If you unplug it, pull the three bolts, then pop the tube off at the back, there is a hole in the motor for cooling where you can drop some oil on the end of the shaft. Then you can pull the blade and drop some oil on that end. Hold the motor up in the hole, put the rubber breather tube back on, then place the plastic shroud over it. Piece-o-cake.
For the rear screw, use a 1/4 screwdriver type socket driver, a 3 inch extension, then a universal adapter, then a 8mm deep socket. You have to do it by feel, but it ain't really that hard.