in, remove the bolt from the wheel, push the axle through the wheel to free it, and set it aside.
second is to remove all bearings from each wheel. this gets you to where you have naked metal parts - bearings, axles, and bolts/screws. use your skate tool to push the speed kit or anything else in the way out of it. that should pop the bearing out from the other side. if no speed kit is used, then you can use the skate tool to seat inside the center of the bearing, lean it toward one side and pull back to extract the bearing.
third, with a clean towel wipe all 