A professional who sets up, adjusts, and repairs automatic glass forming machines, such as press-and-blow, blow-and-blow, and spinning machines, used to form bottles, containers, and other glassware, utilizing knowledge of glass forming machinery. Respnsibilities include:

• Reads work order to determine which molds, mold components, and machine parts are needed.
• Removes molds, mold components, and feeder tubes from machines, using handtools.
• Mounts blanking mold and final mold to hanger arms on machine, and installs gob (lump of molten glass) feeder tube leading from forehearth to molds, using handtools.
• Installs and aligns neck rings and press plunger to blanking mold to form neck and mouth of glassware, using handtools.
• Couples air lines to molds and coolant lines to mold jacket to regulate solidification of glass.
• Adjusts size of orifice which releases gob from forehearth, and shears cutting gob to control size of gob fed to mold, using handtools.
• Adjusts trip buttons on timer drum to set gob feeding, blank molding, final molding, and discharge sequence.
• Couples gas line to preheating burner under mold to maintain plasticity of glass during molding.
• Turns controls that regulate air pressures, coolant flows, gas line pressure, and glass temperatures in forehearth to form acceptable products, using knowledge of machine operation and product specifications.
• Performs test run and inspects glassware to verify setup.
• Repairs damaged machines by replacing defective parts, such as cams, hanger arms, or forming components, using handtools.
• Changes lehr drive gears to control annealing time of glassware in lehr.
• May be assisted by forming-machine operator in setting up machines.
• May ascertain temperature of gob, using pyrometer.