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Farmall & IHC Tractors Discussion Forum
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Explanation of Farmall C hydraulic system?

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Tommy H

12-30-2003 19:34:22




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Hey, Ive been looking at the hydraulic system on the C lately and was just a curious how it all works.
My only experience with hydraulics is on out John Deere 445 efi, and Front loader.
The Hydro Tranny pumps fluid and it goes through a system of valves and out to the cylinders.

On the C, i see hoses coming off of a block next to the distrubutor. Going back to a Large block under the fuel tank. Then rods going up to the levers.
On out JD you push up on the levers and the implements drop, and have down pressure. Pull back and the raise. The levers on the C are different, you push them up, and they sta where you put them? They dont return to a central point.

on The JD the lever are stacked, upper and lower. The top lever lifts the bucket and or the 3 point in the back, and the belley mower, the lower lever lifts the boom of the loader.

On the C there are 2 levers, left and right..does on do one side and the other does the other side?

Thanks!

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fergfarm

12-31-2003 21:27:19




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 Re: Explanation of Farmall C hydraulic system? in reply to Tommy H, 12-30-2003 19:34:22  
The system works like most 3 point lift systems.The factory remote valve works like the older loader valves .



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CNKS

12-31-2003 18:41:03




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 Re: Explanation of Farmall C hydraulic system? in reply to Tommy H, 12-30-2003 19:34:22  
Touch Control has down pressure also. The levers are for front mounted implements, and rear implements attached to the front rockshaft. If you put a 3 point on it, you can add a spool valve and lever to run to the hyd cylinder, and it will work the same way as JD, you then have 3 levers. There is also a factory option for rear mounted or trailing implements, I assume it works the same way, but I have never seen one. On most JD and other tractors, the 3 point lever stays where you put it as you say, it's the remote that snaps back.

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Randy in NE

12-31-2003 04:45:26




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 Re: Explanation of Farmall C hydraulic system? in reply to Tommy H, 12-30-2003 19:34:22  
If you look you will have three rockshaft arms. The left lever will control one of the rockshafts on the left. The right one will control the right rockshaft and the other rockshaft on the leftside. This allows you several ways to configure your implements for lifting/lowering. The rockshafts are under power both directions. The control unit has a bypass valve inside it so that you can postion the rockshafts at any position and they will stay there. It is important that you have the levers in the back postion when you are checking the fluid level in the control unit. And yes the control unit can be under pressure so remove the fill plug on the left side of it with caution. Loosen it and wiggle it to relieve the pressure. Been there and done it.

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Tommy H

12-31-2003 12:21:10




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 Re: Re: Explanation of Farmall C hydraulic system? in reply to Randy in NE, 12-31-2003 04:45:26  
I removed the plug the other day and got hosed with fluid...not pleasant..



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Farmer Bob

12-30-2003 20:30:14




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 Re: Explanation of Farmall C hydraulic system? in reply to Tommy H, 12-30-2003 19:34:22  
Yes.



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