||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.
- Trace and tag meters or house lines.
- Dismantle meters, and replace or adjust defective parts such as cases, shafts, gears, disks, and recording mechanisms, using soldering irons and hand tools.
- Make adjustments to meter components, such as setscrews or timing mechanisms, so that they conform to specifications.
||Radio, Cellular, and Tower Equipment Installers and Repairers
- Check antenna positioning to ensure specified azimuths or mechanical tilts and adjust as necessary.
- Install, adjust, and repair stationary and mobile radio transmitting and receiving equipment and two-way radio communication systems.
- Monitor radio range stations to detect transmission flaws and adjust controls to eliminate flaws.
- Repair circuits, wiring, and soldering, using soldering irons and hand tools to install parts and adjust connections.
||Musical Instrument Repairers and Tuners
- Adjust string tensions to tune instruments, using hand tools and electronic tuning devices.
- 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.
||Electric Motor, Power Tool, and Related Repairers
- Adjust working parts, such as fan belts, contacts, and springs, using hand tools and gauges.
- Verify and adjust alignments and dimensions of parts, using gauges and tracing lathes.
- Set machinery for proper performance, using computers.
- Monitor and adjust operations of geothermal power plant equipment or systems.
- Adjust power production systems to meet load and distribution demands.
||Computer, Automated Teller, and Office Machine Repairers
- Repair, adjust, or replace electrical or mechanical components or parts, using hand tools, power tools, or soldering or welding equipment.
- Clean, oil, or adjust mechanical parts to maintain machines' operating efficiency and to prevent breakdowns.
||Electrical and Electronics Installers and Repairers, Transportation Equipment
- Adjust, repair, or replace defective wiring and relays in ignition, lighting, air-conditioning, and safety control systems, using electrician's tools.
- Locate and remove or repair circuit defects such as blown fuses or malfunctioning transistors.
||Security and Fire Alarm Systems Installers
- Test and repair circuits and sensors, following wiring and system specifications.
- Adjust sensitivity of units, based on room structures and manufacturers' recommendations, using programming keypads.
||Mobile Heavy Equipment Mechanics, Except Engines
- Adjust, maintain, and repair or replace subassemblies, such as transmissions and crawler heads, using hand tools, jacks, and cranes.
- Adjust and maintain industrial machinery, using control and regulating devices.
||Coin, Vending, and Amusement Machine Servicers and Repairers
- Adjust and repair coin, vending, or amusement machines and meters and replace defective mechanical and electrical parts, using hand tools, soldering irons, and diagrams.
- Adjust machine pressure gauges and thermostats.
||Maintenance and Repair Workers, General
- Assemble, install, or repair wiring, electrical or electronic components, pipe systems, plumbing, machinery, or equipment.
- Adjust functional parts of devices or control instruments, using hand tools, levels, plumb bobs, or straightedges.
||Heating, Air Conditioning, and Refrigeration Mechanics and Installers
- Install, connect, or adjust thermostats, humidistats, or timers.
- Adjust system controls to settings recommended by manufacturer to balance system.
||Home Appliance Repairers
- Reassemble units after repairs are made, making adjustments and cleaning and lubricating parts as needed.
- Set appliance thermostats, and check to ensure that they are functioning properly.
||Automotive Service Technicians and Mechanics
- Test and adjust repaired systems to meet manufacturers' performance specifications.
||Audiovisual Equipment Installers and Repairers
- Tune or adjust equipment and instruments to obtain optimum visual or auditory reception, according to specifications, manuals, and drawings.
||Bus and Truck Mechanics and Diesel Engine Specialists
- Examine and adjust protective guards, loose bolts, and specified safety devices.
||Signal and Track Switch Repairers
- Inspect electrical units of railroad grade crossing gates and repair loose bolts and defective electrical connections and parts.
||Electrical and Electronics Repairers, Powerhouse, Substation, and Relay
- Open and close switches to isolate defective relays, performing adjustments or repairs.
||Telecommunications Equipment Installers and Repairers, Except Line Installers
- Adjust or modify equipment to enhance equipment performance or to respond to customer requests.
||Farm Equipment Mechanics and Service Technicians
- Reassemble machines and equipment following repair, testing operation and making adjustments, as necessary.