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Farmall & IHC Tractors Discussion Forum
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Lo Boy Starter-Generation: Diagrams of Int. Circui

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JAGinGA

02-09-2005 18:26:16




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Does anyone have an electrical diagram of the internal workings of the Lo Boy Starter-Generator?
My friend's Lo Boy starter will not turn enough to crank the motor even through the starter unit has been rebuilt. In fact, it will not turn the motor very well with the spark plugs out.

We are puzzled. What is the difference between a regular generator and the starter-generator?




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BillGeer

02-09-2005 21:00:54




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 Re: Lo Boy Starter-Generation: Diagrams of Int. Ci in reply to JAGinGA, 02-09-2005 18:26:16  
I have a 154 lo boy has starter\generater works great. my tractor does not have a ring gear on the stater on it.Where are you? I have all the manuals. Iam in ST, Johns MI

Bill



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EZ

02-09-2005 19:36:08




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 Re: Lo Boy Starter-Generation: Diagrams of Int. Ci in reply to JAGinGA, 02-09-2005 18:26:16  
JAGin,

My Loboy has it"s own starter and it"s own generator. 2 completely different items. Now I know that a starter/generator will crank a single cylinder 10Hp Briggs, easily when it"s warm, it has a little trouble when the oil is cold. Sooooo...not sure that starter generator would crank the 4 cylinder Cub engine, maybe.

The difference: The starter of course faces toward the rear of the tractor and spins the ring gear in the bell housing. By using a starter/generator (which continues to spin after engine starts, unlike the starter which disengages once the engine fires.) you would by way of a belt be cranking the front pulley.

If you are using it in this manner, I would like to hear about it, sounds interesting. Did it work before? You may have a problem in the circuit going to the starter/gen. i.e. solenoid? weak battery, etc..

Have you tried putting direct battery to it on a bench with no belt? Does it spin quick?

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Bigdog

02-10-2005 06:20:20




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 Re: Lo Boy Starter-Generation: Diagrams of Int. Ci in reply to EZ, 02-09-2005 19:36:08  
EZ - the 154 & 185 numbered lo-boys were equipped with starter / generators rather than a standard starter. So what he is dealing with is a stock set-up. They went back to ring gear starters on the 184 lo-boy. I don't believe he has modified anything. He is dealing with the inherent weakness of the starter / generator system.



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