I have an old 6000 pound Shin Fu floor jack that I bought from Western Auto jears ago. At some point someone used motor oil for Hydralic fluid and messed with the screws in it and now it will not jack up. There is no signs of keaking and all the O-rings looked good. I pulled the handle mechanism off and then drained all the fluid out and cleaned the needle valve.
There are a total of three fittings. One fiting is solid and uases a hex head to remove it. This one bleed out fluid when it was removed. The fitting beside the one just described unscrews to reveal a second screw that adjusts what appears to be a needle valve. The third fitting is on the cylinder itself and doesn't appear to be anything more than a drain.
Now that I have it back together I don't know what hole to use for the filler or how to adjust the presseure or how to bleed it. Can anyone help me with this?
Thanks
Wade
There are a total of three fittings. One fiting is solid and uases a hex head to remove it. This one bleed out fluid when it was removed. The fitting beside the one just described unscrews to reveal a second screw that adjusts what appears to be a needle valve. The third fitting is on the cylinder itself and doesn't appear to be anything more than a drain.
Now that I have it back together I don't know what hole to use for the filler or how to adjust the presseure or how to bleed it. Can anyone help me with this?
Thanks
Wade
Last edited:
