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  1. #11
    Gold Member
    Join Date
    May 2012
    Gidgiegannup Springs, Western Australia
    Massey Ferguson 148 .Chamberlain Super 70. Caterpillar D4. Chamberlain 354 FEL.Toro 268 rideon kubota L2002fel

    Default Re: Hydraulic pump knocking

    G'day DJ54.
    I did forget that one and it is well worth a mention.
    The Dowel Pins are there to Locate the pump and to stop it trying to rotate The most common reason for the pins breaking is when there is an implement ,Brushhog ! etc that is pto driven and you have a situation where the PTO shaft when fully Compressed that is at it,s shortest it may be still to long and when the Linkage is raised it will Mechanically compress and PUSH the pto shaft into the transmission,this is caused by the fact that as the lift arms travel up they in effect reduce the distance between the end of the arms and the P.T.O.Shaft and consequently pushing the shaft Forward,Try this when you have a pto driven implement fitted to the tractor Be carefull dont put yourself or others in a position that will cause injury,just watch the pto Tube and you will see what i mean.

    The one and most important thing to check when attaching a P.T.O. Driven implement is to check BOTH THE FULLY EXTENDED LENGTH AND THE FULLY COMPRESSED LENGTH both Equally important,Ideally the shaft should have a minimum of TWO to THREE Inches of engagement between the two halves at alll times a little bit more is o.k but remember make sure the two parts dont butt hard up or $$$$$.

    The easiest way to double check and this is what i do is to fit the implement and raise it up to the transport position Turn the engine of and on a flat surface fit the P.T.O.Shaft this means the shaft has something like two inches more to travel before it Butts up Hard.
    Again Thank you DJ54 For sharing this point with the members.
    I will take this opportunity to wish all T.B.N. Members and their families a Very Merry Christmas and all the Best for the new year and as we say in Scotland" [B]Lang Miy Yer Lum Reek oan Ither Folks Coal .

    Regards to all.

  2. #12
    Elite Member
    Join Date
    Jan 2009
    Carroll, Ohio
    IH Farmall 656 gas/ IH 240 Utility/ 2, Super C Farmalls/ 2, Farmall A's/ Farmall BN/McCormick-Deering OS-6/McCormick-Deering O-4/ '36 Farmall F-12/ 480 Case hoe. '65 Ford 2000 3 cyl., 4 spd. w/3 spd Aux. Trans

    Default Re: Hydraulic pump knocking

    To tell the truth, I had to think on it a bit.. This happened maybe 6-8 years ago to him, and he told me to make sure to check the ones on my 180 when I had it down for pump repair, several years back. The knocking rang a bell, but had to think on it a bit, as to what he said caused his...

    Just worked on too many of my others since then, and had to do some thinking. Thanks to the search feature on here, I searched all of my old posts, until I found it. Another poster had one was knocking 3 years ago, and I posted that reply, as it was still fresh in my mind...

    Just getting older I guess, and CRS setting in...

  3. #13
    Bronze Member ArcherXC's Avatar
    Join Date
    Oct 2012
    Swansea, SC
    1965 Massey Ferguson 135

    Default Re: Hydraulic pump knocking

    Thank you Hutch! I will look into this in a couple of days.

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