||Control and Valve Installers and Repairers, Except Mechanical Door
- Connect regulators to test stands, and turn screw adjustments until gauges indicate that inlet and outlet pressures meet specifications.
- Trace and tag meters or house lines.
- Reassemble repaired equipment, and solder top, front, and back case panels in place, using soldering guns, power tools, and hand tools.
- Splice and connect cables from meters or current transformers to pull boxes or switchboards, using hand tools.
||Electrical Power-Line Installers and Repairers
- Install, maintain, and repair electrical distribution and transmission systems, including conduits, cables, wires, and related equipment, such as transformers, circuit breakers, and switches.
- Install watt-hour meters and connect service drops between power lines and consumers' facilities.
- Splice or solder cables together or to overhead transmission lines, customer service lines, or street light lines, using hand tools, epoxies, or specialized equipment.
- Clean, tin, and splice corresponding conductors by twisting ends together or by joining ends with metal clamps and soldering connections.
||Electrical and Electronics Installers and Repairers, Transportation Equipment
- Splice wires with knives or cutting pliers, and solder connections to fixtures, outlets, and equipment.
- Locate and remove or repair circuit defects such as blown fuses or malfunctioning transistors.
- Adjust, repair, or replace defective wiring and relays in ignition, lighting, air-conditioning, and safety control systems, using electrician's tools.
- Measure, cut, and install frameworks and conduit to support and connect wiring, control panels, and junction boxes, using hand tools.
||Musical Instrument Repairers and Tuners
- Solder posts and parts to hold them in their proper places.
- Test tubes and pickups in electronic amplifier units, and solder parts and connections as necessary.
- Solder or weld frames of mallet instruments and metal drum parts.
||Electrical and Electronics Repairers, Powerhouse, Substation, and Relay
- Open and close switches to isolate defective relays, performing adjustments or repairs.
- Disconnect voltage regulators, bolts, and screws, and connect replacement regulators to high-voltage lines.