||Aircraft Mechanics and Service Technicians
- Service and maintain aircraft and related apparatus by performing activities such as flushing crankcases, cleaning screens, and or moving parts.
- Clean, refuel, and change oil in line service aircraft.
- Clean, strip, prime, and sand structural surfaces and materials to prepare them for bonding.
- Clean engines, sediment bulk and screens, and carburetors, adjusting carburetor float levels.
||Electric Motor, Power Tool, and Related Repairers
- Scrape and clean units or parts, using cleaning solvents and equipment such as buffing wheels.
- Steam-clean polishing and buffing wheels to remove abrasives and bonding materials, and spray, brush, or recoat surfaces as necessary.
- Clean cells, cell assemblies, glassware, leads, electrical connections, and battery poles, using scrapers, steam, water, emery cloths, power grinders, or acid.
- Clean, rinse, and dry transformer cases, using boiling water, scrapers, solvents, hoses, and cloths.
||Maintenance Workers, Machinery
- Clean machines and machine parts, using cleaning solvents, cloths, air guns, hoses, vacuums, or other equipment.
- Remove hardened material from machines or machine parts, using abrasives, power and hand tools, jackhammers, sledgehammers, or other equipment.
- Check and maintain diving equipment, such as helmets, masks, air tanks, harnesses, or gauges.
- Install, inspect, clean, or repair piping or valves.
||Telecommunications Equipment Installers and Repairers, Except Line Installers
- Clean and maintain tools, test equipment, and motor vehicles.
- Clean switches and replace contact points, using vacuum hoses, solvents, and hand tools.