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  1. #1
    Silver Member Uncle Wayne's Avatar
    Join Date
    May 2009
    Posts
    172
    Location
    Moulton, Alabama (Lawrence County)
    Tractor
    4320 John Deere

    Default Should the PTO be engaged when lifted?

    I've just bought a 4320 John Deere with a MX6 bush hog. It's the first 3 pt. hitch cutter I've owned. My previous was a 6' KK drag type so this is a new experience for me. I never disengaged the drag type cutter when turning but I wasn't able to pick it up either.

    With the new tractor I can lift my cutter and make much sharper turns.

    Should I disengage the cutter when in the raised position for safety reasons or because of possible damage to the equipment or is it all right to keep it engaged?
    Wayne

    "Things turn out best for the people who make the best of the way things turn out." - John Wooden

  2. #2
    Veteran Member jimmysisson's Avatar
    Join Date
    Jul 2005
    Posts
    2,091
    Location
    W.Mass
    Tractor
    1993 NH 2120 (the best), 1974 MF 135 (sold, but solid), 1947 Farmall A (bought, sold, bought back, sold again), 1956 MH50 lbt (sold, in 1980, darn it)

    Default Re: Should the PTO be engaged when lifted?

    Steeper angles on the u-joints in the PTO driveshaft accelerate the wear on those joints, but without much load I don't think it is significant. If I'm turning during field mowing and no one is around, I don't disengage the pto. In fact, if you have an electric or hydraulic pto clutch, that probably puts more stress on the driveline than any brief high angularity. Still, safety first, so if anything or anyone you value is nearby shut it down.
    Jim
    "Anything worth doing is worth doing slowly" Mae West

  3. #3
    Silver Member
    Join Date
    Aug 2005
    Posts
    127
    Location
    Southwest Maine
    Tractor
    JD 5205 JD 5203 Ford 3600 JD 850 JD 755 Kioti DK65

    Default Re: Should the PTO be engaged when lifted?

    Quote Originally Posted by jimmysisson View Post
    Still, safety first, so if anything or anyone you value is nearby shut it down.
    Jim
    If you're concerned about safety then it shouldn't be picked up. My MX-6 will spin for minutes after shutting off the PTO. Waiting for it to stop would make for some pretty long turning times.
    Greg

  4. #4
    Veteran Member
    Join Date
    Jul 2004
    Posts
    1,924
    Location
    Bancroft, Ontario
    Tractor
    JD4300

    Default Re: Should the PTO be engaged when lifted?

    On my JD4300 when I pull the lever to shut off the PTO it stops suddenly. Unless I have idled the engine down to 500rpm this snaps shear pins. Ditto for start-ups.
    I just try to adjust the angle of the PTO shaft so its not too extreme, either in the up or down position. If I'm forced to choose then I figure that the up position normally has less load on it so it gets more angle.
    My old Bota had a clutch that would let the PTO "spin down" or engage gently

  5. #5
    Silver Member Midsouth's Avatar
    Join Date
    Feb 2008
    Posts
    156
    Location
    Okolona,MS
    Tractor
    Mahindra 3525

    Default Re: Should the PTO be engaged when lifted?

    I don't when making sharp turns but i only lift the cutter up to get the tail wheel about 6 inches to a foot off the ground.

  6. #6
    Elite Member
    Join Date
    Jul 2006
    Posts
    3,015
    Location
    midwest
    Tractor
    JD 4520, Toolcat 5610, Bobcat S300, Case-IH 125 Pro, Case-IH 245, IH 1086, IH 806

    Default Re: Should the PTO be engaged when lifted?

    I do the same as Midsouth. Just raise it up enough to raise the tailwheel on sharp turns - especially if the ground is rough. On 90 degree turns, I usually just leave it down and turn.

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