24V alternator on 4010

hunter64 · Feb 15, 2015

Getting ready to replace the 24V generator with a 24V alternator. Electric shop said to just hook the single wire from the alternator the + side of the solenoid. They said to unhook the leads to the old regulator and tape up. Now there are no lights on 12 V side. Any Ideas?

Tx Jim · Feb 15, 2015

Before I installed a 24 V alt I'd change it over to a 12 volt system

tim s · Feb 15, 2015

I agree with Jim..12 volt systems are a better set up..

JD Seller · Feb 15, 2015

The trouble is that the JD 24 volt system is a hybrid not a true 24 volt system like the military uses. Your JD 4010 actually is two 12 volts systems. One 12 volt positive grounded and one 12 volt negative ground. The starter is the only thing that actually sees full 24 volts.

Your electric shop told you wrong there are three terminals on the starter. The one on the solenoid is actually twelve volt. IF you have ran the tractor much you may have burnt some things up. Like all of the light bulbs. There is small ground wire on the left battery that has to hooked up or the lights see 24 volts and you burn the bulbs out.

I really do not know how you would wire a 24 volt alternator to a JD system and have it charge both batteries.

Like the others have posted you really should just change it over to 12 volt. The kits are available at a fairly reasonable price now.

Bob · Feb 15, 2015

You could have got a 24 Volt "isolated ground" alternator and connected it up just like the generator.

JMOR · Feb 15, 2015

(quoted from post at 16:11:36 02/15/15) You could have got a 24 Volt "isolated ground" alternator and connected it up just like the generator.

agree. However, his lack of lights probably have to do with separating the two wires he removed from the regulator GRD terminal. Tie those two together.

Owen Aaland · Feb 15, 2015

The original generator is also a full 24 volts like the starter. Neither the starter or the generator are grounded to the tractor frame but rather each have separate positive and negative leads.

VicS · Feb 15, 2015

Believe it or not. My brother welded the shafts together of two delco alt. One is positive ground one negative. Both ate isolated. One to each batt. Each side of 4010 has deferent ground. Even the dash. Best to change to 12 starter and alt.

Bob · Feb 15, 2015

"Each side of 4010 has deferent ground"

NOPE! not even CLOSE, only ONE ground, at the midpoint of the two 12 Volt batteries.

Archaic, and probably NOT the best idea, but it DID work. And still does, even on the 4020D I own.

Vic, "live and let live"!

(For you guys that obsess over the DEERE/Delco 24 Volt stuff, step over the the other side and figure out the Clatterpillar/Delco/24 Volt stuff!)

24V alternator on 4010

hunter64

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Tx Jim

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tim s

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JD Seller

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Bob

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JMOR

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Owen Aaland

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VicS

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Bob

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