Measure and visually inspect products for surface and dimension defects to ensure conformance to specifications, using precision measuring instruments.
Observe continuous operation of automatic machines to ensure that products meet specifications and to detect jams or malfunctions, making adjustments as necessary.
Set up, operate, or tend metal or plastic molding, casting, or coremaking machines to mold or cast metal or thermoplastic parts or products.
Turn valves and dials of machines to regulate pressure, temperature, and speed and feed rates, and to set cycle times.
Read specifications, blueprints, and work orders to determine setups, temperatures, and time settings required to mold, form, or cast plastic materials, as well as to plan production sequences.
Observe meters and gauges to verify and record temperatures, pressures, and press-cycle times.
Connect water hoses to cooling systems of dies, using hand tools.
Remove parts, such as dies, from machines after production runs are finished.
Operate hoists to position dies or patterns on foundry floors.
Cool products after processing to prevent distortion.