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Oliver 60 rowcrop.Is it positive ground?

B

BlaineF

Member
Was wondering if the olover 60 is positive ground systems.Was wondering because I just got one home and would like to know before I install a battery.Thanks Blaine
 
BUT---if someone has changed to pos??? Best to do is look over all the wiring over and you can tell. If it is positive ground I would change to negative ground just to keep someone from connecting jumper cable or battery charger wrong because they didn't know better.
 
Originally positive ground. You can tell which way was by looking at the coil. If the NEG terminal goes to the ign switch, it's probably still POS ground. Before you go to start it, polarize the generator. Polarizing the generator is what tells it which pole is hot and ground. Polarizing is just taking a piece of 12 gauge wire and momentarily jumping across the BATT terminal and ARM terminals on the cutout relay. The cutout relay is that box on top of the generator with 2 terminals on it. If it happens to have a regulator, (3 or 4 terminals) the same applies.
 
Look at the battery cables. If the cable with the bigger diameter battery clamp goes to ground (frame), then it's still positive ground. The positive post on the battery is bigger than the negetive post.
 
Then what happens when some one who knows that most 6 volt tractors were positive ground tries to boost or charge the battery with out checking.1/2 the trucks and cars built in 1940 were positive ground.All 6v tractors Ive worked on were positive ground.
 
Good point. But in my experience folks that know lot of old equipment was positive ground will check. They don't know enough to understand you still hook the same as neg ground -to- and +to+ and will think, well pos is ground, so they will hook the - knowing it is ground to + because it is ground on that tractor and things get bad. However if they see it neg ground then no problem. I think it is safest way. However I'm sure we all know you can't fix anything fail safe for folks that just don't know.
 
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