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  1. #1
    New Member
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    Feb 2012
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    Blandford, Ma
    Tractor
    NH 2120

    Default 2120 PTO stops and starts

    Own a NH 2120 with HSS that I bought new in 1997. Great machine but lately the PTO pops in and out when running an implement. If I push clutch in and out it will come back. Any ideas on what the fix is? Thanks.

  2. #2
    Epic Contributor Soundguy's Avatar
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    Mar 2002
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    48,338
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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: 2120 PTO stops and starts

    do you have to shift the pto back in, like it became disengaged? or merely pushing the clutch in and releasing pedal fixes it?

    soundguy

  3. #3
    New Member
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    Feb 2012
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    5
    Location
    Blandford, Ma
    Tractor
    NH 2120

    Default Re: 2120 PTO stops and starts

    Just depressing the clutch brings it back. Sometimes it take a couple of tries, then the PTO works fine.

  4. #4
    Gold Member
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    Jan 2012
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    341
    Location
    Winchester Ky
    Tractor
    Allis Chalmers ED 40

    Default Re: 2120 PTO stops and starts

    If the engagement lever does not jump back to neutral, it's probably not a gear related problem. There is a one way sprag clutch in the PTO drive train that could have an issue. Looks like it's in the rear housing, under the 3 Pt lift housing. Don't know what you use the tractor for, but this sprag would only come into play when decelerating with a high momentum load on the PTO. A built-in over running clutch.

  5. #5
    New Member
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    Feb 2012
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    5
    Location
    Blandford, Ma
    Tractor
    NH 2120

    Default Re: 2120 PTO stops and starts

    When this problem started, I had my log winch on the tractor. When I engaged the PTO (at idle), it turns for a short while then just stops with no load. The PTO lever does not go back to neutral. Sometimes the PTO comes back on its own and sometimes I need to depress the clutch and it comes back. When the PTO is turning, it works fine.

  6. #6
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
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    48,338
    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: 2120 PTO stops and starts

    when it comes on.. does it pull full power.. or slip?

  7. #7
    New Member
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    Feb 2012
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    5
    Location
    Blandford, Ma
    Tractor
    NH 2120

    Default Re: 2120 PTO stops and starts

    Full power with no slipping when it works.

  8. #8
    Super Member RickB's Avatar
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    Sep 2000
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    7,485
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    Eastern NY
    Tractor
    Case 885, Ford 4000

    Default Re: 2120 PTO stops and starts

    Quote Originally Posted by DickG View Post
    Full power with no slipping when it works.
    Your sprag is shot.
    We have too much gun control.
    What we need is more idiot control.

  9. #9
    Epic Contributor Soundguy's Avatar
    Join Date
    Mar 2002
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    48,338
    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: 2120 PTO stops and starts

    i can remember reading about some kubota subcuts that had an ORC delete kit you could put on them to combat multiple failures... I havn't heard much about fnh units failing though.. do you see alot of this?

  10. #10
    Veteran Member whodat526's Avatar
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    Apr 2010
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    1,529
    Location
    deridder louisiana
    Tractor
    fords

    Default Re: 2120 PTO stops and starts

    Quote Originally Posted by Soundguy View Post
    i can remember reading about some kubota subcuts that had an ORC delete kit you could put on them to combat multiple failures... I havn't heard much about fnh units failing though.. do you see alot of this?
    i changed three of them last year on 1715 fords

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