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  1. #21
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
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    48,355
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    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: SOME PTO QUESTIONS

    i'm wearing a back brace right now.

    gotta love it.

    and to think of how much fun I had yesterday bouncing around the pasture on a 69 yr old tractor..

  2. #22
    Platinum Member
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    Feb 2013
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    592
    Location
    Thornville, Ohio
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    No longer Searching. Mahindra 3016 Shuttle

    Default Re: SOME PTO QUESTIONS

    Sounds like a heating pad and Jack Daniels are called for.

  3. #23
    Platinum Member
    Join Date
    Nov 2008
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    879
    Location
    Covington, GA
    Tractor
    JD 870

    Default Re: SOME PTO QUESTIONS

    You may or may not find some answers at this web site. TractorData.com John Deere 850 tractor information

  4. #24
    Platinum Member
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    Feb 2013
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    Thornville, Ohio
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    No longer Searching. Mahindra 3016 Shuttle

    Default Re: SOME PTO QUESTIONS

    JimRB,

    Thanks, I have been using TractorData. I am not certain how accurate it is, but it helps.

  5. #25
    New Member
    Join Date
    Dec 2012
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    17
    Location
    Sussex Co., Va.
    Tractor
    1952 JD B w/44H plow, #5 mower, 1966 JD 2510 Diesel w/JD47 loader. 1945 JD H

    Default Re: SOME PTO QUESTIONS

    Live PTO means that once you engage the PTO then it will turn regardless of anything else you do until you disengage it. Ask to hook the tractor up to a PTO driven implement so you can see if it "works properly." It should operate the machine regardless of clutch position. A lot of the earlier "compact" tractors such as the JD 820 had a 2-stage clutch just like the old Fords, MF, etc. Depressed half way you could stop forward motion and change gears, fully depressed disengaged the PTO. This older method was deemed safer for folks unaccustomed to farm tractors. Depressing the clutch stopped everything.

  6. #26
    Platinum Member sd455dan's Avatar
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    Oct 2012
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    923
    Location
    North Idaho
    Tractor
    Ford 3000-Rhino 554,Co-Op ,Honda ,Gilson riding mowers

    Default Re: SOME PTO QUESTIONS

    Quote Originally Posted by Breen View Post
    Live PTO means that once you engage the PTO then it will turn regardless of anything else you do until you disengage it. Ask to hook the tractor up to a PTO driven implement so you can see if it "works properly." It should operate the machine regardless of clutch position. A lot of the earlier "compact" tractors such as the JD 820 had a 2-stage clutch just like the old Fords, MF, etc. Depressed half way you could stop forward motion and change gears, fully depressed disengaged the PTO. This older method was deemed safer for folks unaccustomed to farm tractors. Depressing the clutch stopped everything.
    That sounds more like an independent PTO, if by machine -you mean PTO driven implement or am I missing something here

  7. #27
    Platinum Member
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    Thornville, Ohio
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    No longer Searching. Mahindra 3016 Shuttle

    Default Re: SOME PTO QUESTIONS

    The tractors I will be looking at(older) will most hopefully have a LIVE pto, with 2 stage clutch and that is what I am seeking.

  8. #28
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
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    48,355
    Location
    Central florida
    Tractor
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: SOME PTO QUESTIONS

    incorrect description.

    that's more like independent pto..

    live pto is generally via 2 stage clutch.. or 2 stages of clutching.. even if seperated by a hand and a foot clutch, 1 stage each.. IE.. hand for axle, foot for pto and axle.. etc..

    Quote Originally Posted by Breen View Post
    Live PTO means that once you engage the PTO then it will turn regardless of anything else you do until you disengage it. Ask to hook the tractor up to a PTO driven implement so you can see if it "works properly." It should operate the machine regardless of clutch position. A lot of the earlier "compact" tractors such as the JD 820 had a 2-stage clutch just like the old Fords, MF, etc. Depressed half way you could stop forward motion and change gears, fully depressed disengaged the PTO. This older method was deemed safer for folks unaccustomed to farm tractors. Depressing the clutch stopped everything.

  9. #29
    Platinum Member
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    Feb 2013
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    592
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    Thornville, Ohio
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    No longer Searching. Mahindra 3016 Shuttle

    Default Re: SOME PTO QUESTIONS

    On the 1980s-1990s tractors I will be looking at, they will have as an option usually a 2 stage clutch with what is typically known as "live" pto. Transmission driven rear PTO that is standard on a lot of gear drive sub compacts even today is driven ONLY when the transmission input shaft is turning, whether in gear or not. Straight out of 1930s engineering and it sucks canal water to use a transmission driven pto. You have to remember that belt driven machinery was typical when transmission pto came about and it did not really matter as the tractor was stationary and brakes locked as it drove the thresher or other machine.

    Mid-mount pto for mowers is usually LIVE or even INDEPENDENT and avoid the associated problems. If all the tractor is used for is mowing, you probably never know. If you attach a rear mount/pull implement with pto (mower / rotary cutter / tiller) you will know real quick. Your pto only turns when you are in motion, or you have to kick it out of gear and let the clutch back out and let the implement chew on the load, clutch, put in gear, and move a bit.

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