Recent content by Denn

Thanks. I didn't realize the main ram seals could be defective and not leak externally. I'll check that next, then the working valve after. The jack will pump up without any load on it, but can easily be pushed back down with my foot. It won't lift at all if I put my foot on it.

Hi. I've used this thread to help me investigate why my 80's vintage Sears 2 ton jack is leaking down. It's not leaking oil, so the main ram seals are prob ok?? Checked the overload per descriptions here, it had some oil above setscrew which was 1-1/4 turns from bottomed out. The ball and seat...