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09-13-2012, 09:15 AM | #1 |
Senior Member
Join Date: Aug 2012
Location: Adrian , Mich.
Posts: 386
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Amp Meter Connectons ?
I am new to haveing an "A" so please bear with me on what may sound like a dumb question .
Can anyone tell me which way is correct to connect the amp wires on my "A" ? In Les Andrews book ,"Troubleshooting & Diagnostics" , on page 4-14 , a pic shows Neg side to Bat , and Pos side to all electrical circuits . But in the next colum it says "the charge side of the ammeter is connected to the battery by way of the wire from the terminal box to the starter switch post" . And" discharge side of the ammeter is connected to the output of the generator and all electrical circuits , through the three wires connected at the output of the generator cutout relay ." So which is correct ? In most all wireing diagrams I have found in the books I have , the Neg & Pos sides of the amp is not marked , showing which wires go where . |
09-13-2012, 09:43 AM | #2 |
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Join Date: Jan 2011
Location: Colorado Springs
Posts: 868
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Re: Amp Meter Connectons ?
This schematic makes it clear. Download, print, and laminate this for future use.
http://www.fordbarn.com/forum/showth...ight=schematic
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09-13-2012, 12:02 PM | #3 |
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Join Date: May 2010
Location: Mpls, MN
Posts: 27,582
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Re: Amp Meter Connectons ?
Since some repro guages register backwards, it's best just to connect the ammeter and turn the lights on to make sure the meter shows discharge. If it shows charge, then reverse the wires.
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09-13-2012, 12:11 PM | #4 |
Senior Member
Join Date: May 2010
Location: Alabama
Posts: 8,099
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Re: Amp Meter Connectons ?
I agree with Tom. Some of the ammeters are model T. Model T was negative ground, just the opposite of the model A and will cause the ammeter to register backwards.
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09-13-2012, 12:28 PM | #5 |
Senior Member
Join Date: May 2010
Location: Lindenhurst, IL
Posts: 792
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Re: Amp Meter Connectons ?
FYI, I have found many repro have loose terminals and have had to dis-assemble to tighten. Not an area to have loose connections!
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09-13-2012, 10:26 PM | #6 |
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Join Date: Jun 2010
Location: Southern Pines, N.Carolina
Posts: 210
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Re: Amp Meter Connectons ?
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