EE WAS UNDER A REEL TRUCK DOING SERVICING. HE MOVED FROM ONE AREA TO GET TO A GREASE FITTING AND WHEN HE PLACED HIS RIGHT ARM DOWN ON THE FLOOR, HE FELT PAIN. HE WORKED THE BALANCE OF THE SHIF T WITH THE ARM NOT HURTING BUT STATED WHEN HE GOT HOME THE ELBOW STARTED SWELLING HE REPORTED THE INJURY ON 11-26-01. EE DIABETIC STARTED MISSED WORK ON 11-27-01.