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Harry Ferguson Tractors Discussion Forum
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to30 hydralics

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RICK

11-29-2003 17:54:39




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the hydralics on my to30 wont hold in the up position unless the pto is constantly running as soon as i push in on the clutch the implement i have attached starts going down. will be all the way down in probably 15 tp 20 seconds how hard is it to rebuild the hydralics




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Dennis

12-03-2003 18:29:12




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 Re: to30 hydralics in reply to RICK, 11-29-2003 17:54:39  
Rick,
Don't know if you have solved your problem or not but I do have all the parts here for the hydraulic system for a TO 30 including the pump, cylinder, etc. They are from a parts tractor which I believe was in pretty good shape - thus far I haven't found anything that was not in good shape! You can email me at [email protected] if you need anything!

Dennis



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Ray,IN

11-29-2003 18:45:56




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 Re: to30 hydralics in reply to RICK, 11-29-2003 17:54:39  
Rebuilding the hydraulics is not really hard, just tedious and time consuming-IF you have the shop manual. Before you decide to spend lots of money, there are some simple tests you should perform. First, remove the rt side cover. Start your tractor and raise the hyds;then inspect the insides with a strong flashlight. There should not be any spraying, trickling, of oil anywhere, some dripping is normal. You will see any leaks and close inspection will determine where it originates. If the oil surface is turbulent the relief valve is either stuck open or broken, and may be changed without draining the oil if you don't mind getting greasy. If you don't find any leaks then you may begin using your credit card for buying a hyd pump rebuild kit or a rebuilt one($$$$) and a hyd cylinder rebuild kit.I think the relief valve or the hyd cylinder piston is the problem. That's it in a nutshell.

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Gary-Miss

12-01-2003 19:03:50




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 Re: Re: to30 hydralics in reply to Ray,IN, 11-29-2003 18:45:56  
I just finished rebuilding the lift on my son's TO30. It uses the same kit as the N series Ford. It's available for $9.00 most places. You can convert the old three ring piston to the O ring type which works much better. Make sure you hone the cylinder so there aren;t any sharp edges. Also, DO NOT pick up the old piston without a grease rag. Those old sharp rings will cut your fingers to the bone. Voice of experience. Ford updated their system to use Hydraulic oil rather than the 80 weight mineral oil. It works much better. There is a good chance you have water in your system. Drain it kin all three places, the transmission, under the pump and the differential.

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Ray,IN

12-01-2003 19:34:52




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 Re: Re: Re: to30 hydralics in reply to Gary-Miss, 12-01-2003 19:03:50  
Gary, If you used a Ford relief valve you reduced your hyd pressure by approx 500lbs. The Ford valve is set at 1,700#, the H. Ferguson valve is set at 2,200#. What did you buy for $9? The replacement parts to rebuild the pump and lift cylinder, list for much much more here and other internet sites.



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Gary-Miss

12-03-2003 17:32:01




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 Re: Re: Re: Re: to30 hydralics in reply to Ray,IN, 12-01-2003 19:34:52  
I was luckyt and didn't have to change the relief valve. Glad you told me about the difference. I make my living working on nothing but tractors (of all kinds), but, I still learn something new every day. Most of the time, the changeover to the O ring type piston and cleaning the poppet valves where they slide up and down on their guide will take care of nearly all of their problems. Dennis Speed of Speedco here in Columbus sells the kit for $9.00. The replacement piston is less than 20 bucks. His telephone number is 662-327-0314. He is a former Ford tractor parts man and is very knowledgeable and a nice guy to boot.

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