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Fiat 94 series

  • 25-07-2017 11:49am
    #1
    westland81
    Registered Users, Registered Users 2 Posts: 14 ✭


    Folks,
    Fiat 82-94 used to crunch while engaging the PTO. Now I have to turn off tractor and then engage PTO lever then start tractor even to sow top dressin.
    Anyone have experience of fixing this or came across this before?

    I am assuming it is something to do with the hand clutch engaging inside the gearbox - have already replaced cables etc just to make sure it wasnt a broken clutch cable.
    Cheers


Comments

  • #2
    Muckit
    Registered Users, Registered Users 2 Posts: 11,173 ✭✭✭✭Muckit


    Your clutch is gone.


  • #3
    westland81
    Registered Users, Registered Users 2 Posts: 14 ✭westland81


    Gears etc are fine though and have been towing 4 ton every weekend without any slipping of the clutch.
    Is the hand clutch and pedal/foot clutch operating the same release fork inside gearbox ?


  • #4
    Nekarsulm
    Registered Users, Registered Users 2 Posts: 11,297 ✭✭✭✭Nekarsulm


    No, two separate release forks.

    Pretty unusual for the PTO clutch to go before the drive clutch. Perhaps your PTO release bearing is buggered or seized.
    But either way the two clutch plates and pressure plates all come as a pre assembled unit.

    The circular clutch disk that mates with the tractor flywheel is the PTO one. The transmission clutch has the 6 phosphor bronze "buttons".
    These usually have the false flywheel and matching pressure plate scored beyond repair by the time the buttons are worn out, hence the entire replacement unit.

    From memory, you're looking at about 600 euro.


  • #5
    Nekarsulm
    Registered Users, Registered Users 2 Posts: 11,297 ✭✭✭✭Nekarsulm


    WboNBU2.jpg


  • #6
    Nekarsulm
    Registered Users, Registered Users 2 Posts: 11,297 ✭✭✭✭Nekarsulm


    lsPwc45.jpg


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  • #7
    westland81
    Registered Users, Registered Users 2 Posts: 14 ✭westland81


    Thank you for the diagrams ! 
    Goin to try take into it this weekend and see what is going on in there. Bales are in so will get a chance to get at her now.
    Replacement unit needed then ... is this the unit you mean ... http://www.malpasonline.co.uk/itm/Clutch-Assemblies/Clutch-Assembly-for-fiat-82-94-agricultural-tractor-94-series/62814 ???
    Cheers


  • #8
    Nekarsulm
    Registered Users, Registered Users 2 Posts: 11,297 ✭✭✭✭Nekarsulm


    Those diagrams are for a 90-90 to 110-90, but essentially the same.

    Sparex show the kit for your tractor as part number S62814,

    The last time I changed mine, a 90-90, I went to the local New Holland dealer. The clutch unit wouldn't fit and I had to return it. I had came in a sealed wooden crate with the correct numbers and bar code etc on the labels, but was the wrong unit, actually for an 880.

    If you buy on-line from the UK and this happens, it will be a real ball ache returning and waiting etc

    Split it first and see if anything unusual is going on with the release bearings.


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