I followed a video on how to take the oven door off, and this model doesn't have the locking latches that are seen in later models.
-Before starting, apply wide tape across the cracks and breaks in the glass, to keep it together. Be generous with this, but use minimal pressure when applying it.
-Open the oven door, remove the two brackets above the hinges, then close the door and pull it up and out by twisting it left and right until the hinges pop out.
-Put it hinge-side down on your workspace (I had the hinges hanging off the countertop) and remove the screws, then pull off the bottom and side pieces before removing the rest of the screws.
-Pull off the front panel and glass piece, and set it somewhere safe. Pull off the large metal piece inside as one whole unit--note the position and orientation before removing it. Do not remove the two screws from this piece.
-Pull off the middle glass piece, set it somewhere safe. Pull out the fabric insulation.
- Unscrew the brackets. If they're stuck as hell and refuse to move, apply a lubricant like WD-40, let it sit and penetrate, then thoroughly clean out any WD-40 that remains on the screw heads, and use a screwdriver with a well-fitting bit and (if available) a T-grip to apply pressure while twisting. A mechanical screwdriver may work too, but be careful since it could also cause the head to get stripped. A loud popping sound is normal if the rear glass has never been removed before.
- Remove the metal glass holder piece, and set it aside. Apply wide tape over the glass once more from this side, then lift it out and put it somewhere safe. Make sure the new glass has been cleaned of any packaging dust, then put it in place.
- Clean the other glass pieces, front and back, before proceeding.
- Reassemble in the same order as disassembly:
--Put the metal glass holder back in place.
--Screw the brackets back in. The notched, curved part goes down onto the metal glass holder, and the flatter tabs go up away from the frame.
--Insert the fabric insulation again.
--Insert the middle glass piece.
--Insert the larger metal piece.
--Place the front glass back on top
--Put the side brackets into place, then the bottom bracket, and screw them back together.
--With the hinges perpendicular to the oven door, put them back into place, and make sure they're all the way in and down.
--Screw the hinge brackets back into place.