[tsubaki]

The Phillips holds the strainer in. No need to remove it.
There's always water leaking between the foot and midsection, it's not sealed. Just file off any burrs you created.
Also forgot to mention (if need be) with the tension of the wedges in place, you can whack the crank with a brass hammer. Careful to not damage the nut and flywheel. This jarring and already downward force might free it.