440icd electrical

Jaybird · Post by **Jaybird** » Tue Sep 22, 2015 6:40 pm

Reverser back in. Engine and radiator is in. Hopefully back running be weekend.
Does anyone know if I switched from 12 volt positive ground to negative ground if it would effect anything other than gauge.
Many Thanks, Jaybird

jtrichard · Post by **jtrichard** » Tue Sep 22, 2015 9:20 pm

IF you have an amp meter switch the wires on the back or it will read BACKWARDS

gregjo1948 · Post by **gregjo1948** » Wed Sep 23, 2015 4:09 am

LIGHTS?

halwelch · Post by **halwelch** » Thu Sep 24, 2015 6:32 am

Lights don't care about polarity. You could run em on 12 volt AC for that matter. Starter motors don't seem to care either. Can't think of anything but the ammeter that needs to be changed. Not familiar with that tractor but if it has a generator that would need to be polarized. An alternator would need to be changed out or severely modified internally.

gregjo1948 · Post by **gregjo1948** » Thu Sep 24, 2015 3:35 pm

Seems like 12 volts would over power 6 volt bulbs and blow them. gregjo1948

shinnery · Post by **shinnery** » Thu Sep 24, 2015 7:12 pm

8 volts will severely shorten the life of 6 volt bulbs. Don't ask me how I know.
Bryce

jtrichard · Post by **jtrichard** » Thu Sep 24, 2015 10:10 pm

THE question was" I switched from 12 volt positive ground to negative ground if it would effect anything other than gauge" he all ready had 12 volt so lets assume he had changed the bulbs all ready

gregjo1948 · Post by **gregjo1948** » Fri Sep 25, 2015 3:38 am

jtrichard wrote:THE question was" I switched from 12 volt positive ground to negative ground if it would effect anything other than gauge" he all ready had 12 volt so lets assume he had changed the bulbs all ready

Gotcha!

Stan Disbrow · Post by **Stan Disbrow** » Fri Sep 25, 2015 5:37 am

Hi,

One has to repolarze the generator. And, as noted, swap the leads on the ammeter (or just live with having to read it backwards).

Stan

pop pop · Post by **pop pop** » Fri Sep 25, 2015 6:08 am

wouldn't reversing polarity also reverse the starter?

Stan Disbrow · Post by **Stan Disbrow** » Fri Sep 25, 2015 6:46 am

Hi,

No. Starters are four brushes, so they do not care.

Stan

whiteclipse16 · Post by **whiteclipse16** » Thu Oct 01, 2015 10:19 am

This pertains to an ICD, they are 12V from the factory so it should have the 12V bulbs.
The gassers are the 6V jobs.

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