The roller glide in your microwave rests under the microwave plate, and allows it to rotate when the microwave is running. It is a round plastic ring with 3 wheels spaced out around the perimeter. If ... No Longer Available
After looking up on the computer a schematic of the unit, all that was needed was removing four screws to remove the top and side cover which was one piece. Next was removal of electrical connection to burned out lamp, then removing burned out lamp and installing the new lamp and reconnecting electrical connection. Job was complete after reinstalling the cover.
Microwave now working with new lamp lighting when in use.
First, I read the PartsSelect DIY report by Linda, Warsaw, IN. With confidence, I purchased the magnetron. Upon receipt, I took the built-in microwave out of the cabinet, set the unit on the kitchen floor, and was stopped cold by the Safety Torx nuts on the reverse of the unit. Borrowing the right wrench allowed the 20 minute start-to-finish part changeout and reinstallation of the unit in the cabinet to proceed. The old magnetron was the defective part. Discovery of the 10-year Parts-Only warranty on the less than 10-year old unit was insufficinet to guide me to take the unit in for their Labor bill to repair. New part in hand, it just was that easy - and assumed to be no less expensive.
Thanks to great instructions from a previous person, this was super easy. It took 5 minutes to remove and replace the new motor. The big part of this job was cleaning out the cabinet where the microwave sits, since I had to take it out.
There is a 'door cover' pressed into the bottom of the microwave, that just has 6 small tabs that you need to cut. Then remove 1 screw, and the wire clip and the motor is changed. The door just reverses and re-installs with 1 screw. When the microwave was designed, this repair was in the engineers mind. So simple I couldn't beleive it.