1026R Transmission Input shaft
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Thread: 1026R Transmission Input shaft

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    gngyoung's Avatar
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    1026R Transmission Input shaft

    Gentlemen,

    I've just completed my 50 hour maintenance routine myself. I noticed splines on the the main shaft running from the engine to the transmission are not well engaged. I havent been able to get an accurate measurement of spline engagement however I roughly measured it with a piece of wire and its between 3/8" and 1/2" of engagement between the transmission input spline and the mating spline of the universal joint casting.

    I've reported it to my Dealer. They checked with JD and there are no recalls however the dealer locally reported other 1026R's on the lot being similar in appearance. Take a look at your own tractors. We may have a first model year problem and maybe there is no problem at all. What do the 2305's/2320's etc. look like? Is this a common issue? I hate it when a dealer tells me "Yeah, they're all like that!!"

    Why do I consider this to be an issue? Well for starters to replace this splined driveshaft joint involves removing the transmission from the frame or removing the engine to get enough clearance to remove/replace the drive shaft. When the spline wears, (it will if there is only marginal spline engagement) combined with universal joint wear, which will accelerate spline wear, there could be a situation where the warranty is over and the repair bill could be hefty, particularly if the input shaft to the transmission is damaged.

    Check yours and post your findings.

    Thanks
    G
    Attached Thumbnails Attached Thumbnails IMG_2314.jpg  
    2011- 1026R, H120 loader & Ballast Box, 60D Autoconnect mower w/auto-connect and hydraulic lift, I-Match quick hitch, Frontier 3pt hitch receiver, Frontier SS2036B spreader, 260 backhoe, John Deere 54 Front Blade, Landpride BB1048 Box blade

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    neeltburn's Avatar
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    While I don't have a measurement for you, I can say that my 2305 does not look like that.
    Neel

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    Senior GTT Super Slacker Gizmo2's Avatar
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    Good post, think I'll follow along.
    Keith

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    KHOP's Avatar
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    1026R transmission shaft

    GNG, mine is the same way. While laying on the shop floor with a flashlight, I was getting myself familiar with the mechanics of the 1026. I was too concerned to find the drive shaft coupler just barely attached to the tran shaft. I hope we can find out if this is standard, or if we need the dealers to adjust them. I'd do it myself if it were ok with the warranty and all. Please keep us posted Thanks KHOP

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    Looks like they are all different.

    The three models you are talking about are all different. Here are the part diagrams for each. I am thinking the 2305 and 2320 are OK. I do not recall this being an issue when looking at my 2305.
    Attached Thumbnails Attached Thumbnails 1026 Drive shaft.jpg   2305 Driveshaft.jpg   2320 Driveshaft.jpg  
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    Jrs1959's Avatar
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    Both of mine are showing the same engagement....don't know how far the spline is inserted though!
    Attached Thumbnails Attached Thumbnails IMG_0483.jpg  
    Cheers

    Bob

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    Tomfive's Avatar
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    Yikes! I haven't even had my 1026R delivered yet, and now this has me worried.

    It appears on Bob's (Jrs1959) photo that you may be able to measure engagement by sticking something through the spider side of the yoke. It looks like the U-joint has the female spline cut right through, it'll be a rough measurement but you can probably get a good idea of how far the shaft is inserted.
    Tom

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    Captain Hook Kennyd's Avatar
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    Wow, great post!

    I suggest anybody with one of these units contact the dealer to let them know you demand answers...
    Kenny

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    Have to wonder if JD used the same Driveshaft for both the 1026 and the 2320? They do however have different part numbers.
    Keith

    JD 2320, 200CX FEL/61" bucket , 46 BH/16" bucket, Artillian Forks, 72" Snow Blade, Landscape Rake, Ballast Box, PHD,
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    Quote Originally Posted by Tomfive View Post
    Yikes! I haven't even had my 1026R delivered yet, and now this has me worried.

    It appears on Bob's (Jrs1959) photo that you may be able to measure engagement by sticking something through the spider side of the yoke. It looks like the U-joint has the female spline cut right through, it'll be a rough measurement but you can probably get a good idea of how far the shaft is inserted.
    Will take a measurement tonight and update.........That photo was taken back during delivery to show lack of fan. It looked odd then but didn't really think much of it until this thread started. The more I look at the photo, the less I believe is actually engaged!!!!
    Cheers

    Bob

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