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Subject: 1953 Jubilee

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John S.    Posted 09-24-2018 at 20:13:40 [URL] [DELETE]        [Reply] [Email]  
  • 1953 Jubilee
  • Greetings, I am a new owner of a 1953 Jubilee. It has good bones. I always liked tractors and have a BobCat CT335. I found this one for sale this summer but it was not advertised on the web. I am in process of getting the first layer or grime off. I do not intend to really use it for any real work. I will just enjoy having a great piece of history. I am now slowly tying to figure out the original electrical system, still 6V but the previous owner had the battery cables reversed and I am correcting that but may have found out I may have generator problems. Can someone tell me what terminal posts on the generator should be field, etc. as I cannot see any letters under the paint. Also, I see the batt terminal wire on the regulator going directly to the ammeter in lieu of going to the junction block as shown in wiring diagrams first. Is this aproblem ? Thanks in advance for your help. As I learn about my tractor I will have many questions.

    TheOldHokie    Posted 09-25-2018 at 14:54:50 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 1953 Jubilee
  • If you reverse the battery connections the generator will not charge until it is re-polarized to match the battery.

    TOH

    steveVa    Posted 09-25-2018 at 11:24:40 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 1953 Jubilee
  • Welcome to the N tractor Club.
    I have a Jubilee that is mostly orig and I like it a lot.
    First a few questions.
    Does it run now?
    Is it 6 volt with positive ground?
    Did you check volts while running to see if it charges?
    Mine has 3 wires from VR to generator. I will have to look at manual to figure which is which.
    Let us know if it runs ane which is to ground.
    I have heard it will run ok either way, but origonal is positive ground.

    Tim Daley(MI)    Posted 09-25-2018 at 11:44:35 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 1953 Jubilee
  • Steve- The VR is pretty straightforward. There are three terminals plainly marked: ARM - FLD - BAT with a fourth ground wire feeding the safety neutral starter switch button as shown. A previous post with the LINK to WIRING PICTOGRAMS by JMOR has the OEM 6V/POS GND wiring -scroll all the way to the very bottom -it is the last one shown. Colors are only for clarification on the drawing. Your wiring harness is not going to be exactly as shown. Colors do not conduct the electrons. That is why a continuity test with a VOM is required. Note, I didn't say use an idiot test light. Test lights require the power of the battery. You don't want to check wiring with power applied. It's best to disconnect the battery ground wire before starting so an accidental short won't fry something.


    Tim Daley(MI)

    Tim Daley(MI)    Posted 09-25-2018 at 05:15:42 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 1953 Jubilee
  • HiYa John, and welcome aboard the NTC! You’ve come to the best Internet web site for advice, documents, and just plain talk on old Fords. At the top of our home page is a red menu bar with several other forums to go to. In our HOW-To’s you’ll find many useful articles and documents on D-I-Y projects, maintenance, and other pertinent information. Also, in our MANUALS forum you will find a copy of the I & T F-19 Manual, a very good tool for NAA owners. It is an older version so you may want to invest in a newer version –try www.just8ns.com for a copy and for your parts source. Be aware that just because you have a 6-Volt battery it doesn’t mean the electrical system is wired as the correct OEM 6V/POS GND system. You stated the battery cables were reversed so that is a big clue you need to go thru the entire system thoroughly with a diagram and continuity test. The Ford generator FIELD terminal can be identified on the barrel by looking closely at the studs. The FIELD stud will have a phenolic or rubber washer insulating it from any contact with the steel barrel. The FORD NAA generator is a 3-Wire/2-Brush unit with a ‘B’ Circuit design –it’s important to know an ‘A’ circuit from a ‘B’ circuit when polarizing the generator. Output rated at 20 AMPS. The generator uses a Voltage Regulator, p/n FAG-10505-A. You need to get copies of the 39-53 MPC (Master Parts Catalog) the NAA Operator’s Manual, the F-19 manual, and a copy of “WIRING PICTOGRAMS BY JMOR”, in our HOW-TO’s/ELECTRICAL forum, and can be downloaded for FREE. Here is the LINK to get there now, and if you scroll all the way to the bottom, you will see the correct wiring diagram for the NAA (Jubilee). Start there, and post any questions as often as you like. Peruse the other forums too for a ton of free information. See ya ‘round…

    Tim Daley(MI)


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