Re: Has John Deere ever had a first?

Posted by jdemarisj on December 29, 2005 at 06:42:33 from (66.218.28.153):

In Reply to: Has John Deere ever had a first? posted by Andrew from KY on December 28, 2005 at 21:06:48:

I can think of a few things I saw first on Deere equipment - but I don't know for sure if Deere actually was the originator.
The automatic fuel cut-off valve that operates on engine oil pressure as used in the older two-cylinder tractors. I've only seen it on Deeres.
Another "innovation" was the 24-12neg-12pos electrical system - 24 volt starting - 12 volts neg ground for half the tractor and 24 volt pos ground for the other half tractor system that Deere used in the 3010s, 3020s, 4020s, etc. When I was sent to Deere service school to learn about those G*ddam systems, Deere told us they had it custom designed just for them by AC Delco.
One piece unitized engine sleeve deck as used in the 1010-2010 series and a few power units and combines that started around 1960.
Closed center, 2200 PSI standy hydraulic system - I saw it first in Deere tractors i.e. the 2510, 3010, 4010, etc. Maybe they copied it from somewhere else?

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