Opps forgot to mention that you would only need the ring tool on a G series bearing plate, you don't need it for the DS50 the bearing is just pressed into place.
The rear bearing puller is Kirby #T125
The Spring tool is Kirby #T123
Also to get the fan off of the armature, when you look inside the motor thru the vent near the bottom you will see a hole in the armature. You can use the fan locking pin Kirby #T104 or I just use 1/8" piano wire (found at your local hardware store) Insert the wire or tool into the hole in the armature to hold from turning then turn the fan and belt pulley clockwise to take it off so you can get to the bearing plate.
If you have to replace the bearings on the Heritage, once you get the fan off then the whole motor comes out the back because there is no removable bearing plate. The bearing is in a well in the motor housing.
picture of bearing with step
[ATTACH=full]65149[/ATTACH]
