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Farmall & IHC Tractors Discussion Forum
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Allan in NE 656 Hydro

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RAS

11-21-2005 11:12:48




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Allan did you find the problem with your 656? I have seen this before. Was the rear end apart? I hope this is not the problem with yours the ring gear goes on ones side for a gear drive and the other side for a Hydro. This happened in our shop one time they put the ring gear in on the wrong side and it would go 18 miles an hour back wards and would only creep forward. I think the service manual only shows a photo of the gear drive. Hope this helps.

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Allan in NE

11-21-2005 11:36:46




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 Re: Allan in NE 656 Hydro in reply to RAS, 11-21-2005 11:12:48  
Hi Ras,

Not yet. I just came from the red shop.

They say that they really can't tell til they put the gauges on the thing, but that there are a number of things that can cause it to act this way.

He's spoutin' all kinds of valves and circuits of which I know absolutely nothing about. Good news is that he says because it pulls so strong in one direction, he doubts very seriously that it has to come out of the tractor. He says that it has either lost an o-ring or split a line somewhere and is losing pressure on that one side.

I had it pretty well narrowed down to a hydraulic leak also, 'cause that old gal doesn't act right in either hi or lo. It'll dig like a badger on both sides of reverse but is weak on both sides when going forward.

We are waiting on some parts for the 3-point, so will put this problem on hold until such time as I can haul it back to town to have the hitch work done; then they'll put the flow rater on it and find out what is going on.

I understand automatic transmissions from one end to the other, but this thing is a total different breed of cat altogether.

Allan

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IH GARY

11-21-2005 18:56:39




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 Re: Allan in NE 656 Hydro in reply to Allan in NE, 11-21-2005 11:36:46  
If tractor goes to fast in reverse check motor servo cylinder. It's probably retracted and the motor swash plate is straightened up. This will also cause low pulling power in forward. Check viable orfice and fixed orfice in servo. One is either leaking or one is plugged



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Allan in NE

11-22-2005 04:49:16




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 Re: Allan in NE 656 Hydro in reply to IH GARY, 11-21-2005 18:56:39  
Thanks Gary,

That's what the local red shop said too. Also said that those inner lines will crack and leak?

Dunno, I'm gonna let the pros handle this chore since they have to work on the tractor later this winter anyway.

I appreciate your help,

Allan



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Tim...Ok

11-21-2005 12:06:18




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 Re: Allan in NE 656 Hydro in reply to Allan in NE, 11-21-2005 11:36:46  
Looks like ya figgered out what that trailer ya bought is for.. :)

Hope they can it straightened out for ya..


Tim



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Allan in NE

11-21-2005 15:53:06




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 Re: Allan in NE 656 Hydro in reply to Tim...Ok, 11-21-2005 12:06:18  
Oh heck yeah,

We got lucky and saved that old engine; maybe my luck will hold and it's just a broken line or some such thing. :>)

Allan



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