SERVICE TECHNICIAN IN TO START UP PALLETIZER LINE WAS DOING PRE-OPERATION CHECKS. HE WAS INVESTIGATING THE POSSIBLE AIR LEAK ON BAG FLATTENER WHEN HE CROSSED OVER PALLET DISPENSER TO GET SOME TEFLON TAPE. HIS FOOT WAS CAUGHT BETWEEN A LOW IBEAM AND THE DRIVE CHAIN CAUSING HIM TO FALL FORWARD OVER THE I BEAM, TWISTING HIS KNEE.