An incident occurred at the residence of an older man wherein he was injured when he reportedly applied sandpaper to a rotating drive belt while attempting to repair an exercise treadmill. The incident treadmill was powered by a 2-hp DC motor, and was being "operated" by the man while he was attempting to repair the machine by applying sandpaper to the motor drive V-belt at the time of the accident. Indeed, he decided to remove the treadmill motor guard so he could better access the underside of the tread belt. He noticed that the motor drive belt had a "sheen." He then took a roll of sandpaper, started the 2-hp electric motor, and attempted to apply-in the area of an in-running nip point-the sandpaper to the drive belt to remove the "sheen" while the treadmill motor and tread belt was powered and running. His middle finger on his right hand was reportedly drawn with the sandpaper into the motor belt and rotating drive pulley. He sustained injury to his finger as a result of the accident. From your viewpoint, address the issue of whether the incident treadmill was reasonably safe. Also, list possible causes of the accident.
