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Repair of the hydraulic pump, the saga is now complete

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tst
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Re: Repair of the hydraulic pump, the saga is now complete

Postby tst » Fri Jan 31, 2020 9:35 pm

if the oil is leaking at the selector shaft it does not need a rebuild, you can pull the shaft from the outside and replace the oring that is leaking and a new boot if needed

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BJM68
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Re: Repair of the hydraulic pump, the saga is now complete

Postby BJM68 » Fri Jan 31, 2020 9:44 pm

Thank you for the info I had looked at parts manual and did not read the description of the part Will have to pay more when I attempt the rebuild

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Glen
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Re: Repair of the hydraulic pump, the saga is now complete

Postby Glen » Fri Jan 31, 2020 11:27 pm

Hi,
If the Touch Control was working normally except for the leak at the front of it, you may not need to rebuild the Touch Control block.
If the only leak is at the control valve on the front of the block, the valve slides out the front. It has an o ring that seals it. If there are no leaks from the head end, or rear end, of the block, you don't need to disturb that end.

Below is a listing at TM Tractor for the Control Valve o ring. It has a pic of where it goes. :)

http://www.tmtractor.com/new/hy/674fp.htm

You could rebuild the unit if you want to, sometimes they are dirty inside, sometimes the strainer screen is broken.

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ricky racer
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Re: Repair of the hydraulic pump, the saga is now complete

Postby ricky racer » Sat Feb 01, 2020 7:20 am

From a cost stanpoint, if you have to have a machine shop do work on pump components, it's going to be cheaper to open the housing to accept a lip seal than repairing the shaft. The lip seal can be positioned so it rides on an unworn section of the shaft.
The other advantage of using a lip seal is, it's a much better shaft seal than an oring.
Last edited by ricky racer on Sat Feb 01, 2020 11:09 am, edited 1 time in total.
1929 Farmall Regular
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Fordman
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Re: Repair of the hydraulic pump, the saga is now complete

Postby Fordman » Sat Feb 01, 2020 10:55 am

I just had Tst rebuild my pump and machine the housing for the lip seal. Did a great job and now I don't have to worry it. Cost was very reasonable as well. Might want to send him a PM

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BJM68
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Re: Repair of the hydraulic pump, the saga is now complete

Postby BJM68 » Sun Feb 02, 2020 6:30 pm

Thanks again for your expert direction I removed the control valve and the o ring is quite hard and did not obviously secure the seal I will order next week and get it reinstalled

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AL Farmall Boy
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Re: Repair of the hydraulic pump, the saga is now complete

Postby AL Farmall Boy » Wed Feb 12, 2020 8:57 am

Shane N. wrote:I was afraid of it bending as well, I guess as close as it is to the end and as small as it is, the 3 or 4 I’ve done didn’t bend.


Shane did a wonderful job of repairing mine by welding the shaft then turning it back down, and it is like brand new. Could not ask for any better repair!
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ShawnAgne
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Re: Repair of the hydraulic pump, the saga is now complete

Postby ShawnAgne » Sat Feb 15, 2020 7:40 pm

Wow this was an old thread. Think I posted an update thread or two since, but anyways. I had Shane convert the pump over to an oil ring, worked excellent, till I plowed a wet garden. DUe to extension previous owner added to the arm it blew the pump Shane fixed. I got a 2nd pump from Tim Talleur and all has been working just fine. This pump is ready to be sent back to Shane, but I just haven't remembered to do so yet.
Shawn Agne


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