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Discussion Forum

'47 AG 6 dozer, need big help!

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dave k

06-06-2002 09:24:47

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Greetings all. I posted about a week ago but see no such post, so I will try again. I have come into an Oliver AG 6, about 1947 or 8. The fellow decided he was never going to get it going. Believes engine may be cracked from poor antifreeze. Seems to turn over by hand. It was running about 3 years ago. BAttery cables have been replaced who knows how namy times, so.. Is it a POSITVE or NEGITIVE ground? Could it have been altered from original issue? How can I tell? What can get ruined if I hook up a battery wrong way to ground?
My intention is to get it under roof ASAP so I can get after the tracks, etc.
I will be asking a lot more questions before I am done.

Thanks all

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Bob K.

06-07-2002 18:19:10

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 Re: '47 AG 6 dozer, need big help! in reply to dave k, 06-06-2002 09:24:47  
Hi...if it is a gas engine, it most likely is 6 volt, and positive ground, given that's what my Olivers are....meanwhile,starters are generaly wound for direction, not polarity, so it should turn the correct way no matter.

The wrong polarity may damage your charging system,however, but if your just trying to spin it over, then disconnect the generator whilst your monkeying with it.

You can also put the twelve volts right to it for short stints, so long as you don't overheat it enuf to bake the varnish on the windings, you'll be fine. I switched my tractor from 6V-Pos to 12V Neg 3 years ago with narry a peep. I did, of course, have to change the generator, but the starter remains to this day. It does help that it fires right up without long crankings...Good luck

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06-08-2002 05:06:07

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 Re: Re: '47 AG 6 dozer, need big help! in reply to Bob K., 06-07-2002 18:19:10  
Bob, thanks for the info. I plan to get the thing moved about 75 feet (if it starts). The previous owner insist that it needs a bunch of track work, like all new pins and new (better) front wheels. One drive sprocket is cracked in a couple places.
thanks again


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