You have a 2 ton Fleetwood jack, probably a PF200M model. They are the same as a 2 ton Sears. There are minor changes in the years made and some rebuild kits have parts for both jacks.
When you reinstalled the handle to the piston plunger it was put in 180 degrees off. The round part on the plunger needs to face to the back off the jack or else yo can get a full stroke.