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  1. #11
    Veteran Member Birdhunter1's Avatar
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    May 2004
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    1,114
    Location
    Murphysboro, IL
    Tractor
    Ford 3910

    Default Re: 4020 what does this do?

    Quote Originally Posted by DanD78 View Post
    We had a 3020 with a mid pto. We had a 9' mid mount cycle mower. I have never seen another.

    Dan
    Interesting you say that Dan as my uncle has a 2020 with a side mount cycle mower and we were just talking the other day that neither of us has seen one on a John Deere of that era.

  2. #12
    Elite Member Tx Jim's Avatar
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    Jan 2007
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    4,278
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: 4020 what does this do?

    Quote Originally Posted by blueriver View Post
    As said ... My neighbor says his newer model JD has a simple removeable shaft, one end 6 spline and the other 21 spline all he does is pull it out rotate it and stick it back in with the end that he needs on the outside ... now listen thats what he says.
    Newer JD tractors than the 20 series(3020/4020) have reversible pto shafts. On 20 series the shafts require swapping to change pto speeds and spline numbers.

  3. #13
    Elite Member Tx Jim's Avatar
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    Jan 2007
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    Coyote Flats,Tx
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    JD 4255/Kubota M7040 HDC

    Default Re: 4020 what does this do?

    Quote Originally Posted by Roonabeck View Post
    I added an arrow to the splined shaft (perhaps I should have mentioned it has a coating of oil/grease plus many years worth of fuzz on it).

    He had mentioned that it has a forward-facing PTO as well as the regular rear-facing one. Is the stub for the forward-facing one?
    All 3020/4020's had a mid-pto shaft that only operated at 1000 rpm's. To swap stub shafts one needs to nose tractor in a ditch(to limit hyd oil lose) pop out snap ring,pull shaft ,insert other shaft and re-install snap ring.

  4. #14
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
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    4,278
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    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: 4020 what does this do?

    Quote Originally Posted by Duffster View Post
    Winner winner chicken dinner.
    Thanks but I hate CHICKEN

  5. #15
    Elite Member Tx Jim's Avatar
    Join Date
    Jan 2007
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    4,278
    Location
    Coyote Flats,Tx
    Tractor
    JD 4255/Kubota M7040 HDC

    Default Re: 4020 what does this do?

    Quote Originally Posted by mefyj View Post
    Yep... the 1000 PTO shaft in storage position... Your lucky it's still there, most were lost or removed and never replaced. ...and they included such a nice storage placement
    I hope on the tractors you've seen them missing that they plugged the hole to keep out dirt as it opens into diff housing.

  6. #16
    Elite Member Zebrafive's Avatar
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    Aug 2010
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    2,909
    Location
    South West MI
    Tractor
    John Deere 2030, John Deere 6415

    Default Re: 4020 what does this do?

    Mid PTO was an option on my 2030. You can see where the engagement lever would mount, looks like a freeze plug in the shaft hole. There is a bearing suppport at the forward end of the PTO shaft that gets replaced when the mid PTO is optioned and the mid shaft then extends forward with a different bearing support.

  7. #17
    Elite Member Duffster's Avatar
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    Mar 2009
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    4,372
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    Wisconsin

    Default Re: 4020 what does this do?

    Quote Originally Posted by Tx Jim View Post
    Thanks but I hate CHICKEN
    Winnner winner BEEF dinner?
    "If everyone is thinking alike, someone isn't thinking." George Patton

  8. #18
    Veteran Member
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    Default Re: 4020 what does this do?

    20, 30, 40 and I think even the 50 series all had to have 2 shafts. It was also a "wet socket", so oil would come out at a good rate while shaft was out.

    A friend of mine also has a 4020 with the mid PTO. Never seen any attachments for it.

  9. #19
    Silver Member Interlaux's Avatar
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    Aug 2010
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    154
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    Frog Pond Texas 75974
    Tractor
    JD 4610 eHydro w/ 460 FEL, JD 3140 w/GB 660 FEL

    Default Re: 4020 what does this do?

    Alright Brothers let me make sure I've got this right.

    when I pull the 21 spline out of my 3140 (pic att.) hydro fluid will come out so I need to park nose down??

    Thanks again
    Attached Thumbnails Attached Thumbnails -p2050122-jpg  
    JD 4610 eHydro w/460 FEL - best stress relief I've ever had! JD 3140 with SG2 cab and a big loader- a country boys dream, '11 625i with deluxe cab - ride it every night

  10. #20
    Veteran Member
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    Default Re: 4020 what does this do?

    Quote Originally Posted by Interlaux View Post
    Alright Brothers let me make sure I've got this right.

    when I pull the 21 spline out of my 3140 (pic att.) hydro fluid will come out so I need to park nose down??

    Thanks again
    No. Fluid will not come out from where you have the arrow. If you pull the shaft that is in the postion that it turns, fluid will flow out.

    So to that point when you want to change from one to the other. Park the tractor facing down hill. Get the shaft out of the storage position, pull the snap ring on the shaft being used. Pick up the shaft your going to install with 1 hand, then remove the one with the other hand and slide in the one you want to use. If you are quick you will only loose a small amount of fluid (less than a quart). I would also do this when the tractor is cold. Hot fluid can burn and flows faster.

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