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Subject: Ford 600 generator

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Jon Calder    Posted 11-18-2019 at 10:53:42 [URL] [DELETE]        [Reply] [Email]  
  • Ford 600 generator
  • Hi, I'm sure you guys get tired of same questions- I checked the archive first and can't find direct answer so here goes:

    Installing wire harness (fron Brillman seems very good). I have the JMOR diagrams, the manuals and etc and have diligently followed, plus directions came with harness. Have not re-started the machine yet as waiting for new ignition switch.
    I'm concerned with connections to the gen itself. There are three wires. I found F and G labels on the bottom two wires (close together bottom of gen) and another unmarked wire on top. I "think" I have them on correct.
    But I saw a post somewhere that said G could be GEN vice GROUND which would make a difference...
    I assumed (always dangerous) that the unmarked wire on top must be ARM(ature). Is correct?
    Anybody have a real simple explanation of what's what?
    Many Thnaks!

    Tim Daley(MI)    Posted 11-18-2019 at 13:54:54 [URL] [DELETE]        [Reply] [No Email]  
  • ADDITIONAL GENERATOR INFO
  • The correct generator for a 600/800 is the 3-Wire/2-Brush B-Circuit Designed 20 AMP output style. "G" is always GROUND. "F" is always FIELD, and "A" is ARMATURE. Voltage Regulators are sometimes marked with a "G" for ARMATURE -same thing, but most will say "A". Polarizing the generator should be done when installing new components. It is important to know which circuit you have. OEM Ford Tractor used the "B" Circuit with eth original OEM early 9N small 2-Wire/2-Brush generator and VR. All other N's used the "A" circuit designed generator starting with the s/n 9N-12500, 1-Wire/3-Brush unit and cutout til 8N production, using the 3-Wire/3-Brush unit with a VR, and later 3-Wire/2-Brush unit. The NAA model began using the "B" Circuit design again thru Hundred Series and beyond. If you jumper the wrong way, you will surely fry your VR.

    CORRECT PROCEDURES FOR POLARIZNG THE GENERATOR VIA VR:


    Tim Daley(MI)

    TPD    Posted 11-18-2019 at 11:37:41 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford 600 generator
  • The correct generator for a 600/800 is the 3-Wire/2-Brush B-Circuit Designed 20 AMP output style. "G" is always GROUND. "F" is always FIELD, and "A" is ARMATURE. G and F terminals are on the barrel, A is on the back end plate. F has an insulator behind the stud. The correct Voltage Regulator is p/n FAG-10505-A. Wiring diagram in OEM Operator's Manual. Schematic diagram is in the I&T FO-20 Manual.

    NAA/600/800 ELECTRICAL DIAGRAM:


    TPD

    Jon Calder    Posted 11-18-2019 at 11:47:10 [URL] [DELETE]        [Reply] [Email]  
  • Re: Ford 600 generator
  • Thank you very much. Started with a rats nest of taped together wires, no terminal block, no ammeter and various "Bubba" re-routes. Coming together nicely as original.

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