cart for my HH 187. My only concern is the 100 pound rating... the 187 weighs 68 lbs. and I have a 80 CF gas cylinder that weighs about 50 lbs.. so 118 lbs. total. Any thoughts on this possibly over loading the cart? Or is the cart possibly underrated for its weight capacity?
Thanks,
Chris
HH One-Eight-Seven
Clay Walters
05-04-2007, 02:58 PM
Schredder,
I suppose its possible about the weight rating but once its all bolted together it handled my HH175 and 80cuft bottle perfectly. I did cut a piece from an old floormat to raise the welder up a tad so the door would clear the tray. Otherwise it was fine. The main reason I made my own when I upgraded to the 187 was because I wanted to have two bottles on the back.
DB, your wire may be slipping. Check your roll tension to be sure its just tight enough to keep the wire from uncoiling when stopped and your drive tension tight enough to not slip in the rollers without being so tight as to deform the wire. Other than that, make sure the tip is sliding on the wire smoothly and if not, replace it or buff it out. (They make handy little tools for that.) If all that is ok you're either running too hot or wirefeed too slow.
Regards,
Clay
Mikboo
05-04-2007, 05:24 PM
I just put some 330 LB wheels from HF for $3.50 on the cart and it works fine..
also used one for my Tigmate... but moved the wheels out about 4" not so easy to tip over... added alittle iron here and there.
Dog Byte
05-04-2007, 05:38 PM
I went on an made my last one just to do a project and there are some neat examples if you'll do a search for BDC carts. Truly, were I to do it over again I'd just get another of those HF carts when its on sale and get to making sparks though.
I have an old convertible hand truck thing I think I will convert to a mig cart,