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John Deer PM Alternator

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jmjones2000(at)mindspring
Guest

Posted: Sun Nov 09, 2014 4:53 am Post subject: John Deer PM Alternator

Has anyone used the John deer PM alternator?  With some research, I have found that it is 20A and requires an external regulator.  It weighs 3.5 lbs and the cost is around $110 usd.  



Part numbers:  



SE501843

2500A

2500B

APM0005

AM877557

10939



and many more



Seems it may be a good lightweight alternator for primary or backup use.



Justin

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raymondj(at)frontiernet.n
Guest

Posted: Sun Nov 09, 2014 5:25 am Post subject: John Deer PM Alternator

When I was following the Corvair aircraft engine building lists they 

were using the JD item on the builds.  You may find some info there also.



Raymond Julian

Kettle River, MN



The things we admire in men, kindness and generosity, openness, honesty, 

understanding and feeling are the concomitants of failure in our system. 

And those traits we detest, sharpness, greed, acquisitiveness, meanness, 

egotism and self-interest are the traits of success. And while men 

admire the quality of the first they love the produce of the second. 

-John Steinbeck, novelist, Nobel laureate (1902-1968)



On 11/09/2014 06:52 AM, Justin Jones wrote:

 	  Quote: 	
		   



 Has anyone used the John deer PM alternator?  With some research, I have found that it is 20A and requires an external regulator.  It weighs 3.5 lbs and the cost is around $110 usd.



 Part numbers:



 SE501843

 2500A

 2500B

 APM0005

 AM877557

 10939



 and many more



 Seems it may be a good lightweight alternator for primary or backup use.



 Justin

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yellowduckduo(at)gmail.co
Guest

Posted: Sun Nov 09, 2014 5:49 am Post subject: John Deer PM Alternator

I've got 600 hours on one of those running one side of a Z-14 setup with 

the matching J-Deere regulator. I did convert it to a multi-v belt 

pulley which was a bit of a challenge. It Turns 8 to 10,000 rpm on my 

setup. I replaced one of the ball bearings that seemed dry when I 

happened to have the unit off at around 500 hours. I believe they are 

popular with the Corvair and VW  converters as well.

Ken

On 09/11/2014 8:22 AM, rayj wrote:

 	  Quote: 	

 When I was following the Corvair aircraft engine building lists they 

 were using the JD item on the builds.  You may find some info there also.

 Raymond Julian

 Kettle River, MN

 The things we admire in men, kindness and generosity, openness, 

 honesty, understanding and feeling are the concomitants of failure in 

 our system. And those traits we detest, sharpness, greed, 

 acquisitiveness, meanness, egotism and self-interest are the traits of 

 success. And while men admire the quality of the first they love the 

 produce of the second. -John Steinbeck, novelist, Nobel laureate 

 (1902-1968)

 On 11/09/2014 06:52 AM, Justin Jones wrote:

> 

> <jmjones2000(at)mindspring.com>

>

> Has anyone used the John deer PM alternator?  With some research, I 

> have found that it is 20A and requires an external regulator.  It 

> weighs 3.5 lbs and the cost is around $110 usd.

>

> Part numbers:

>

> SE501843

> 2500A

> 2500B

> APM0005

> AM877557

> 10939

>

> and many more

>

> Seems it may be a good lightweight alternator for primary or backup use.

>

> Justin

>

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jmjones2000(at)mindspring
Guest

Posted: Sun Nov 09, 2014 6:57 am Post subject: John Deer PM Alternator

Ken, 

Are you running it on the front of a lycoming?  I would like to find a way to drive it from the rear vacuum pad. The b&c alternators are pricey in comparison. 

 	  Quote: 	
		   On Nov 9, 2014, at 16:47, Cherie&Ken <yellowduckduo(at)gmail.com> wrote:

 I've got 600 hours on one of those running one side of a Z-14 setup with the matching J-Deere regulator. I did convert it to a multi-v belt pulley which was a bit of a challenge. It Turns 8 to 10,000 rpm on my setup. I replaced one of the ball bearings that seemed dry when I happened to have the unit off at around 500 hours. I believe they are popular with the Corvair and VW  converters as well.

 Ken

> On 09/11/2014 8:22 AM, rayj wrote:

> 

> 

> When I was following the Corvair aircraft engine building lists they were using the JD item on the builds.  You may find some info there also.

> 

> Raymond Julian

> Kettle River, MN

> 

> The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest are the traits of success. And while men admire the quality of the first they love the produce of the second. -John Steinbeck, novelist, Nobel laureate (1902-1968)

> 

>> On 11/09/2014 06:52 AM, Justin Jones wrote:

>> 

>> 

>> Has anyone used the John deer PM alternator?  With some research, I have found that it is 20A and requires an external regulator.  It weighs 3.5 lbs and the cost is around $110 usd.

>> 

>> Part numbers:

>> 

>> SE501843

>> 2500A

>> 2500B

>> APM0005

>> AM877557

>> 10939

>> 

>> and many more

>> 

>> Seems it may be a good lightweight alternator for primary or backup use.

>> 

>> Justin

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nuckolls.bob(at)aeroelect
Guest

Posted: Sun Nov 09, 2014 8:31 am Post subject: John Deer PM Alternator

At 07:47 2014-11-09, you wrote:

 	  Quote: 	
		  



I've got 600 hours on one of those running one side of a Z-14 setup 

with the matching J-Deere regulator. I did convert it to a multi-v 

belt pulley which was a bit of a challenge. It Turns 8 to 10,000 rpm 

on my setup. I replaced one of the ball bearings that seemed dry 

when I happened to have the unit off at around 500 hours. I believe 

they are popular with the Corvair and VW  converters as well.


	


  Depending on the regulator technology, running a PM alternator

  at very high speeds elevates risk to the electronics. Unlike

  the wound-field machines where actual output votlage is limited

  by the regulator, a PM alternator's output is proportional to

  driving RPM. So running a PM alternator as much greater speeds

  than they operate in their other-life on garden tractors

  MIGHT prove challenging to the PM regulator.





   Bob . . .

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nuckolls.bob(at)aeroelect
Guest

Posted: Sun Nov 09, 2014 8:40 am Post subject: John Deer PM Alternator

At 06:52 2014-11-09, you wrote:

 	  Quote: 	
		  

<jmjones2000(at)mindspring.com>



Has anyone used the John deer PM alternator?  With some research, I 

have found that it is 20A and requires an external regulator.  It 

weighs 3.5 lbs and the cost is around $110 usd.


	


  I think they have some 3-phase models that run

  upwards of 30A.



   Bob . . .

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yellowduckduo(at)gmail.co
Guest

Posted: Sun Nov 09, 2014 5:27 pm Post subject: John Deer PM Alternator

Well no I'm running it with a dedicated 3-V belt on a Subaru slowed to 

what I consider acceptable. The original single V "pulley" arrangement 

is quite small. It is not feasible to drive this thing from a vacuum pad 

IMO. It would entail a lot of machining and very likely put the engine 

accessory drive at risk from torsional resonances.

Ken



On 09/11/2014 9:54 AM, Justin Jones wrote:

 	  Quote: 	
		   



 Ken,



 Are you running it on the front of a lycoming?  I would like to find a way to drive it from the rear vacuum pad. The b&c alternators are pricey in comparison.



   



> On Nov 9, 2014, at 16:47, Cherie&Ken <yellowduckduo(at)gmail.com> wrote:

>

> 

>

> I've got 600 hours on one of those running one side of a Z-14 setup with the matching J-Deere regulator. I did convert it to a multi-v belt pulley which was a bit of a challenge. It Turns 8 to 10,000 rpm on my setup. I replaced one of the ball bearings that seemed dry when I happened to have the unit off at around 500 hours. I believe they are popular with the Corvair and VW  converters as well.

> Ken

>

>> On 09/11/2014 8:22 AM, rayj wrote:

>> 

>>

>> When I was following the Corvair aircraft engine building lists they were using the JD item on the builds.  You may find some info there also.

>>

>> Raymond Julian

>> Kettle River, MN

>>

>> The things we admire in men, kindness and generosity, openness, honesty, understanding and feeling are the concomitants of failure in our system. And those traits we detest, sharpness, greed, acquisitiveness, meanness, egotism and self-interest are the traits of success. And while men admire the quality of the first they love the produce of the second. -John Steinbeck, novelist, Nobel laureate (1902-1968)

>>

>>> On 11/09/2014 06:52 AM, Justin Jones wrote:

>>> 

>>>

>>> Has anyone used the John deer PM alternator?  With some research, I have found that it is 20A and requires an external regulator.  It weighs 3.5 lbs and the cost is around $110 usd.

>>>

>>> Part numbers:

>>>

>>> SE501843

>>> 2500A

>>> 2500B

>>> APM0005

>>> AM877557

>>> 10939

>>>

>>> and many more

>>>

>>> Seems it may be a good lightweight alternator for primary or backup use.

>>>

>>> Justin

>

>

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Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

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