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Farmall & IHC Tractors Discussion Forum
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1466 Hydraulic Problems

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Brian T from OH

07-08-2006 21:02:51




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I discovered that the hydraulics work when you first start the tractor and the fluid is not at operating temperature. after the tractor has run for a while it will raise the disk and then not lower it. Tried a IH 706 and disk will raise and lower without a problem but if raised (because of 1466 problem) 706 will not lower disk. Help!!!!!




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j funk

07-09-2006 20:28:18




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 Re: 1466 Hydraulic Problems in reply to Brian T from OH, 07-08-2006 21:02:51  
i would change the hydraulic oil filter on the side. we run a 706 and 1486 and if there is a problem with the hydraulics it's the quickest eazy fix



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joemn

07-09-2006 17:40:05




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 Re: 1466 Hydraulic Problems in reply to Brian T from OH, 07-08-2006 21:02:51  
check the pin at the valve/contol arm shaft mine was loose and just about same problem



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the tractor vet

07-09-2006 06:53:35




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 Re: 1466 Hydraulic Problems in reply to Brian T from OH, 07-08-2006 21:02:51  
Change you coupler ends they are going bad on the tractors and on the hoses.



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Weldon K

07-09-2006 19:05:30




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 Re: 1466 Hydraulic Problems in reply to the tractor vet, 07-09-2006 06:53:35  
I agree with tractor vet. I had same problem on a round baler . Could raise bale dump gate but would not go back down. Male tips on baler hose were Ford-New Holland which looked nearly identical to original old style IH (56 series tractor)and had worked well for several years. I changed male tip to genuine IH style . Problem solved.



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IaGary

07-09-2006 02:27:57




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 Re: 1466 Hydraulic Problems in reply to Brian T from OH, 07-08-2006 21:02:51  
Brain I believe it could be in your cylinder.

Is this a IH cylinder with the little pin for the depth stop?

Got a test for you.

Next time it locks up, try raising again and then back down slow.

If it goes down it has to do with the depth stop in the cylinder not releasing to go back down.

I have a IH cylinder that does this.

Gary



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JJK

07-08-2006 22:51:06




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 Re: 1466 Hydraulic Problems in reply to Brian T from OH, 07-08-2006 21:02:51  
Does your control lever have a lot of slop or free play in it? Possible that the spool isn't reaching its full stroke why it will raise and not lower. Lowering the disc shouldn't take any power to do so I don't suspect the relief valve. Are you using the IH couplers or Pioneer's with the adaptors? Could be that there's to much pressure in the hose that the tip won't open up and release until the line is cracked loose to relieve the pressure. Might be why the 706 won't lower the disc after the 1466 raised it. I'm kinda guessing this without knowing exactly how the hydraulics are acting when it is working. Are they normal, slow, things like that.

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