Re: series/parallel switch

Posted by jdemaris on April 12, 2005 at 20:28:12 from (209.23.29.88):

In Reply to: Re: series/parallel switch posted by Jon H on April 12, 2005 at 16:25:15:

In regard to the troublesome 24-12 neg-12 pos system that Delco built for Deere. Deere lacked confidence in the capabilities of 12 volt starters at the time for use in diesels. So, they used the covoluted system. It would of been much more reliable with the series-parallel switch or, just a straight 24 volt system all the way. But, now - to install the switch into a tractor almost would not be worth the effort. I guess you could install a ground into the starter and make it a conventional 24 volt unit. You'd then have to rewire half the 12 volt system, since 1/2 the tractor is 12 volts positive ground, and the other half 12 volts negative ground. And, once you've got it all with the same polarity, you need to install - I assume - a 12 volt alternator. Seems after all that, it would be just as well to just make the whole thing 12 volts and be done with it.
On a slightly different note, I've been thinking of installing such a switch on some of my 6 volt tractors that I use in the winter. I'd like to keep them somewhat original (6 volt generator and lights), but they're pretty hard to get started when it's 20 below zero F. I've been cheating and just sticking in 12 volt batteries every winter. They start great that way. I pull the light fuse out, and unhook the charging system. No big deal, but I have to charge the batteries once in awhile. Every spring, I put the 6 volt batteries back in and hook everything up again. But, maybe putting the switch in and dual 6 volt batteries is just as convoluted as changing over to a full time 12 volt system - we'll see.

Follow Ups:

• Re: series/parallel switch Jon H 07:16:47 04/13/05 (0)

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