[AT] 24 volt Deere's

[Tom]

That's the thing, Cecil, the series/parallel switches were that reliable I never 

felt a need to alter the system. Of course, the the trucks weren't as old as 

perhaps your tractors are. We replaced at around 500k miles or 5 years.

Tom




>________________________________
> From: Cecil R Bearden <crbearden at copper.net>
>To: Antique tractor email discussion group <at at lists.antique-tractor.com> 
>Sent: Thursday, 31 October 2013 6:29 AM
>Subject: Re: [AT] 24 volt Deere's
> 
>
>Both of those switches are good. The Delco is on my grader.   The Bosch 
>style is the same thing as used  on my two Belarus tractors.  Many 
>Belarus tractors have been changed over to one wire Delco alternators 
>instead of the original Marelli alternator.   On the Belarus tractors, 
>the starter is a 24V with everything else running on 12.   I have 
>changed some systems like these over to a 24V system, with one battery 
>supplying the power for all gauges and accessories.   The alternator was 
>changed to a 24V one wire delco.  This simplified the wiring and the 
>controls.  and kept the 24V starter.   A 24V starter cannot be beat for 
>cold weather.   By changing the regulator in the alternator to 24v and 
>connecting the accessories to the one battery, you can remove the series 
>parallel switch and the expense.
>
>Cecil in OKla
>
>
>On 10/30/2013 11:56 AM, Tom wrote:
>> 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
>>>>
>>>>
>>>>
>>>>
>>>>
>> _______________________________________________
>> AT mailing list
>> http://www.antique-tractor.com/mailman/listinfo/at
>
>
>_______________________________________________
>AT mailing list
>http://www.antique-tractor.com/mailman/listinfo/at
>
>
>