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Allis Chalmers Discussion Forum
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Allis Chalmers generator

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JM976

09-02-2009 20:00:50




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Working on a D17 gas engine and I need to know if the generator is internally grounded or externally grounded so I can correctly polarize it. Were these Delco-Remy? I"d sure appreciate any info...tractor #76284,series IV,1964




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rustyfarmall

09-04-2009 06:27:02




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 Re: Allis Chalmers generator in reply to JM976, 09-02-2009 20:00:50  
Yes, Allis-Chalmers used the Delco-Remy electrical systems.



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JM976

09-03-2009 16:02:42




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 Re: Allis Chalmers generator in reply to JM976, 09-02-2009 20:00:50  
John T,Texas Denny,many thanks to you fellas for your info and quick replies, lucky for me I found this forum and the help I got from the people in it. With that and a little luck hope to add another D-17 to the active list!



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John T

09-03-2009 09:45:27




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 Re: Allis Chalmers generator in reply to JM976, 09-02-2009 20:00:50  
Im pretty sure AC used a Class A Charging System. They have one brush internally grounded BUT THE FIELD WINDINGS ARE NOTTTTTTTT internally grounded as on a Class B system like some Fords used. The one Field winding end attaches to the same point as the Armature post while its other end terminates out the gennys FLD post (isolated n insulated from case). Therefore to Polarize the genny you can momentarily flash jump a wire from the BAT terminal on the VR over to the ARM/GEN terminal. Or else direct (jump a hot ungrounded battery voltage source) to the gennys ARM post accomplishes the same thing.

John T

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