I have a Craftsman 5HP 2 stage blower (model 536.886440) that's about 11 years old (runs great). I'm planning on doing some preventative maintenance this spring (replace belts for the first time, change oil, spark plug, etc). Looking at the owner's manual it says that the auger gear box is lubricated and sealed at the factory. Should I just leave it alone or should I tear it apart and repack it with grease? I have a bunch on Honda Moly 60 paste that I use on my Goldwing's driveshaft splines. Any thoughts? Thanks. Oh- here's a diagram of the assembly.