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Farmall & IHC Tractors Discussion Forum
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806 3pt weak

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mike

02-07-2004 14:48:03




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working on a friend 806 the 3pt won't pick up any thing heavy like a big bale, we pulled out the pump in belly of tractor found the oring blowed between cover and case put in new oring and gasket, didn't help. took pump apart don't look bad. where to go from here? i'm JD man so don't know much. help




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Chuck's Repair

02-07-2004 19:08:06




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 Re: 806 3pt weak in reply to mike, 02-07-2004 14:48:03  
Remove the three point upper link cover.Start the tractor and pull an auxillary lever and watch to see where the hyd oil is dumping from.If it dumping from the top middle aroud the lift cyl then you have a blown o ring between the valve body and the three point cyl or a valve leaking or out of adjustment.



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Aces

02-07-2004 17:35:36




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 Re: 806 3pt weak in reply to mike, 02-07-2004 14:48:03  
Which pump did you pull the one for the hitch and remotes is below the left hand brake. The relief valve is in the right hand seat suport from the out side a hex head about an inch in size should have the pressure stamped on it and the 806 should say 1600.



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mike

02-07-2004 17:52:04




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 Re: Re: 806 3pt weak in reply to Aces, 02-07-2004 17:35:36  
I remove the relief valve this one says 2000, I took it apart looks like the seat and valve are not to great, is this enough to cause it or should i look more, thanks for all your help mike



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scottAR

02-07-2004 17:26:20




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 Re: 806 3pt weak in reply to mike, 02-07-2004 14:48:03  
One thing that happened to me. A man ran the tractor for quite a distance with one remote lever hung on pressure. It heated up the oil in the process and would not even pick up an implement. When it cooled the pressure came back but the pump went out about two weeks later.



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ChadS

02-07-2004 14:54:29




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 Re: 806 3pt weak in reply to mike, 02-07-2004 14:48:03  
I may be off, But we had the same problem with our 856, there is a pressure relief valve, or something along that line, under the seat that we had changed, and it started working just fine. it is a small round barrel shaped part, that is located in a large cap plug, under the seat. on the lower right hand corner. May be right, may be off, Might check it out. Chad



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