Waring blender - new blade

I need help assembling my new blade, gaskets and washers for my glass waring blender jar. I put it together and it ran a bit but then tightened up and wouldn't work. It also started leaking, so I figured I'd put it together incorrectly. In what order should the pieces be put together? I have an old Waring Blendor from the depression, model 700 - I ordered a new cord which I installed, I also ordered a new blade assembly with gasket seals and all. I cannot figure out how to remove the old assembly to insert the new assembly. Are special tools needed? When you describe a "wagon wheel", is that a type of large flat nut on the bottom of cloverleaf jar? Lowie