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Subject: Ford Jubilee 3 Point Issue

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Matt Buckley    Posted 11-18-2018 at 18:01:17 [URL] [DELETE]        [Reply] [Email]  
  • Ford Jubilee 3 Point Issue
  • HI,
    I am new to this forum and I have a question about the 3 point system on a new to me Ford Jubilee I just purchased. When I try to lift the 3 point it sometimes lifts up and other times not at all. I checked the hydraulic pump out which is a piston style pump and it seems to be keeping primed and working when I pull the top plug off to check. When I lift up the three point it is always very slow to respond. Sometimes it is a few seconds before it lifts. It stays up but when I lower it and try to lift it again it sometimes goes up but most of the time doesn't. It doesn't lift very high either. It lifts up maybe 12" at the most when I lift the position lever up to the top. The hydraulic oil looks clean and clear on the dip stick. Any thoughts on what might be wrong would be appreciated.

    Matt Buckley    Posted 11-19-2018 at 13:24:15 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford Jubilee 3 Point Issue
  • Thanks for the information. I will keep you posted on what I find out.

    Matt Buckley    Posted 11-24-2018 at 07:53:29 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford Jubilee 3 Point Issue
  • I decided to take my Jubilee to a tractor dealership who still had a mechanic very familiar with the older Fords. He thinks it is probably the relief valve sticking but is going to take a look and fix it for me. After looking at the shop manual I just wasn't comfortable taking the 3 point apart and doing it myself. I will let you know what was wrong when I pick the Jubilee up.

    Ultradog MN    Posted 11-19-2018 at 10:37:31 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford Jubilee 3 Point Issue
  • Before I messed around looking for problems under the top cover - ie lift piston, etc I would verify that you have good prime to the pump. That tractor came with a vane pump so yours has been retrofitted to a piston style at some point.
    If the pump chatters and/or the lift arms stutter when you raise them that is usually a sign it's not not holding prime.
    I would buy a pipe fitting with a hose barb and screw it into the test port on the side of the pump. Then hook a clear hose to it and run that back to the fill port on the rear end.
    Start the engine and let it idle. You are looking for a steady stream of oil flowing through the hose. No bubbles or spurts.
    Let it run for a while till you are getting a clear, bubble free, full flow of oil.
    If it does not clear up I would pull the hyd manifold and replace the oring seals on both ends and see if that helps.
    Having live hydraulics was a huge upgrade from the hydraulics the Ns had but they can be fussy and frustrating sometimes if they won't hold a prime.

    Tim Daley(MI)    Posted 11-19-2018 at 08:07:10 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford Jubilee 3 Point Issue
  • HiYa Matt-
    Welcome aboard the NTC! The best group of Ford Tractor guys in the world! Here is a LINK (see below) to an article on hydraulic repair but it is for the 8N system. The NAA/Jubilee systems were a bit different but use the same cylinder and piston. The NAA pump is a servo-controlled, balanced van type, driven off the engine camshaft gear. If the oil is clear and honey-like, and not muddy, milky-brown, or whitish, and you didn't change it, then perhaps the guy you bought it from just replaced the oil prior to selling it. As mentioned, perform a simple test via the inspection covers. Attach a load, raise it up and leave it, then shut down engine. Look up into housing at the cylinder and observe if oil is leaking down from it. If so, your cylinder is worn and needs replacing along with the piston, O-RING, and leather back-up washer/wiper. A new safety relief valve is also needed but if the pump has not been cleaned, it may need to be pulled, inspected, with chambers and valves cleaned and or replaced so be prepared to do some work. The job is not difficult, just time consuming. It is best and highly recommended that you get a buddy to help do the job. Lifting the top cover should be done with two people. Many of us also recommend too you invest the essential owner manuals to help understand and do repairs better. Get a copy of the OEM NAA Operator's Manual; a copy of the I&T F-19 manuals, and a copy of the '39-'53 MPC (Master Parts Catalogue) -all with detailed specifics on all the systems. We have an older version of the F-19 Manual in our MANUALS library, but the newer editions have much more detailed content. ALL of these manuals can be found at JUST8Ns.com as new repops. Keep us appraised of your progress.

    Tim Daley(MI)

    Rustyal    Posted 11-18-2018 at 20:46:29 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford Jubilee 3 Point Issue
  • You need to have the correct fluid. But you can check for fluid leaking around the lift piston first. Look in the side cover and see if fluid is leaking down from the top. Also see if increasing the rpms helps.

    Matt Buckley    Posted 12-09-2018 at 07:40:49 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Ford Jubilee 3 Point Issue
  • My Jubilee 3 point is back and running well after $40 worth of parts and $800 worth of labor. The Relief valve was stuck and new gaskets were installed. It work well. I'm just glad to have a older Ford tractor dealership fairly close by that would work on it for me.

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