[AT] 24 volt Deere's

[Tom]

Hi Cecil
           Last century I used to run a fleet of Mercedes Benz trucks that used the 12/24 volt system.
           Was very reliable and battery life was very good. It seems the secret lies in the series/parallel
           switch which was of this style:http://tinyurl.com/ll48fm9
           Rather pricey though. :-(

           However I see there are cheaper ones:http://tinyurl.com/mywg7rr
           that's the Delco style, is that what you have? I've come across them on Kenworths.

Tom

           

           

 


 Cecil R Bearden <crbearden at copper.net>

To: Antique tractor email discussion group <at at lists.antique-tractor.com> 
>Sent: Thursday, 31 October 2013 1:58 AM
>Subject: Re: [AT] 24 volt Deere's
> 
>
>I have one of those bastard systems on a 62 model 4010 I use on a feed 
>tractor.   We spent hours trying to get this tractor to start over the 
>years.   We tried a series parallel switch and it burned up in a month.  
>We bought a 12 v starter from a rebuilder and installed a 12v Delco 
>alternator and it still would not start in cold weather.   Finally I 
>ordered a starter from NAPA for about $350 and built a 12V Delco 
>alternator and since it had a loader on it, I fabricated a bracket for 2 
>group 31 batteries and threw away those slimline batteries that were 
>made for 59 Ford cars!!   The tractor would start in any weather.  The 
>starter was high as we got it from NAPA, the highest priced parts house 
>in OK...    I would look up DB electrical on EBAY and call them for 
>their recommendation on a gear reduction starter.  Then you should use a 
>12V delco alternator and build it with the highest amperage you can 
>get.    If you really want to keep it original,  find a 24V generator 
>and regulator, and wire the batteries to  have one battery run the 12V 
>accessories and the other one only used when starting.  The problem is 
>with that 12V neg and 12V positive windings in the generator and the 
>regulator that has to go with it.  A 24V system is ok, You could save 
>your starter if you can find a 24V generator.  Or get a 12V delco 
>alternator and install a 24V regulator.  DB electrical can explain it 
>better than I can in an Email.   What ever you do if you want it to 
>start, get rid of that generator and regulator combination. I just get 
>red in the face when I think of all the hours and money we spent trying 
>to get our tractor to start with that old system. Deere should have been 
>required to issue a recall on that system.
>Cecil in OKla
>
>On 10/29/2013 10:52 PM, Al Walker wrote:
>> My 1961 4010 has that battery set up.  Never have been positively impressed
>> by it.  Batteries don't last long for me either.  I've thought about
>> converting to a straight 12 volt system, but no one seems to give those
>> starters or generaters away inexpensively.  The kits I've seen are in the
>> $750 range.  I can buy a few batteries for that amount.
>>
>> Al in NW MN
>>
>>
>>
>>
>>
>