I have one of those inexpensive 4 ton porta power units. It has done yeoman duty for me since the mid-'80s but now the cylinder is leaking fluid around the top really badly. I have zero experience rebuilding hydraulics. Here's a similar unit in case you don't know what I'm talking about:Can anyone give me some tips as to how to rebuild this sucker? For a $65 replacement price obviously I could just get another one but if it's just a common O-ring and a little smarts then I'd sure like to know the procedure.
Grant Erwin Kirkland, Washington