h3>While performing the duties of this job, the employee is frequently required to walk, sit, talk or hear, ascend and descend stairs, ramps, etc., use hands to finger, handle or feel objects, tools or controls, reach with hands and arms, climb or balance, stoop, kneel, crouch, or crawl. Maintains and modifies, as needed, all plant and production mechanical, electrical and electronic control equipment including related pneumatic, magnetic, hydraulic, optic, sonic, chemical components and controls.