I have a super c with original 6 volt system.... system seems to be running good.. charging
to around (@ 1000rpms) 7+ volts and delivering 2-4 amps to battery (after running for a half hour or so)..
My question/ concern is that the generator body stays quite hot...not hot enough to burn the hand
but pretty close (maybe 130-150f )... seems hot to me, but I don't know anything about what is
normal for 6v generators (a little before my time)...I recently rebuilt the generator with new bearings and
brushes (3 brush generator), it didn't make any difference... also amp gauge shows some charge being generated...
I'm kinda wondering if the battery is getting weak or has some sort of short etc.......Not to be rude, but for those
who want me to switch over to 12v, blah, blah blah.. it ain't happening.. keeping it all original...
Hello.... First off I am not an expert at anything. So, my comments can be considered as such : ) I restored a Super C years and years ago and loved it to death and used the heck out of it. But, it has always always had charging problem either very low charge or mostly a slight discharge. I recently decided to fix it after 30 years of not working right. The only time it ever showed a charge was when I was bouncing around on it or I tapped on the voltage regulator and then it was a low charge for a short period of time and went to a slight discharge.
1) About 3 times I took the generator and regulator down to a guy that was very knowledgeable. He put everything up on his mock-up and confirmed everything worked. That always frustrated me. So, I assumed I had either wired it incorrectly or I had a some other component within the electrical that was bad (that doesn't leave a lot).
2) Recently I took the control panel guts out and look at the ON/OFF switch, amp meter, 3 position light switch, and fuse holder. I checked everything for function and grounding issues. I looked closely at the two posts coming out of the amp meter. They were properly insulated from the steel retaining bracket and they had no continuity to ground and the amp meter did appear to function. So, I considered it not the issue.
3) Swapped in a good used fuse holder. It was good but I had a better on. No problems there. It had continuity and was isolated from ground.
4) The light switch is a 3 position switch (correct for voltage regulator, Off and HIGH/LOW lights. I had two light switches so I took them both apart and found the one on my tractor was assembled 180 degrees out. It made my light switch feel like it had a 4th position. I combined the two switches to make a nice 3 position switch with the single resistor on the back for HIGH/LOW lights. Switch checked good, not grounded to the metal housing.
5) I did some reading. I decided to ground the F terminal to the frame..... My amp meter briskly climbed to over 10 amps. I didn't leave it like that for very long. My generator was working happily!
6) I have replaced the regulator too many times in the past. Tapping on it, makes it work a little. I was temped to try and buy a new one. But I kept reading generator issues on the internet and I learned. I learned that there are 2 brush generators. I was familiar with 3 brush (with adjustable 3rd brush) and I was familiar with 3 brush (with non-adjustable 3rd brush). I never knew about the 2 brush generators. In general, what I read is that the 2 brush generators were designed to work with the voltage regulators. The 3 brush generators were earlier design and worked with the "cut-out." I am familiar with those because I once had a Farmall A and it charged GREAT and STARTED GREAT on 6 volts. I rebuilt my generator years ago and have taken it apart several times looking for grounding issues or intermittent wiring issues. IT IS A 3 BRUSH generator with a non-adjustable 3rd brush. I don't believe it is the generator that belongs on my tractor. I can't read the number on the side but being a 3 brush generator, it is not the Delco 1101501 or 1100501 that is called for. I believe this is my problem. The generator and the regulator are not playing well together. I am in search of a Delco 1101501 or 1100501 generator. Please contact me if you have a rebuildable one.
UPDATE: I am further confused again. I looked in my Farmall/International parts manual and it only shows the 1100501 generator (isn't this the 3 brush generator?? I have read that I need the 2 brush generator????????? What gives??
So,