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Oliver 550 wiring question.


 
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Gleanerguy
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Joined: 18 Jul 2007
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PostPosted: Thu Jul 01, 2010 9:36 am    Post subject: Oliver 550 wiring question. Reply to specific post Reply with quote

I am putting an alternator on my neighbor's 550 Oliver tractor (1964 model).

Presently it has a generator with an external regulator. The tractor has no ammeter. It has a positive grounding system.

I would be changing over to a standard negative grounding system with a one wire alternator with a built in regulator.

Am I correct- that I would need to switch the wires at the coil (the wire from the starter and the wire going to the distributor)? Thanks.
 
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rvirgil_KS
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PostPosted: Thu Jul 01, 2010 10:18 am    Post subject: Re: Oliver 550 wiring question. Reply to specific post Reply with quote

You are correct. With negative ground, the negative (-) terminal on the coil goes to the distributor.

If generator had a 3 wire regulator, remove generator and regulator along with Armature and Field wires. The wire on the BAT terminal of regulator will go to output of alternator.

If generator had a 4 wire regulator with L (Load) terminal you will need to connect the input of the starter and light switch to the alternator output.
 
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Gleanerguy
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PostPosted: Thu Jul 01, 2010 10:45 am    Post subject: Re: Oliver 550 wiring question. Reply to specific post Reply with quote

Thank you for your help, that's what I thought.
 
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J. Schwiebert
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PostPosted: Thu Jul 01, 2010 10:49 am    Post subject: Re: Oliver 550 wiring question. Reply to specific post Reply with quote

Except the existing wire may not have the capacity to handle alternator out put.
 
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mmoore
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PostPosted: Thu Jul 01, 2010 12:55 pm    Post subject: Re: Oliver 550 wiring question. Reply to specific post Reply with quote

The fuel and temp. gauges will not work corectly. You will need to buy a negative ground cluster gauge.
 
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wmthrower
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PostPosted: Wed Jul 07, 2010 4:46 am    Post subject: Re: Oliver 550 wiring question. Reply to specific post Reply with quote

That's right, you need to buy a new cluster guage. When you pull the old one out take notes of where all the wires go on the guage. There are some "jumper" wires between terminals.
 
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