Identify minor external repairs to all equipment and accessories.

Identification should include following manufacturers' recommendation, school policy, and the instructor's guidelines for repairing

• shielded metal arc welding (SMAW)–checking ground lead and electrode holder
• gas metal arc welding (GMAW), short-circuit gas metal arc welding (GMAW-S), self-shielded flux-cored arc welding (FCAW-S), and gas-shielded flux-cored arc welding (FCAW-G)–changing contact tips, drive rollers, and gas diffusers
• gas tungsten arc welding (GTAW)–changing cups and collets and checking coolant
• oxy-fuel cutting (OFC) and OFC track burner–checking hoses for leaks, making sure gauges are in proper working order, and ensuring that tip is free of obstruction
• air carbon arc cutting (CAC-A)–checking for moisture in the air compressor lines, making sure gauges are in proper working order, and identifying frayed, nicked, or loose connectors
• plasma arc cutting (PAC)–inspecting electrical wiring for frayed, nicked, or loose connections; ensuring air compressor lines are clear of moisture; and checking condition of the plasma torch nozzle and tip.