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  1. #1
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    massey ferguson

    Default John Deere 750 partially stuck valve in remote lever hydraulic assembly

    I have a John Deere 750 4x4 tractor with a factory front loader. On the remote lever hydraulic assembly for operating the front loader, the valve for curling the bucket works fine (both up and down). Moving the right lever forward and back, I can move its corresponding valve in the valve assembly full in and full out (full range). But moving the left lever forward and backward, I can move its corresponding valve full in, but only partway out, so the front loader drops down quickly but lifts slowly. I have to pull back pretty firmly on the left lever to pull the valve out far enough to get the loader to lift at a decent speed. My guess is that there is gunk stuck in the upper valveç—´ channel preventing it from moving fully out. Anyone know how I can diagnose and clear its channel?

    John Deere 750 partially stuck valve in remote lever hydraulic assembly-valve-asmbly-top-view_lores_960px-jpg

    John Deere 750 partially stuck valve in remote lever hydraulic assembly-valve-asmbly-top-view_closeup_960px-jpg

  2. #2
    Elite Member
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    Northern, IL
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    Branson 2400H, JD X540

    Default Re: John Deere 750 partially stuck valve in remote lever hydraulic assembly

    There should be a cover on the opposite end of that spool (behind the hose connections) carefully remove this cover to see if the centering spring assembly is still correctly assembled. Some of these have a screw that can work loose preventing full movement in one direction

  3. #3
    Veteran Member
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    Dec 2012
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    Williamstown Ontario Canada
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    Kubota M7040 Nuffield 465

    Default Re: John Deere 750 partially stuck valve in remote lever hydraulic assembly

    Sure looks to me like some bolts have fallen out.

    Now the levers do not have a proper pivot to make the spools go in and out properly.



    Dave M7040

  4. #4
    Elite Member
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    Branson 2400H, JD X540

    Default Re: John Deere 750 partially stuck valve in remote lever hydraulic assembly

    Good eyes Dave

    Agree it does look like the pivot bolts are missing.
    Artificial Intelligence will never overcome natural stupidity.

    Branson 2400H MMM & FEL

    JD X540

  5. #5
    Elite Member Zebrafive's Avatar
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    South West MI
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    John Deere 2030, John Deere 6415

    Default Re: John Deere 750 partially stuck valve in remote lever hydraulic assembly

    Good call DaveM7040

    Here is a drawing from JD parts catalog that might help
    Attached Thumbnails Attached Thumbnails John Deere 750 partially stuck valve in remote lever hydraulic assembly-750scvlevers-gif  
    John Deere 2030 JD 245SL Loader
    John Deere 6415 mfwd JD 640SL Loader

  6. #6
    Elite Member Zebrafive's Avatar
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    South West MI
    Tractor
    John Deere 2030, John Deere 6415

    Default Re: John Deere 750 partially stuck valve in remote lever hydraulic assembly

    You could still have problems with the valve itself. Check under covers 11 & 12. NOTE there are small parts, springs, balls that could get lost!!!!
    Attached Thumbnails Attached Thumbnails John Deere 750 partially stuck valve in remote lever hydraulic assembly-750valve-gif  
    John Deere 2030 JD 245SL Loader
    John Deere 6415 mfwd JD 640SL Loader

  7. #7
    Veteran Member
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    Kubota M7040 Nuffield 465

    Default Re: John Deere 750 partially stuck valve in remote lever hydraulic assembly

    Before diving into the valve itself, it is a rare occasion when you can make things better without special skills. Far more likely to end up with a bigger problem.

    The missing parts is your problem. Should be a cheap and easy fix even without the proper parts.

    Dave M7040

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