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-- I have a 200 amp ultra mig micro controlled welder with the port for the hand held aluminum spool gun. I was given it before a good friend of mine that owned a transmission shop passed away, that he bought off the Mac Tool Truck. It was not used very much at all. He bought it to do modifications on his personal truck. I took it home , which was only 3 miles from the shop that he owned. I know it worked before I got it and was very careful transporting it to my house. After getting it home I hooked it up to a 50 amp breaker in its own dedicated fuse box. After plugging it in I was not getting any power to the main touch controls on the front of the welder. They are touch , pressure buttons, not mechanical controls on the front of the machine. There are no mechanical buttons on the front. I am getting power to , and thru the transformer , up to the circuit board. I am not getting power to the hand held wire feed. I havent hooked up the alum hand held spool gun. The main wire feed , not the alum hand held gun, has no power and doesn't even click like it wants to work. I have checked the fuse on the left side under the main rollers that feed the wire to the gun and it is good. There is a large diode above the transformer and two large capacitors on the left of the transformer. None of the mentioned components looked blown or burnt, as they will normally look, when this type of component fails. Any help would be appreciated. I contacted Mac but don't believe that I will get assistance from them due to me getting the welder after the original owner who purchased it passed away. Robbie Attached Images
Reply:I wouldn't know where to start with that machine, but it really says something about the company who sold it if they refuse to give technical assistance to anyone but the original purchaser of the machine.Just another reason I'll never buy tools from a salesman off a tool truck.Century may have been the manufacturer of the machine. MAC, Snap On, etc all sell rebranded welding machines, many of which are made by Century. IIRC, Lincoln Electric is their parent company. You could try giving either of them a call and if they did manufacture it, be sure to tell them how great MAC tools treated you because you didn't enrich one of their own salesmen by receiving possession of this welder.Wish I had better advice. You may want to retrace the power connections and insure they are correct from the supply at the wall to the welder. Check to where the power comes into the machine with a meter and see if you're getting 230 VAC to wherever the cord connects. It may be something simple. Beyond that, I would need a schematic to take a shot at it. I highly doubt it, but if there are jumper links in the machine, make sure they're set to 230 VAC and not something else. Century machines, for the most part, are light duty rated units and not as robustly made as their US assembled counterparts (Lincoln, Miller, etc) For what the tool truck salesmen rape ppl for them, it's nothing short of a tragedy for what you get for how much you pay. IMHO of courseExpert Garage Hack....https://www.facebook.com/steven.webber.948
Reply:You say it has power, but does it have the correct power?You'd be amazed how many guys get machines and don't realize they were wired up for an "odd" voltage like 208v or 440v power, especially if they come from an industrial shop of some sort vs someones home. There have also been plenty of guys who swear everything is "correct" about their installation, only to find out later that they miswired the outlet and were only getting 110v power to the machine vs the 230v power they thought they would.Very 1st thing I would check is to take a meter to the hot prongs on the outlet and verify you have 220-240v between the 2 hots. Hot to ground won't count because if you are drawing power from the same leg at the panel, you will still get 110-120v hot to ground on both sides, but you get 0v hot to hot.#2 would be to check and see if there are any jumpers that need to be set on the machine for incoming power, and double check they are set properly..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:I agree with DSW. Make sure it is not a 3 phase machine. If you plug a 3 phase into a single phase plug, they will sometimes partially power on.
Reply:It's not three phase. Pretty darn sure on that. Many of these types of machines were made by Century and are classified as light industrial use units. I wouldn't be surprised if it was 230 VAC only.I'm betting on incorrect wiring from supply to the welder. Being it's not an inverter, some systems should power up when it's turned on. I would also check for any reset breakers or fuses in the machine. Like Doug said, trace from the supply point to the welder, then start from the load side of the machine and see where and how far power is getting from there.If the problem is in that touch panel, I would just push it in a corner and buy another welder. It's not worth repairing and even if parts were available, a complete quality used machine from Miller, Lincoln or Esab could probably be purchased for a comparable cost.Expert Garage Hack....https://www.facebook.com/steven.webber.948
Reply:When I see those machines I think of the beautiful containers they fit best in........usually square steel, have a plastic cover and a lot of time say Waste Management.Sorry I cannot help you fix your machine.Does it look like this?http://www.amh.ca/english/mig200.htmlLast edited by vwguy3; 04-17-2015 at 09:12 AM.
Reply:I wonder who actually makes that machine? I was thinking Century. They make that Snap On MIG and other stuff for them IIRC.I think Systematics may have done a few for the tool truck companies too. They manufacture the spool gun for the Muscle MIG as well for several other brands.Expert Garage Hack....https://www.facebook.com/steven.webber.948
Reply:I thought Century made the small Snap On machines and Systematic made the larger ones. A friend of mine has a 250 amp Snap On made by Systematic and whoooo eeee what a piece of dung.I wish tool trucks sold tools and welding suppliers sold welders......but that's just me
Reply:Yeah. Dont get me going on the tool truck salesmen. I have a pretty seething hatred for any company that forces you to purchase their stuff exclusively thru commissioned salesmen. Then, their welding machines are light duty junk that's insanely overpriced.I like how MAC tools touts itself as "The Future Of Welding" on that paper label inside the machine IMHO of courseExpert Garage Hack....https://www.facebook.com/steven.webber.948
Reply:Originally Posted by 7A749I like how MAC tools touts itself as "The Future Of Welding" on that paper label inside the machine IMHO of course
Reply:Most times microprocessor controlled welders will have a seperate power supply to run the electronics. Typically the power supply is in the order of 5VDC, which is pretty standard to run a microprocessor, display, push button inputs etc. This can be a really simple fix. Again, typically it will use a 3 terminal voltage regulator; they have a tendancy to die off, as well as the capacitors which filter the input and output. They look like this:https://www.fairchildsemi.com/datasheets/LM/LM7805.pdfIf you provide a link to a schematic I can take a look at it for you. I just don't have the time to dig it up. I'll bet it's out there if you look.Chay
Reply:Originally Posted by vwguy3They very well may be the Future of Welding......as sad,sittin in the rain, pooped my pants kind of future |
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发表于 2021-8-31 22:38:57