If my memory serves me correctly,you have to remove the front panel,the drum belt,and the drum lifts out and off the centre shaft,which is fixed to the back panel by the three studs you have mentioned.Lay the machine on its back,from underneath remove the screws securing the front panel to the chassis.Lift up and pull the panel downward out of the locators under the facia .The drum just lifts out,cannot remember if I had to remove the fan ducting or not.Sorry its been a few years since I've had my hands on that model.What I do remember is the price of the bearing kit £50.00 then.
paul, January 2012