I serviced this Bowflex TreadClimber TC5000 in Wells, Maine this morning. It has seen some pretty heavy and perhaps rough use. It needs a new set of tread decks as well as a new drive belt which have been ordered.
Update: I installed the new tread decks and the new drive belt. In the two added images at the bottom, you can see the new properly installed drive belt, as well as the old worn out and broken tread decks that I removed.