Full Job Description

Controls equipment that heats asphalt to specified temperature and viscosity for use in manufacture of roofing materials: Starts pumps that fill tanks with asphalt, and turns wheels and valves to regulate temperature and steam pressure. Actuates air compressor to force air bubbles through liquid asphalt, creating chemical reaction that raises asphalt melting point. Observes and adjusts dials and gauges to maintain specified temperature, pressure, and depth of asphalt in tanks. Starts discharge pumps, and turns valves to direct flow of heated asphalt into plant and storage tanks.

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