I have two 7-foot garage doors controlled by Liftmaster Model 2280-267
1/2HP belt-drive openers, about ten years old. They both seem to working okay, but the one I most use (main car), looks strange to me. I notice when the door is opening, the belt seems to 'flop' way too much in my opinion. The other door doesn't do that. The last thing I need is for the belt to snap.I am thinking that maybe the belt mechanism is wearing out, and in fact is about to break. Maybe the belt has stretched out excessively? My manual only shows a 'complete trolley assembly' - part # 41B3869-1, but I see in a Google search that I can buy just the belt.
What does my audience think? Should I replace the belt mechanism? Should I go for the entire assembly (assuming it includes the belt)? Or should I just buy the belt?
Thanks
Big Fred