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Belco Scott gas powered welder


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Old 01-17-2015, 11:27:07 PM
F. Moore F. Moore is offline
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Default Belco Scott gas powered welder

I have a 200D Scott welder made by Belco here my farrier dropped off for me to take a look at. It runs but when you try to strike an arc it just sticks the rod. He's had the alternator off and checked as well as the voltage adjust pot. I'd like to find a wiring diagram or info it before I start taking a shot in the dark and unsoldering the diodes checking them.
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Old 01-17-2015, 11:36:25 PM
F. Moore F. Moore is offline
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Default Re: Belco Scott gas powered welder

Here's a picture of the data plate. I cannot get the rest of the picturse to load.
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Old 01-18-2015, 11:20:41 AM
RSCurtis RSCurtis is offline
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Default Re: Belco Scott gas powered welder

Be sure the drive belts(s) are tight.
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Old 09-12-2015, 09:44:47 PM
zombierspndr zombierspndr is offline
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Default Re: Belco Scott gas powered welder

I know this is an old thread, but as far as I know, they used a standard Delco alternator on those. I would check the open circuit voltage and then the rectifier diodes. If it's not the diodes, then the rotor or stator may be shorted. It's possible to have a shorted set of windings in the stator and the alternator still produce power....just not as much as it should.

I've never been able to examine a scott welder in person, but from what I understand from reading about them is that they're very similar to "weldernator"(google it) conversions of 10 and 12si Delco alternators. I'm not educated enough to tell you if those alternators are factory(Delco) wound in Wye(most likely) or Delta configuration, but Scott probably used Delta wound to get higher amperage and lower open circuit voltage for safety.
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