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  1. #1
    Silver Member
    Join Date
    Oct 2011
    Posts
    152
    Location
    Massachusetts
    Tractor
    Ford 1920 2WD geared

    Default Oliver 770 Roosa master Stanadyne pump removal question

    Hello, I am having trouble removing the gear from the pump drive shaft. I was able to remove the pump because the whole gear/shaft assemblly slid out the front, but I know during re-assemblly, in order to be sure the umbrella seals go in correctly, I think I need to insert the shaft into the pump first, then install the pump, but because the tractor gear does not fit through that hole on the back, I think it has to come off. There were two bolts going through holes in the gear, they appear to help index the gear to the shaft, then there is a large nut on the end of the shaft, but it will not budge. The only way to hold the shaft, is by the tang on the end. I'm worried I might snap the shaft at the skinny part. Is there a trick to removing this nut??
    Ford 1920 diesel
    (2) Earthmaster model C's
    Ariens GT17, Deere 185
    IH 350U Gas
    Pettibone Multihoe backhoe (RIP)
    Oliver 770 Industrial w/Ware loader backhoe diesel

  2. #2
    Silver Member
    Join Date
    Oct 2011
    Posts
    152
    Location
    Massachusetts
    Tractor
    Ford 1920 2WD geared

    Default Re: Oliver 770 Roosa master Stanadyne pump removal question

    A nice guy on Yesterday's tractors forum advised holding it with a rag, and useing an impact wrench.....It worked great.
    Ford 1920 diesel
    (2) Earthmaster model C's
    Ariens GT17, Deere 185
    IH 350U Gas
    Pettibone Multihoe backhoe (RIP)
    Oliver 770 Industrial w/Ware loader backhoe diesel

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