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IH656 Draft and Raise Lower Shafts Leaking Fluid

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skyharborcowboy

01-11-2008 21:21:43




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On the tractor that I just bought the control rods for the draft and raise/lower shafts are leaking. I have seen many others 656, 666 etc doing the same. I just bought the o-ring seals to replace the ones on the tractor. How hard is it to replace them? It seems I need to remove the seat and the housing cover under the seat to access an E-Clip to allow the rods to be slid out and then just replace the seals and reverse the removal procedure.

Do any of you have any tips/suggestions for me?

Thanks,

Joe

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skyharborcowboy

01-15-2008 17:11:08




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to skyharborcowboy, 01-11-2008 21:21:43  
Did I remove the correct plug?

Joe



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skyharborcowboy

01-14-2008 16:59:42




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to skyharborcowboy, 01-11-2008 21:21:43  
I removed that hexagonal bolt thing in front of the brass piece and it turned out to be a pipe plug with a long hex bolt head on it. I am not sure why it was like that. Either way, I have not started the tractor yet wanting to hear back from someone.

Joe

PS. Allan, sorry about the mis-spelling of your name.



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skyharborcowboy

01-14-2008 12:35:37




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to skyharborcowboy, 01-11-2008 21:21:43  
Allen,

I think I found the drain pipe but it is at the rear of the cavity back behind everything. How do you gain access to that to remove it? I assume it is still a pipe thread but I have no idea how to get any tools back there to remove it.

Joe



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skyharborcowboy

01-14-2008 11:57:11




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to skyharborcowboy, 01-11-2008 21:21:43  
Allen,

I took off the top cover today and I dont see a pipe. The only thing I see that is not in your photo is in the very top right in your photo (which would be front left side on the tractor) is right in front of the horizontal brass hexagon is another steel hexagon. There does not appear to be any holes in it. Is that the part I am supposed to remove? I felt around the bottom of the cavity and didnt feel any other place for a drain pipe to be installed.

Joe

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skyharborcowboy

01-12-2008 17:56:57




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to skyharborcowboy, 01-11-2008 21:21:43  
I posted a question about my hydraulic system and since the subject relates here as well I figured I would give you an update as well.

Here is an update. My neighbors son jumped up on the tractor today and grabbed the steering wheel to lift himself up. I noticed that the wheel was just spinning with no resistance whatsoever which didnt seem right to me. The steering is now much worse then earlier reported. There is fresh hydraulic fluid in the tractor. I need to locate the filter as I am not quite sure where it is (I havent seen any photos of its location yet). The level on the dipstick is correct. How much higher (on the dipstick above the full mark) would it be with the extra 5 gallons?

Thanks,

Joe

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karl f

01-12-2008 11:40:32




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to skyharborcowboy, 01-11-2008 21:21:43  
looks like you got some good hints. i know mine has to come apart, the oil leak lasted too long so the friction disk is disintegrated; the lever won't stay up.
karl f



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Owen Aaland

01-12-2008 11:32:01




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to skyharborcowboy, 01-11-2008 21:21:43  
When the plug is removed the oil simply drains back to the rear frame. You are only changing the level, not to where it returns.

The oil is at a level to keep all the parts submersed in oil to keep condensation from rusting all those pieces in there. A lot of those old tractors have rust on the bottom side of the top cover. How often and how much the tractor is used is a big factor in whether this will be a problem for you.

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skyharborcowboy

01-12-2008 07:04:24




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to Steven f/AZ, 01-11-2008 21:21:43  
In your photo is it completely drained or is that the way it would look when the pipe is removed? In other words, when I remove the pipe where is that oil going to go? How is that area of the tractor filled? Is it pumped in there or at they drain and fill plugs? The tractor is completely new to me (I just got it a couple of days ago).

Thanks,

Joe



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skyharborcowboy

01-12-2008 05:28:01




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to IH2444, 01-11-2008 21:21:43  
Thanks Allan,

That is what I was wondering because I couldnt see how O-rings in that configuration was going to be holding any sort of pressure. What would be the Designed purpose of having so much oil in there in the first place?

Joe



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Allan In NE

01-12-2008 05:42:59




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to skyharborcowboy, 01-12-2008 05:28:01  
There is no pressure in the oil cavity itself; just in the cylinder and plumbing. That housing is more or less just a big milk bucket. :>)

Don't know why they thought that they had to run it so darned full.

Allan



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Allan In NE

01-12-2008 02:29:24




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 Re: IH656 Draft and Raise Lower Shafts Leaking Fluid in reply to skyharborcowboy, 01-11-2008 21:21:43  
Hi Joe,

A wise old-time IH man showed me this trick.

Let me share it with you because where you are headed, ya really don't wanna go. It's a total nightmare of a job. All those roll pins, shafts, linkages, etc. are gonna make you pull your hair out by the roots. Not to mention, if the shaft bores are wobbled out, it is still gonna leak when your are done anyway. :>(

This fix is not by the book, but it works and it will save you two days of cussin', screamin', spittin' and kickin the dog. :>)

This picture is taken from the right side of the tractor standing beside the levers (after the fix).

Take the seat off by removing those bolts at the lower rails. Then, take the remaining bolts out of the cover plate. Very gently lift that cover; if it has never been off of there you can probably even save the gasket too.

The cavity is going to be level full of oil. Clear up to the top.

Standing behind the tractor, you'll find that in the front left/centerish area of the cavity, there is going to be an approximately 2 1/2 or 3" X 3/8" pipe standing vertically.

Unscrew/remove that pipe and the oil will then drain down the 3" to the level where the pipe was screwed in.

See where I'm going with this?

The only purpose of that pipe is to keep the level of the oil clear up to the top of the cavity..... ...burying anything and everthing in there..... including the lever shafts and those pesky, leaky o-rings.

Reinstall the cover plate, gasket and seat assembly. Go have a glass of iced tea 'cause yer done.

Allan

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