Ordered and replaced bellow. It is important to supply the correct model number as my machine is a later model than the one used in the training video. The front panel is one piece, rather than two. Additionally, several of the fasteners were hex head screws, rather than torks. The Bellow is somewhat different having an opening for the light fixture. That said, the video was adequate to get the general idea of how to remove and replace the bellow.
I found it very difficult to replace the spring loaded outer retention ring without assistance. It is very helpful to have someone assist by holding the spring in place as you stretch it out and over the outer lip of the bellow.