Performs preventive maintenance on operations equipment as directed by MAXIMO, such as but not limited to greasing and lubrication, minor packing adjustments, opening hatches and installing safety rails, changing light bulbs, HVAC filters and performing minor maintenance during shift work as required. A working knowledge of treatment plant processes, systems and operation of related equipment, such as instrument panels, programmable logic control units, pumps, valves, motor control centers, level control devices, mixers, oxygen generation, chemical feed and odor control equipment.