3010 positive ground?

[samhenry]

I recently bought a 1963 3010 gas. the battery was installed negative ground. my understanding is that 1963 was the last year they did positive ground on john Deere is this correct and how d I make sure which way to install new battery? thanks

 

[Tx Jim]

If tractor has a factory generator then it needs to be positive ground. If it has an alternator then it's needs to be negative ground

 

[Cliff Nelson]

Pos ground was original with generator. Before switching it back, Make sure it has not been switched to solid state ignition which will go up in smoke if switched back to pos ground. Generator can be polarized to charge neg ground

 

[D-]

'63 was last year for 3010 but '68 was last year for positive ground.

 

[samhenry]

ok im pretty sure it has generator. and it still has point ignation

 

[John T]

Far as I know if it had a Generator its Positive Ground. Re connect battery to POS Ground, POlarize the genny BEFORE starting, see what happens.

For Pos ground the coils - receives ignition switched voltage while + wires to distributor.

John T

 

[Tx Jim]

(quoted from post at 07:04:58 01/12/15) Far as I know if it had a Generator its Positive Ground.

John
You're correct on positive ground. JD changed to negative ground on rowcrop tractors in '69 when they started installing alternators.

 

[Kent Petersen]

+ Jim the genny will work ether way on the ground

 

[Tx Jim]

(quoted from post at 07:39:45 01/12/15) + Jim the genny will work ether way on the ground

Yes I'm aware that the generator will work equally well on a negative ground system but was just stating how the electrical system was when JD tractor rolled off assembly line.