A professional who repairs and maintains forge shop machinery, such as hammers, forging presses, rolls, upsetters, and furnaces, following blueprints, manufacturer's catalogs, and data chart specifications, using handtools, power tools, and precision measuring instruments, such as micrometer, calipers, rule, square, and gauges. Respnsibilities include:

• Observes machine in operation to determine malfunction.
• Disassembles machine, using handtools, and examines parts for defects.
• Obtains replacement parts from stock or prepares sketches of parts for fabrication in forge shop or machine shop.
• Welds broken or cracked metal parts.
• Replaces drophammer boards and adjusts steam, pneumatic, hydraulic, fuel, and blower controls of presses, hammers, and furnaces, using handtools.
• Fits parts together to reassemble machine, using measuring instruments, files, handtools, and power tools, such as portable drills and grinders.
• Examines and repairs auxiliary equipment, such as pumps, valves, hoses, and compressors.
• Starts machine and observes operation to verify performance.
• May repair electrical components, such as switches and circuits.
• May set up machine for other workers.
• May be designated according to type of machine repaired as load-chain welding-machine repairer.
• May rebuild forging machinery and be designated machine rebuilder.