Re: what is the difference ?

Posted by CNKS on July 08, 2007 at 13:57:28 from (204.249.178.32):

In Reply to: what is the difference ? posted by james in mo on July 08, 2007 at 13:37:42:

You may have to remove the cover. I started to say that a cutout relay had 3 terminals, and a regulator 4, but my parts book disputed that. But, the difference, or at least my understanding of the difference is that a cutout relay is either on or off, that is it either charges or not. A voltage regulator regulates the voltage. Thus the LHDB (low charge, high charge, dim, bright) on the cutout relay switch and the ODB (off, dim, bright) on the voltage regulator equipped tractors. The light switch on voltage regulator equipped tractors has nothing to do with charging, it is simply a light switch. In general, post 1949 IH tractors will have a distributer and voltage regulator. Pre 1949 will have a magneto and cutout relay. Magnetos were standard until sometime in 1949, distributers after that. Someone correct me. A magneto continued to be an option until 19??. Distributers were an option beginning in 19??. Usually the cutout relay, not the voltage regulator is mounted on the generator -- there are probably exceptions to this also, along with everything else I said.

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