Posted by Gerald J. on April 03, 2010 at 18:32:34 from (75.253.232.172):
I had a little time at the university library last week. I found:
Since 1963, SAE standard J543a has stated "the negative terminal of the battery shall be securely grounded." Before that from a committee report in 1955 that new standard J543a stated "The negative terminal of the battery should be grounded." So before 1955 polarity was optional. From 1955 it was recommended the negative post should be grounded, and from 1963 the standard required the negative terminal to be grounded, though it took until at least 1969 for Deere to follow that standard in gas tractors.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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