Deere Dude
Elite Member
- Joined
- Feb 10, 2011
- Messages
- 3,886
- Tractor
- John Deere 3720
Does anyone have any idea why this 7018 H4R type of rod don't work on my AC welder? Are they DC rods by any chance? They were new almost and are 3/32 gauge.
I don't have any problem with 7014 from the store, and maybe a little with 6013, but these I can't strike an arc at all. Maybe a little sticking and a couple sparks is about all I get.
I used these rods at a school and they worked fine with their big welders by not on mine. It maybe easier just to throw them away and not worry about them, but I am puzzled.
I don't have any problem with 7014 from the store, and maybe a little with 6013, but these I can't strike an arc at all. Maybe a little sticking and a couple sparks is about all I get.
I used these rods at a school and they worked fine with their big welders by not on mine. It maybe easier just to throw them away and not worry about them, but I am puzzled.
... regular 7018 is a DC rod. but I have seen sheild arc use then on AC with good results.. course he could probably pick up a coat hanger out of the parking lot and use it too.:laughing:.. they make a 7018AC that is supposed to work well on AC, I have never tried any.. on 7108 you need to break the "corn" that forms on the end of 7018 off before ;you restrike them either use a rough file. or I just use my thumb to pop it off and make sure you can see the actual metal end of the rod. . What brand are these rods..? Not Harbor freight I hope.. Are you trying to strike an ARC too cold..? but I would not throw them away even if the flux was falling off of them.. Welding rod is good metal you can use for other things.