Repairing the hydraulic bumber jack

tinsled
tinsled Member, Confirm Email
in "How To" - Skills, mechanical and other wise

I was fortunate to get the original Hudson bumber jack (less the handle) with my 1954 Hornet.

Only the jack will not move, looks like the little piston which is probably supposed to pump the oil to the big lifting piston is stuck. I am able to move the main rod of the lifting piston up-down when the valve in the foot is screwed open, but the little piston (pointed by arrow in the photo) is frozen... Also the bleeding screw (?) in the foot is frozen. Which way to take the jack apart for service without breaking any parts?

image.png


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  • tinsled
    tinsled Member, Confirm Email

    EDIT; I copied the image from another discussion at HETclub, but now realized that the pump body in the picture I attached to my original question looks different from mine. The foot & pump body of my jack looks like the one below... the question is still the same; how do I take this apart for service & cleaning?

    image.png


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