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Harry Ferguson Tractors Discussion Forum
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questions

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Elvin Frank

03-14-2008 15:57:15




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this will be the first of many questions i'm sure, - The lift went up the other day then would not come back down, matter of fact it was going up even when the control lever was all the way down, it couldn't even be pushed down that was two days ago, today it had bled all the way down, what causes that? - Needs the pto shaft seal replaced, can i pull the shaft out without stuff on the inside coming apart?

Thanks in advance

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John (UK)

03-15-2008 07:03:27




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 Re: questions in reply to Elvin Frank, 03-14-2008 15:57:15  
I replied to this one the other day. If the hydraulics continue to lift no matter where you put the control lever then the control valve has stuck or the Control Fork has become detached. Remove the left side round inspection cover below the seat,make sure that the PTO lever is in gear before you do this. You will see the control fork hanging down from the top and disappearing into the oil. WITHOUT starting the engine reach into the oil and feel between the two legs of the fork at the bottom, there should be a thin "bar" running between them, this is attached to the Control Valve. If the "bar" is attached to the two fork legs then you can gently try to move the Fork back-wards and forwards, this should free the valve. If the"bar" is not between the two fork legs then the Control Valve will not move and you will need to gently spread the fork legs enough to put the "bar" back between them and into the hole on each leg. Once you have done this you should have the Valve free..if the Valve still isn't free and you know that the control valve "bar" is between the fork legs then start the engine and put the PTO in gear and using a longish bar or even a thin piece of wood, try to gently move the Control Fork back and forth, this should free the valve for you. NEVER PUT YOUR HANDS IN THE OIL IF THE ENGINE IS RUNNING
The PTO seal can be replaced if you drop the nose of the tractor into a hole 18" deep so the oil will run to the front but the danger there is that the oil seal on the drive shaft from the clutch may be worn and allow oil into the Clutch Housing, better to drain the oil from the THREE drain plugs underneath and then remove the four screws on the housing around the PTO shaft, it should pull out and then you can work on it, if the shaft wont pull out then the shaft is twisted inside and the tractor will need the rear axle coming off at the back of the Transmission. If you need anymore info about all this, just email me and I will send you some written info about it and what you have to do..John

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phil(va)

03-15-2008 05:15:46




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 Re: questions in reply to Elvin Frank, 03-14-2008 15:57:15  
Before you drain the fluid, it would be best to try to find out what is causing the lift problem. John(UK) will probably weigh in with a great set of instructions on that. You can find his posts on this subject by looking in the archives. Don't remove the top cover. You can remove the round side cover(s) and with the engine off reach into the oil and see if the control arm is attached. Don't reach in there with the engine running. After checking that, and after receiving John's advice which is much more complete, you hopefully will find the problem with the lift. If at that point you decide to replace the oil in the rear end and hydraulics, this would be a good time to do so before you tackle the PTO seal. But as another post said, if you want you can drive the front of the tractor in a ditch and avoid losing most of the oil. You can remove the entire PTO shaft by removing the bolts around it and just slide it out. You do not have to worry about messing up anything inside, but of course don't start the tractor. If the seal and bearing look difficult after you get the shaft out, you could take the whole sheebang to a machine shop or MF dealer and have them replace both.

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Richard L

03-15-2008 05:00:08




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 Re: questions in reply to Elvin Frank, 03-14-2008 15:57:15  
Elvin if this is for the one you just got you may want to hear from the more experienced people. there is the chance what is causing your problem may have to have the hydraulics drained to fix it. if that is the case that would be the time to change the pto bearing and what ever else may be wrong then you would know the oil is clean after repairing the hydraulics and cleaning the compartments. Good luck Richard

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Bruce(OR)

03-14-2008 22:58:22




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 Re: questions in reply to Elvin Frank, 03-14-2008 15:57:15  
The PTO seal can be replaced by parking the nose in a ditch. Figure you have about 5-6 gallons of goo back there.



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