Treadmills usually do have a weight rating, but it sounds like these just really need maintenance. Usually ones purchased for a fitness center are going to be rated the highest so the most people can use them. I'd talk with management of your building and let them know your concern about the machine. I'd bet no one has checked them out in a while:) I had a cheaper brand that was rated at 250 lbs and I used it when I was heavier, but as the machine got older the belt would sometimes just stop.
Jesus looked at them and said, "With man this is impossible, but with God all things are possible."
BLC6 - Go YELLOW! Rays of Hope Rock!
| current weight: 233.0