I have a slight leak here as well. The manual is vauge on this repair. I have the parts too, but I haven't removed the axle to try it yet.

With the drum off, it looks like the 4 bolts for the axle flange will remove the axle and bearing.

Pressing a bearing on without a press may be possible with a piece of pipe and a mallet, but removing the old one if its pressed on will mean cutting it off with angle grinder if you don't have a bearing seperator and press.

John C.