Operates, inspects, conducts preventive maintenance routines, and repairs as needed (subject to limitations created by maintenance agreements or those that require specialized skills, equipment, or training) all equipment owned by or part of the convention center, including boilers, centrifugal compressors, air compressors, natural gas systems, water supply and drainage systems, chemical treatment systems for chilled, heating, and condenser water, electric motors and drive components for various devices, building structural components, and motor- or engine-powered equipment. Set up and remove electrical power equipment such as power boxes, 60-amp extensions, 30-amp extensions, 20-amp stringers, single- and 3-phase connections, 208-volt connections, 60-amp service connectors to Cam-Lok, 480-volt Posi-lok, and extension cords for clients and catering except that which is contracted to others by the client.