Among many tasks, the Area Mech HVAC Refrigeration Tech must be able to repair or replace valves, bearings, belts and sheave replacement, blower and shaft replacement, insulation and damper repairs, motor repair or replacement, pump rebuilding and maintenance of boilers and air compressors. Perform maintenance on mechanical systems that include belts, bearings, motors, pumps, walk-in-coolers, freezers, ice maker machines and other refrigeration equipment that includes coils, pans, insulation, blower shafts.