@ Lesinutah
"I wouldn't waste money having someone going to hose you for a cool hundred when they will wait until you leave spray it down wipe it off and there done."
I think that's just a matter of trusting your vacuum shop and getting to know them. I brought an Electrolux to my vac shop before and told them I thought something was up with the motor and it might need some oil. I took the cover off and made a little scratch mark on the metal of the screws around the motor and where they sit at before I took it in. I got it back a week later and it was all fixed. When I got it home and took it apart, sure enough, the marks I made on the screws did not line up with the mark on the housing, so that told me they did take the entire motor apart, and yes the vacuum did run a lot quieter and didn't sound like a jet engine.