A professional who adjusts and repairs linotype machines and related equipment, according to maintenance schedule, diagnosis of machine malfunctioning, and manufacturer's service manuals. Respnsibilities include:

• Inspects machines and operates keyboard to detect potential malfunctions, listening to machine operation for evidence of excessive wear and need for adjustment.
• Confers with operators of faulty machines to determine nature of malfunction and dismantles suspected components, using handtools.
• Repairs, straightens, files, or machines worn or defective parts, using handtools and machines, such as drill press, lathe, and grinder.
• Verifies dimensions of new or repaired parts, using micrometer, feeler gauges, and fixed gauges.
• Replaces repaired parts or installs new parts to restore machine to operating condition.
• Cleans parts of machine, such as matrices, magazines, plunger, and spaceband, according to prescribed schedule, using brushes, cloth, and cleaning agents.
• Lubricates grease fittings and moving parts of machine, using grease gun and oilcan.
• Determines temperature of machine melting pot, using thermometer, to ascertain need for adjustment or repair.
• May maintain supply of type metal in melting pots.
• May operate slug-casting machine to form metal bars and strips for securing type during printing.
• In smaller establishments, may perform duties of linotype operator.