Have one just like it and it works super! If you really wanna do it the easier way, buy an air over hydraulic 20 ton jack.....makes it an absolute breeze to use.
I seen those I think there only about $100. & would sure be easier than pumping that handle. That would give me a nice handy 20 ton bottle jack for other stuff. I'm building a welding cart right now. I think my next project will be a set of those angled press bars that are used on the press for bending right angles.