||Electric Motor, Power Tool, and Related Repairers
- Reassemble repaired electric motors to specified requirements and ratings, using hand tools and electrical meters.
- Adjust working parts, such as fan belts, contacts, and springs, using hand tools and gauges.
- Scrape and clean units or parts, using cleaning solvents and equipment such as buffing wheels.
- Verify and adjust alignments and dimensions of parts, using gauges and tracing lathes.
- Steam-clean polishing and buffing wheels to remove abrasives and bonding materials, and spray, brush, or recoat surfaces as necessary.
- Set machinery for proper performance, using computers.
- 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.
||Musical Instrument Repairers and Tuners
- Adjust string tensions to tune instruments, using hand tools and electronic tuning devices.
- Reassemble instruments following repair, using hand tools and power tools and glue, hair, yarn, resin, or clamps, and lubricate instruments as necessary.
- String instruments, and adjust trusses and bridges of instruments to obtain specified string tensions and heights.
- Adjust felt hammers on pianos to increase tonal mellowness or brilliance, using sanding paddles, lacquer, or needles.
- Wash metal instruments in lacquer-stripping and cyanide solutions to remove lacquer and tarnish.
- Place rim hoops back onto drum shells to allow new drumheads to dry and become taut.
- Clean, sand, and paint parts of percussion instruments to maintain their condition.
||Control and Valve Installers and Repairers, Except Mechanical Door
- Turn valves to allow measured amounts of air or gas to pass through meters at specified flow rates.
- Vary air pressure flowing into regulators and turn handles to assess functioning of valves and pistons.
- Clean internal compartments and moving parts, using rags and cleaning compounds.
- Dismantle meters, and replace or adjust defective parts such as cases, shafts, gears, disks, and recording mechanisms, using soldering irons and hand tools.
- Reassemble repaired equipment, and solder top, front, and back case panels in place, using soldering guns, power tools, and hand tools.
- Make adjustments to meter components, such as setscrews or timing mechanisms, so that they conform to specifications.
- Clean plant growth, scale, paint, soil, or rust from meter housings, using wire brushes, scrapers, buffers, sandblasters, or cleaning compounds.
||Aircraft Mechanics and Service Technicians
- Reassemble engines following repair or inspection and reinstall engines in aircraft.
- 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.
||Mobile Heavy Equipment Mechanics, Except Engines
- Dismantle and reassemble heavy equipment using hoists and hand tools.
- Adjust, maintain, and repair or replace subassemblies, such as transmissions and crawler heads, using hand tools, jacks, and cranes.
- Clean, lubricate, and perform other routine maintenance work on equipment and vehicles.
- Clean parts by spraying them with grease solvent or immersing them in tanks of solvent.
- Adjust and maintain industrial machinery, using control and regulating devices.