</font><font color="blue" class="small">( can one convert a manual hydraulic piston (like a bottle jack)to one operated using the tractor hydraulic system? Would you even want to do that? just a thought )</font>
The bottle jack contains a reservoir, pump, single acting cylinder, a pump power device (handle), and a dump valve. I think it's a complete system all by itself. If I needed something similar to power with the tractor, I believe a single-acting cylinder would be my choice. It's so much easier to rig than trying to rig a bottle jack for the same purpose.
My 2 cents worth... /forums/images/graemlins/smile.gif