disassemble a sears model 116.22812205?

30 seconds with Google image search produced a detailed exploded view of your vacuum:

http://www.searspartsdirect.com/model-number/11622812205/0582/0642000.html

It looks so simple to disassemble, I seriously doubt your abaility to fix it, given that you can't work out how to remove a half dozen screws based on an external examination.

As there is potentially lethal electricity inside, can I suggest you give the problem to someopne technically competent.

XXX
August 2016