Hi Guys
I have an old hydraulic Jack Id like to use in a simple press.
It pumps up ok but when I stand on the top of the piston it slowly contracts back to the start position.
I didnt turn the little jacking ring through 90 degrees either.
Any suggestions how to fix it, if possible
Its marked A5 and I have not used it in 40 years
Attached Images




Read the full thread at metalworkforums.com...