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Super C Electricals

M

mountain4don

Member
I have about a 1954 Super C Farmal that my Dad gave to me 20 years ago. The battery went dead several years ago and I have just been crank starting it to do the brushhogging and other general work. My wife wants me to put a battery in it so she can use it too. I took the battery out and found all the wires coming out from under the center column to the gauges and switches running to the front of the tractor are all chewed up and corroded bare. So I have to do some wiring or replace the whole mess. Where can I find info for the wire sizes and types to get and where they all go? Of course I can trace the existing wires I guess.

Don Mountain
 
Thanks for the diagrams. But they don't have any wire sizes on them? I found a diagram in my manual also, but no wire sizes on that either. Also, does anybody know what type of wire I need in terms of coverings and stuff to hold up longer. Some of the stuff available in the auto parts stores have some real soft plastic coverings that don't seem like they would hold up for long in a rough environment.

Don Mountain
 
From what I've heard and what I've used most of the wires are mostly 10 gauge with 0 or 00 battery cables. the 10 takes care of headlights and generator and the general what not
 
(quoted from post at 14:26:58 08/26/10) Thanks for the diagrams. But they don't have any wire sizes on them? I found a diagram in my manual also, but no wire sizes on that either. Also, does anybody know what type of wire I need in terms of coverings and stuff to hold up longer. Some of the stuff available in the auto parts stores have some real soft plastic coverings that don't seem like they would hold up for long in a rough environment.

Don Mountain
Click to expand...

Yes, look for a little box that says "wire size legend" Everything you need to know is right there in those digrams.
 
Some of the original owners manuals have the wiring stuff there and that would the best way to go. 14ga carries 15amps the lite bulbs are 35 watts. w=AxV Your gen puts out around 10A on average so the 14ga will be plenty. I use the 14ga when i make a jarness for my As and Bs no voltage drop ect so it works well for me. If you want good restoration you can nuy a new one also. I would strongly suggest you get an owners manual it will answer your questions for many things.
 
Some of the original owners manuals have the wiring stuff there and that would the best way to go. 14ga carries 15amps the lite bulbs are 35 watts. w=AxV Your gen puts out around 10A on average so the 14ga will be plenty. I use the 14ga when i make a jarness for my As and Bs no voltage drop ect so it works well for me. If you want good restoration you can nuy a new one also. I would strongly suggest you get an owners manual it will answer your questions for many things.
 
Hey Gene, so with this calc and 3 lights on the tractor each pulling 35 watts (or 5.8 amps each), you are running off battery power? I guess, even running just the front two lights, you're still pulling almost 12 amps, and the genny can only put out 10 amps?

I guess you really can't add extra lights to a 6V system then without really taxing the battery?
 
Three wire sizes are used. 0gauge for battery cables and an equal current carrying ground strap, 10 gauge from gen to reg, (or if an alternator, 10g from alt to amp meter load terminal) 10 gauge from amp gauge to starter switch or relay (connects to battery hot side), and 12 gauge for ignition, field wiring, and lights. Using 10 for all circuits other than bat cables would be difficult. Jim
 
With the engine at 2/3 throttle or more and a good genny (3rd brush fully toward the fixed brush if that type) it will keep up. But less than those rpm ranges will deplete the battery. Vintage Delco Generators can usually put out 15 to 18 amps. Jim
 
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