[suicideneil]

Piece of piss.

Just tap the shaft (front end) on a hard surface, or with a hammer, and the rear endbell will pop off, allowing you to withdraw the rotor. Then you can blow out any dirt and dust from inside, and pop out the bearings for inspection, cleaning and/or replacement.

You will need to glue the rear endbell back in place afterwards (red loctite), and possibly screw it on too like with a neu motor; or wait for Mike to get his heatsink clamps back in stock.