Voltage Regulator Test?
 

Is there any way to bench test a voltage regulator?

I assume you're referring to a voltage regulator for a starter/generator.

On Bench testing;

https://www.onlycubcadets.net/forum/...536#post317536

Good reading;

https://www.onlycubcadets.net/forum/...559#post315559

and;

https://www.onlycubcadets.net/forum/...017#post180017

Starting on page 1 - 31;

http://ccmanuals.info/pdf/1x6-7%20Service%20Manual.pdf

and;

http://www.ruiter.ca/mc/info/PDFs/1R-116.pdf

Good luck! :ThumbsUp:

Yes, it would be for a starter generator. Unless I missed it, I don’t see anything about testing in your links, just adjusting.

Sorry, that's all I got.

No problem, hopefully someone else will know.

Ive never seen a bench test procedure for one. However, you could put it in a tractor with a know to be good harness and SG and follow the normal test routine if need be.

You certainly could put it on the bench and check connections, test continuity, check contact closure etc. A real bench test would require a generator or something to simulate the generator.

A local starter/alternator shop around here can test a generator and it's regulator using a test jig and an electric motor turning the generator, I've seen them do it.

It is probably a home brew rig, but I can't imagine this little shop is the only one with the capability.

Thanks for the replies. It’s not a big deal, I have a VR from a parts tractor that I wanted to test. I guess I’ll find out if it’s any good the next time I need to replace one.

This guy does a bench test.

In general, the field contact is normally closed and grounded until the gen terminal has over 14.5 volts, at which point it opens.

The bat to gen contact is normally open until about 9 or more volts is present on the gen terminal, at which point that contact closes.

https://www.youtube.com/watch?v=5ngzb_Avfkk&t=49s

Good video.........IF..........one has a Variac Power Supply.