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  1. #1
    Member
    Join Date
    Nov 2005
    Posts
    32
    Location
    Gloucester Co, VA
    Tractor
    Hinomoto E18D

    Default U Joints on a PTO Drive shaft Which way?

    The telescoping shaft came apart into the two lengths. The question is which orientation of the U-Joints is correct to reassemble. The actual sliding sections are square tubing so there are two orientations that it can be reassembled. One with the Universal clevis on each end of the shaft lined up, the other with the clevis 90 degrees to each other. Somewhere I read that this was a balance issue but which way? Or is it a non issue. I have seen them on store shelves both ways..

  2. #2
    Super Star Member
    Join Date
    Mar 2008
    Posts
    13,200
    Location
    Northern Fingerlakes region of NY, USA
    Tractor
    Kubota L3830GST, B7500HST, BX2660

    Default Re: U Joints on a PTO Drive shaft Which way?

    The ujoints should line up so that both ujoints are doing the same thing at the same time and they are "in phase"

    Aaron Z
    A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects.
    Robert Heinlein, Time Enough for Love

  3. #3
    Platinum Member
    Join Date
    Feb 2011
    Posts
    828
    Tractor
    Furakawa 351

    Default Re: U Joints on a PTO Drive shaft Which way?

    In "Phase" means they are the same orientation on both ends of the shaft, The yoke on the input must be the same position as the output YOKE. Grease zerts, position do not mater.

  4. #4
    Member
    Join Date
    Nov 2005
    Posts
    32
    Location
    Gloucester Co, VA
    Tractor
    Hinomoto E18D

    Default Re: U Joints on a PTO Drive shaft Which way?

    Thanks, I knew that a long time ago but simply had a big time senior moment. Hate it when that happens.

  5. #5
    Platinum Member
    Join Date
    Feb 2011
    Posts
    828
    Tractor
    Furakawa 351

    Default Re: U Joints on a PTO Drive shaft Which way?

    Quote Originally Posted by Skaning View Post
    Thanks, I knew that a long time ago but simply had a big time senior moment. Hate it when that happens.
    The wife calls it an oldshimer moment, and we all get them, sometimes it is just better to ask, and talking to someone else you validate your first thoughts.

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