Pilgrim's - - Responsibilities: Installs and repairs industrial and commercial refrigerating systems (ammonia and Freon).; Lays out reference points for installation of structural and functional components.; Drills holes and installs mounting brackets and hangers into floor and walls of building.; Lifts or hoists and aligns components into position.; Screws, bolts, rivets, welds, and brazes parts to assemble components such as motors, controls, gauges, wiring harnesses, valves, pumps, compressors, condensers, cores, and pipes.