Re: Blower motor Squealing
Was pleasantly suprised to find that the motor is able to be taken apart & repaired. If I can figure out how to post photos, I'll show how it's done.
Photo 1, take the spring clamp off the fan. set the motor on the floor & hold the flanges with your feet while pulling with both hands (one on each side of squirrel cage) & the fan will come of the shaft.
Photo 1a, (forgot to take a pic, so bear with me), use 2 small screw drivers & slip one down along the side of the electrical terminal blade while using the other screw driver to push the terminal slightly back out of the connector area (don't push it all the way, as there's not enough room for the wires).
The motor is a snug fit into the plastic housing. use a large screw driver in the vent slots to help start prying the motor out. Once it has moved an inch or so (25mm), you can wrestle it the rest of the way out by hand.
Photo 2, Clamp the motor in a vice & use a chisel to "un-stake" the 4 tabs of the brush plate from the motor body (8 places). Then turn the motor side ways in the vice & use the chisel to gently "pop" the plate loose out of the body.