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Subject: 9N hyd linkage

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William    Posted 11-19-2018 at 21:58:44 [URL] [DELETE]        [Reply] [Email]  
  • 9N hyd linkage
  • Anyone have a picture of 9n linkage the way it's supposed to look, so i can see if i can fix it.I would appreceate your help this thing is running me crazy.

    Tim Daley(MI)    Posted 11-20-2018 at 04:19:32 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N hyd linkage
  • HiYa William-
    In our MANUALS forum you can get all of the original 9N/2N Master Parts Catalogs scanned and downloadable for free. They all have the hydraulic systems in detailed exploded views as well as their part numbers. Also, the I&T F-04 Manual has a chapter on the hydraulic systems and how to remove and repair them -see picture of a page below. In addition, there is a good DIY video on FORD 9N Hydraulic repair -search for J&D Productions, "Wrenching With Rachel". The 9N/2N systems are different than the 8N and NAA systems so be aware. ALL require a certain procedure to remove the top cover correctly. I highly recommend you get the DVD and watch it first so you understand the procedure. What is going on with yours and why do you think you need a new part? Unclear to which linkage you refer to. The 9N-640 Control Valve Assembly is available new. Most all of the wear components in the hydraulic system are available new today so if the pump base isn't cracked, you can rebuild them again. Dennis Carpenter & JUST8Ns are the best places to buy from. FYI: FORD TRACTOR has been out of business since the early 90's. Most all parts for them however are available from several aftermarket suppliers but it matters who and where you buy from. Even Case/New Holland sells the aftermarket parts nowadays -no part is made by FORD any longer. Carpenter is the only licensed by FORD supplier to repop some of the original parts and he owns a lot of the original tooling that Ford used. Tell us more about what your lift system is doing or not doing. We may be able to save you some money before going out and buying a part you don't need. It's best to first get the essential manuals and read up before doing any wrenching.


    Tim Daley(MI)

    William    Posted 11-20-2018 at 13:20:30 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N hyd linkage
  • On the picture number 54 were it works the linkage, the linkage has a grove in it. It isn't flat like the picture looks. I have very little quadrant control. When the lever is at the bottom bushog is on the ground 1 1/2" up and the bushog is at the top. In the parts section of the manual the lever fork looks straight but mine looks bent. Thank You For Your Help.

    Jack - Iowa    Posted 11-20-2018 at 20:09:50 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N hyd linkage
  • From the FO-4 manual (Copyright 1953)

    To check quadrant adjustment, place an implement (or a weight of 200 - 300 pounds) on the lift arms and move the touch control lever downward. The lift arms should start to lower when the touch control lever reaches a point 2 5/8" to 2 3/4" down from the top position. If the lift arms start moving before or after the specified lever position, loosen the 4 quadrant attaching screws and move quadrant toward front or rear as required.

    Easier to type that than to post a picture!

    This is what Harold was telling you to do. The inner end of No 54 is offset to provide a cam type action.

    Not sure what you are referring to as the lever fork


    HCooke    Posted 11-20-2018 at 17:51:50 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N hyd linkage
  • "When the lever is at the bottom bushog is on the ground 1 1/2" up and the bushog is at the top"

    Try adjusting the quadrant. Loosen the 4 hex bolts and try moving it to the rear.

    You do know that 9Ns do not have position control. The lift isd either up or down. Although it should not move to the top until the handle is about 2" from the top.

    William    Posted 11-20-2018 at 21:26:11 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N hyd linkage
  • Tank's fellows that is what i'm talking about. Have adjustment but lever down is down 1"off the bottom is up. The fork inside has a lot of ware on it so when i try to adjust it;s all the way. My tractor is a 39 year model all my linkage is cast iron not metal. I have a TO20 top cover but it has a steel stamped linkage. Pictures of the cast iron one look like they have a plate on them maybe welded.

    R geiger    Posted 11-20-2018 at 15:24:17 [URL] [DELETE]        [Reply] [No Email]  
  • Re: 9N hyd linkage
  • On your 9n you have no position control, it is either up or down. a lot of people use an aftermarket device to give you position control or just use chains to stop the brush hog where you want it.
    position control came out with the 8n.

    William    Posted 12-01-2018 at 22:53:13 [URL] [DELETE]        [Reply] [Email]  
  • Re: 9N hyd linkage
  • I cured the problem i took the linkage off the TO20 top cover and installed it on mine.My 39 linkage was wore down to much, the TO20 linkage was made from steel what some people call stamped it has a wear plate bolted where my linkage was wore down. Thank's everyone for your help. William Bairefoot

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