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  1. #1
    Platinum Member DIRTROAD's Avatar
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    May 2008
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    SOUTH CAROLINA
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    Carolina Clearing, LLC

    Default PTO PROBLEMS

    I have a 1993 Massey Ferguson 231 with right around 1800 hard hours on it. My problem is that the PTO has started disengaging itself while in use. It is not a violent disengage, but it seems to just very gently slip out of gear. I have been using a bungy cord with very little pressure to hold it engaged and this seems to work just fine.

    My question is...

    What is my problem? Is there a detent inside the case that is worn out or is it a larger issue? How hard of a fix is it? Is it better to keep using it as is with my bungy cord or will the problem get progressively worse and the bungy become ineffective?

    I don't really want to spend any major money on the tractor.

  2. #2
    Veteran Member Travis_R's Avatar
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    Jun 2004
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    South Louisiana
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    '98 MASSEY FERGUSON 231

    Default Re: PTO PROBLEMS

    Quote Originally Posted by DIRTROAD View Post
    I have a 1993 Massey Ferguson 231 with right around 1800 hard hours on it. My problem is that the PTO has started disengaging itself while in use. It is not a violent disengage, but it seems to just very gently slip out of gear. I have been using a bungy cord with very little pressure to hold it engaged and this seems to work just fine.

    My question is...

    What is my problem? Is there a detent inside the case that is worn out or is it a larger issue? How hard of a fix is it? Is it better to keep using it as is with my bungy cord or will the problem get progressively worse and the bungy become ineffective?

    I don't really want to spend any major money on the tractor.
    You have a tough, solid and dependable tractor. Congratulations!

    I have a 231 also. It's a '98 model with 940+ hours. I haven't had this problem with mine. But i haven't used the PTO too much either. Little bush hogging and a little firewood splitting with the "Bark Buster" log splitter but that's it.

    Anyway, maybe it's a bent/wore out shift fork or something? I'm not sure. It don't sound like it would be a major fix though.

    Whatever you find the problem to be, PLEASE POST BACK and let us other 231 owners know what it was.

    Another poster on here, "Farmwithjunk", might be able to help you. He's very knowledgeable with the Masseys...

    Thanks and Good Luck!
    '98 Massey Ferguson 231

  3. #3
    Epic Contributor Soundguy's Avatar
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    Central florida
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    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: PTO PROBLEMS

    with machine off, go to the pto shaft stub on the tractor and yank / push on it.. if there is in / out play.. at all, and it is a mechanical engaged 'dog clutch' / sliding collar pto engagement mechanism, then the in / out play will let the pto shaft walk the collar out of engagement. this usually eventually chews up the ID splines on the collar and OD engagement splines on the pto shaft .. cause can be many things from a slipped / broken retaining ring, bad bearing carrier, bad bearing.. bad wear sleavee.. etc.

    this of course all asusmes a mechanical pto and not a hyd independent pto.

    i'm no a MF guy.. ( farmwithjunk IS ).. however i'm very familair with the type of sliding collar pto engagement I just spke about.. and it's commonly used.. or at least was anyway.

    other possible causes are wear / damage tot he actual fork or shifter mechanism that moves the dog clutch / collar.

    soundguy

  4. #4
    Veteran Member Travis_R's Avatar
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    '98 MASSEY FERGUSON 231

    Default Re: PTO PROBLEMS

    Quote Originally Posted by DIRTROAD View Post
    I have a 1993 Massey Ferguson 231 with right around 1800 hard hours on it. My problem is that the PTO has started disengaging itself while in use. It is not a violent disengage, but it seems to just very gently slip out of gear. I have been using a bungy cord with very little pressure to hold it engaged and this seems to work just fine.

    My question is...

    What is my problem? Is there a detent inside the case that is worn out or is it a larger issue? How hard of a fix is it? Is it better to keep using it as is with my bungy cord or will the problem get progressively worse and the bungy become ineffective?

    I don't really want to spend any major money on the tractor.
    ... I forgot about "Soundguy" (sorry Soundguy!), he is another Very knowledgeable person on here who knows about tractors in general.
    '98 Massey Ferguson 231

  5. #5
    Epic Contributor Soundguy's Avatar
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    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: PTO PROBLEMS

    Quote Originally Posted by Travis_R View Post
    ... I forgot about "Soundguy" (sorry Soundguy!), he is another Very knowledgeable person on here who knows about tractors in general.
    i'm a ford guy mostly.. FWJ is the MF expert.

    still.. many tractors share some similarities.. ford / ferguson perhaps more than others.. but again.. I'm not totally familiar with his model other than seeing them before.. etc. it may have a completely different shifter mechanism..

    soundguy

  6. #6
    Platinum Member DIRTROAD's Avatar
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    Carolina Clearing, LLC

    Default Re: PTO PROBLEMS

    I checked for play in the PTO shaft itself. Everything is tight both up & down and in & out. No leaks around the seal that would indicate prior movement either. No movement whatsoever.

  7. #7
    Super Member Farmwithjunk's Avatar
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    Mt Washington, Kentucky
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    Where do I begin.....

    Default Re: PTO PROBLEMS

    Most likely a problem with the detent on the PTO shift lever. Relatively easy fix.
    There are three kinds of men;
    1.) The ones that learn by reading
    2.) The few who learn by observation
    3.) The rest of them have to pee on the electric fence for themselves.

  8. #8
    Epic Contributor Soundguy's Avatar
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    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: PTO PROBLEMS

    no pto slop is a good sign so far.

    hopefully the detent is just week as FWJ said.

    keep us posted.

    soundguy

  9. #9
    Veteran Member Travis_R's Avatar
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    '98 MASSEY FERGUSON 231

    Default Re: PTO PROBLEMS

    Dirtroad,

    Where does the needle on the temperature gauge usually stay at when you're bush hogging with the 231 ?

    My temp gauge is original. Half of the gauge where the needle reads is "green" (normal operating temperature) and the other part is "white" (meaning it's running on the hot side) and the radiator needs to be cleaned.

    For some reason, I'm thinking mine is running more on the "warm" side than it should. I NEVER let the needle get in the "white" because I'm scared that's too hot for it and may blow a head gasket.

    With the radiator cleaned out, while bush hogging (meaning tractor's under load), I'm guessing the needle STAYS about a quarter inch or so from the "white" area of the gauge.

    Also, I sometimes have to add anti-freeze to the radiator, but not often... Is this normal??

    I'm just concerned, that's all...
    '98 Massey Ferguson 231

  10. #10
    Epic Contributor Soundguy's Avatar
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    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: PTO PROBLEMS

    is it boiling out.. or are you getting it in the crank case oil.

    if it was a gasser I'd say look at the plugs for steam cleaning.

    soundguy

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