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Farmall C

Touch Control Hydraulics

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Tim

07-06-2003 10:29:43

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I have a farmall C equipped with Touch Control for cultivators etc. I am trying to get a continuous flow of oil to power a bale wrapper which has a hydraulic motor. I have tapped into existing 1/4" ports located on the flange that connects the inlet and outlet pipes to the Touch control unit. Everything works fine ( sufficient flow of oil) but only when the touch control levers are being moved. Is there anyway to get a contiuous flow. The tractor is in excellent shape so I hate to make any major modifications.

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Haas

07-07-2003 05:50:14

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Re: Farmall C - Touch Control Hydraulics in reply to Tim, 07-06-2003 10:29:43

As others said, the system only develops pressure when the touch control sytem is activated to move the rockshaft arms. One solution to your problem is to get a block to install in under the manifold connection at the touch control unit. Saginaw County Tractor sells these. The block has the connections to send the oil through a separate system before it goes to the touch control unit. However, I would question if the C has enough hyrdaulic pump capacity to run something with a hydraulic motor. Even it you have enough pump capacity, you may have trouble with overheating due to the low volume of the reservoir and no provision for cooling the oil. You may be better off to just get a hydraulic pump to run off the PTO. You'll have to install a separater reservoir.

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Randy in NE

07-07-2003 05:15:32

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Re: Farmall C - Touch Control Hydraulics in reply to Tim, 07-06-2003 10:29:43

I ran into this problem when I added a remote control valve for a one/two way cylinder. The Touch Control unit is set up with an internal bypass valve. Once the rockshafts reach the desire position in relation to the lever position the oil is bypassed inside the unit. To over come this I took a piece of log chain and connected between on of the rockshafts and one of the culitvator mounting bolts on the front of the tractor. That way the rockshaft never gets to the desired position. Not fancy but it works. Ideally a person would purchase the correct parts from some place like Saginaw County Tractor.

As Hugh MacKay mentions in his post the system has a small volume of oil. I added a 2 1/2 gallon reservoir in the return line. I can raise the hoist on an old grain wagon with no problems.

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Hugh MacKay

07-06-2003 15:57:50

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Re: Farmall C - Touch Control Hydraulics in reply to Tim, 07-06-2003 10:29:43

Tim: On all of these touch control remotes I have seen there is device about 1/2 thick, same shape as manifold with the same 3 hole pattern. It fits between touch control unit and manifold and you use 1/2 " longer studs. That has ports for hydraulic remote hook up.

40 years ago I saw what you are trying to do, and while I cant remember the exact plumbing, I do know the return line went back to fill cap. Also I should warn you touch control does not have a very large resovoir thus you should have added resovoir for remote hydraulic operation, especially motors. Resovoirs were added to these by installing a container above the unit and coupling with a hose through fill cap. For max cooling return line should go to added resovoir.

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