Heater Blower Motor removal

[MAK]

I want the remove the blower motor, for inspection and cleanup, there seems to be a nut that attaches it to the wall(?) that separates the from luggage how compartment, have spent over an hour trying to reach it - to no avail.  Any hints? 
It seems that it only attaches in 3 places, Yes/no?
I looked at the workbook, not much help.
Prior owner said he never used the heater, didn't knew if it worked. great!

[TurboFource]

There are two brackets and the blower assembly bolts to them with 3 rubber isolators … obviously I need new ones but the motor doesn’t work so a problem for the future ….