03262, 03293, 03285, 03279, 03215, 03259, 03227, 03223, 03264, 03243, 03245, 03217, 03226, 03241, 03222, 03256, 03253, 03246, 03249, 03269, 03231, 03235, 03276, 03220, 03224, 03303, 03278, 03307. Repairs and maintains building systems, machinery, and mechanical equipment such as engines, motors, pneumatic tools, conveyor systems, and production machines and equipment by performing the following duties.