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I just got a pipeliner and ive been told that it needs to have 93 ocv and i checked and it has 60 right now. I adjusted the idle and it started to surge on low idle. I tried to adjust the carb adjuster and it didnt help any. Does anybody have any suggestions?
Reply:Start digging around here, everything you'll ever want to know about these old machines is right here. http://billswelderrepair.com/Engine-Drives.htmlDont pay any attention to meIm just a hobbyist!CarlDynasty 300V350-Pro w/pulseSG Spool gun1937 IdealArc-300PowerArc 200ST3 SA-200sVantage 400
Reply:Checking the OCV on a 200 is easy as long as you follow a couple simple rules. 1. have it on high-idle. That should be around 1500 to 1550 rpms.2. have the rheostat set on 100.Those two rules are important because leaving either one of them out and your reading won't be any good. lolReading your post about getting 60 volts OCV my first thoughts were you checked it on high-idle with the rheostat on about 35, not the needed 100. But then again - with all your talk about adjusting the "idle" and it not responding properly, makes me think you checked it without the engine on the required high-idle.Either way...... Please make certain you follow these 2 rules, then I will be assured your 60 volts OCV is correct. And if it is - then you've got some major problems in there. Problems I don't imagine I can help you with. lol And.... don't believe that it hast to be 93 volts. That is only what someone said they like it set at. You may not like it there. I've owned a couple old SA200 machines I weld pipeline for a living and have done it for nearly 35 years now (yes- xray union mainline work) and I've never liked a SA200 set on 93 OCV. But again please - that is only my preference and has nothing to do with you or your's. lolOCV is a reference, and thats all it is. Its a product of engine RPM's and the ability of your generator to put out the current. Change either and the reference OCV also change.OPEN CIRCUIT VOLTAGE means nothing when you start welding. Now its the ability of the engine to keep up with the load and the generator's ability to deliver the proper (required) amp to volt ratio on the end of the rod. Anything besides that means nothing to me. It either does it or it doesn't. No matter what the open circuit voltage reading was. Thats what I do - I weld with these things, not talk about what they do when their not. If the generator is weak or the engine can't keep up then yes you'll haft to come up on the rpm's which will increase the OCV, but when you drop the hammer on the machine the ocv's will be whatever they are while you're pulling the load (welding). Thats whats important - what it does then, not what it does when not welding. That is what we get paid for. That is why I've never liked a SA200 with a 93OCV. If I've got to run that much OCV then I've got something else wrong because at that much OCV I can't carry no metal (me) and if I can't do that then I can't keep up.The best SA200 I ever welded with ran an OCV of 89.5. I had no problems keeping up - ever - anywhere I welded with it. That means something. 93OCV and probably got too much drive to carry that much metal and it'll be concave. Blood and guts is the ability to carry a load of metal at low rpms and still have some crowd. 93ocv is arc force and drive. Concave and a specked up clear glass.Just my opinion man laterGood luck manLaterLast edited by slowhand; 03-30-2011 at 06:52 PM.
Reply:Today at work I asked my good friend and welding pardner what the OCV is on his 1967 SA200 he now has on his rig (he scrapped the burned-up 200G this winter). He said its about 88.5.I've welded with his 1967 Red face 200 and it welds pretty darn good. The bead was about 50 to 55 in decent space and the cap was about the same. It acted good to me when I tried it out last December. (my 200d conversion can kick its butt )See what I'm saying man. I've just given you over 78 years of combined pipeline welding experience in 2 replys and the both say 93 OCV ain't the rule. Its just what someone told you to do. lolWhat OCV you need is going to depend on what you weld like, what you weld on, and what you like and can handle. And what shape your machine is in...... Not what some guy likes his machine set to.Good luck manLaterLast edited by slowhand; 03-31-2011 at 07:21 PM.
Reply:Thx alot slowhand that hlpd alot I got it whipped now. I appreciate the input. |
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发表于 2021-8-31 22:08:25