A professional who cleans rocket-motor cases and lines them with heat-resistant coatings by performing any combination of following tasks. Respnsibilities include:

• Moves motor cases through various process stations of building, using hoist and conveyor system.
• Attaches and removes special handling devices (handling rings) on motor cases, using wrenches and other handtools or portable power tools.
• Immerses case in chemical bath for specified period to remove protective coatings or contaminants.
• Wipes solution from inside of case, using cloth.
• Removes chemical film from surface of case, using sandblasting equipment.
• Paints outside of motor case, using spray gun.
• Bakes motor case in drying oven.
• Lowers motor case onto bed of lining machine.
• Connects turntable to end of motor case, using wrenches.
• Starts machine which rotates case and sprays heat-resistant material on inside of case.
• Examines coating for voids or other defects.
• Conveys lined motor case to curing oven.
• Observes recording instrument charts on control panel of curing oven to verify specified temperatures and curing time.
• Lowers cured cases onto skids and covers ends with paper and gummed tape.