- Test components or circuits of faulty equipment to locate defects, using oscilloscopes, signal generators, ammeters, voltmeters, or special diagnostic software programs.
Occupations with related tasks Save Table: XLSX CSV
| Closely Related Tasks | All Related Tasks | Job Zone | Code | Occupation |
| 2 | 4 | 3 | 49-9097.00 | Signal and Track Switch Repairers |
| 2 | 4 | 3 | 49-2092.00 | Electric Motor, Power Tool, and Related Repairers |
| 1 | 4 | 3 | 49-9081.00 | Wind Turbine Service Technicians 
|
| 1 | 4 | 3 | 49-2095.00 | Electrical and Electronics Repairers, Powerhouse, Substation, and Relay |
| 1 | 4 | 3 | 49-2021.00 | Radio, Cellular, and Tower Equipment Installers and Repairers |
| 1 | 4 | 3 | 49-9063.00 | Musical Instrument Repairers and Tuners |
| 1 | 3 | 3 | 49-2022.00 | Telecommunications Equipment Installers and Repairers, Except Line Installers
|
| 1 | 2 | 3 | 49-3041.00 | Farm Equipment Mechanics and Service Technicians
|
| 1 | 2 | 3 | 49-2093.00 | Electrical and Electronics Installers and Repairers, Transportation Equipment
|
| 1 | 2 | 3 | 49-9064.00 | Watch and Clock Repairers |
| 1 | 2 | 2 | 49-9051.00 | Electrical Power-Line Installers and Repairers |
| 1 | 2 | 3 | 49-3023.00 | Automotive Service Technicians and Mechanics |
| 1 | 2 | 3 | 49-9021.00 | Heating, Air Conditioning, and Refrigeration Mechanics and Installers
|
| 1 | 2 | 2 | 49-9031.00 | Home Appliance Repairers |
| 1 | 1 | 3 | 49-2097.00 | Audiovisual Equipment Installers and Repairers |
| 1 | 1 | 3 | 49-2098.00 | Security and Fire Alarm Systems Installers |
- Inspect and test operation, mechanical parts, and circuitry of gate crossings, signals, and signal equipment such as interlocks and hotbox detectors.
- Tighten loose bolts, using wrenches, and test circuits and connections by opening and closing gates.
- Test and repair track circuits.
- Test air lines and air cylinders on pneumatically operated gates.
- Inspect electrical units of railroad grade crossing gates and repair loose bolts and defective electrical connections and parts.
- Drive motor vehicles to job sites.
- Install, inspect, maintain, and repair various railroad service equipment on the road or in the shop, including railroad signal systems.
- Inspect switch-controlling mechanisms on trolley wires and in track beds, using hand tools and test equipment.
- Replace defective wiring, broken lenses, or burned-out light bulbs.
- Inspect, maintain, and replace batteries as needed.
- Record and report information about mileage or track inspected, repairs performed, and equipment requiring replacement.
- Lubricate moving parts on gate-crossing mechanisms and swinging signals.
- Clean lenses of lamps with cloths and solvents.
- Maintain high tension lines, de-energizing lines for power companies when repairs are requested.
- Inspect and test operation, mechanical parts, and circuitry of gate crossings, signals, and signal equipment such as interlocks and hotbox detectors.
- Tighten loose bolts, using wrenches, and test circuits and connections by opening and closing gates.
- Test and repair track circuits.
- Test air lines and air cylinders on pneumatically operated gates.
- Test conditions, fluid levels, and specific gravities of electrolyte cells, using voltmeters, hydrometers, and thermometers.
- Test battery charges, and replace or recharge batteries as necessary.
- Measure velocity, horsepower, revolutions per minute (rpm), amperage, circuitry, and voltage of units or parts to diagnose problems, using ammeters, voltmeters, wattmeters, and other testing devices.
- Test equipment for overheating, using speed gauges and thermometers.
- Inspect and test equipment to locate damage or worn parts and diagnose malfunctions, or read work orders or schematic drawings to determine required repairs.
- Reassemble repaired electric motors to specified requirements and ratings, using hand tools and electrical meters.
- Repair and rebuild defective mechanical parts in electric motors, generators, and related equipment, using hand tools and power tools.
- Lift units or parts such as motors or generators, using cranes or chain hoists, or signal crane operators to lift heavy parts or subassemblies.
- Record repairs required, parts used, and labor time.
- Disassemble defective equipment so that repairs can be made, using hand tools.
- Adjust working parts, such as fan belts, contacts, and springs, using hand tools and gauges.
- Lubricate moving parts.
- Read service guides to find information needed to perform repairs.
- Inspect electrical connections, wiring, relays, charging resistance boxes, and storage batteries, following wiring diagrams.
- Scrape and clean units or parts, using cleaning solvents and equipment such as buffing wheels.
- Weld, braze, or solder electrical connections.
- 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.
- Reface, ream, and polish commutators and machine parts to specified tolerances, using machine tools.
- Maintain stocks of parts.
- Cut and form insulation, and insert insulation into armature, rotor, or stator slots.
- Assemble electrical parts such as alternators, generators, starting devices, and switches, following schematic drawings and using hand, machine, and power tools.
- Solder, wrap, and coat wires to ensure proper insulation.
- Rewire electrical systems, and repair or replace electrical accessories.
- Clean cells, cell assemblies, glassware, leads, electrical connections, and battery poles, using scrapers, steam, water, emery cloths, power grinders, or acid.
- Rewind coils on cores in slots, or make replacement coils, using coil-winding machines.
- Add water or acid to battery cell solutions to obtain specified concentrations.
- Pour compounds into transformer-case terminal openings to seal out moisture.
- Remove and replace defective parts such as coil leads, carbon brushes, and wires, using soldering equipment.
- Hammer out dents and twists in tools and equipment.
- Drain and filter transformer oil and refill transformers with oil until coils are submerged.
- Seal joints with putty, mortar, and asbestos, using putty extruders and knives.
- Repair and operate battery-charging equipment.
- Sharpen tools such as saws, picks, shovels, screwdrivers, and scoops, either manually or by using bench grinders and emery wheels.
- Inspect batteries for structural defects such as dented cans, damaged carbon rods and terminals, and defective seals.
- Bolt porcelain insulators to wood parts to assemble hot stools.
- Position and level battery cells, anodes, or cathodes, using hoists or leveling jacks, or signal other workers to perform positioning and leveling.
- Clean, rinse, and dry transformer cases, using boiling water, scrapers, solvents, hoses, and cloths.
- Test conditions, fluid levels, and specific gravities of electrolyte cells, using voltmeters, hydrometers, and thermometers.
- Test battery charges, and replace or recharge batteries as necessary.
- Measure velocity, horsepower, revolutions per minute (rpm), amperage, circuitry, and voltage of units or parts to diagnose problems, using ammeters, voltmeters, wattmeters, and other testing devices.
- Test equipment for overheating, using speed gauges and thermometers.
- Test electrical components of wind systems with devices, such as voltage testers, multimeters, oscilloscopes, infrared testers, or fiber optic equipment.
- Start or restart wind turbine generator systems to ensure proper operations.
- Test structures, controls, or mechanical, hydraulic, or electrical systems, according to test plans or in coordination with engineers.
- Collect turbine data for testing or research and analysis.
- Troubleshoot or repair mechanical, hydraulic, or electrical malfunctions related to variable pitch systems, variable speed control systems, converter systems, or related components.
- Perform routine maintenance on wind turbine equipment, underground transmission systems, wind fields substations, or fiber optic sensing and control systems.
- Diagnose problems involving wind turbine generators or control systems.
- Climb wind turbine towers to inspect, maintain, or repair equipment.
- Maintain tool and spare parts inventories required for repair, installation, or replacement services.
- Train end-users, distributors, installers, or other technicians in wind commissioning, testing, or other technical procedures.
- Inspect or repair fiberglass turbine blades.
- Assist in assembly of individual wind generators or construction of wind farms.
- Operate manufacturing equipment to fabricate wind turbines.
- Test electrical components of wind systems with devices, such as voltage testers, multimeters, oscilloscopes, infrared testers, or fiber optic equipment.
- Start or restart wind turbine generator systems to ensure proper operations.
- Test structures, controls, or mechanical, hydraulic, or electrical systems, according to test plans or in coordination with engineers.
- Collect turbine data for testing or research and analysis.
- Test insulators and bushings of equipment by inducing voltage across insulation, testing current, and calculating insulation loss.
- Inspect and test equipment and circuits to identify malfunctions or defects, using wiring diagrams and testing devices such as ohmmeters, voltmeters, or ammeters.
- Run signal quality and connectivity tests for individual cables, and record results.
- Construct, test, maintain, and repair substation relay and control systems.
- Prepare and maintain records detailing tests, repairs, and maintenance.
- Consult manuals, schematics, wiring diagrams, and engineering personnel to troubleshoot and solve equipment problems and to determine optimum equipment functioning.
- Analyze test data to diagnose malfunctions, to determine performance characteristics of systems, or to evaluate effects of system modifications.
- Open and close switches to isolate defective relays, performing adjustments or repairs.
- Notify facility personnel of equipment shutdowns.
- Repair, replace, and clean equipment and components such as circuit breakers, brushes, and commutators.
- Maintain inventories of spare parts for all equipment, requisitioning parts as necessary.
- Schedule and supervise the construction and testing of special devices and the implementation of unique monitoring or control systems.
- Schedule and supervise splicing or termination of cables in color-code order.
- Test oil in circuit breakers and transformers for dielectric strength, refilling oil periodically.
- Disconnect voltage regulators, bolts, and screws, and connect replacement regulators to high-voltage lines.
- Set forms and pour concrete footings for installation of heavy equipment.
- Test insulators and bushings of equipment by inducing voltage across insulation, testing current, and calculating insulation loss.
- Inspect and test equipment and circuits to identify malfunctions or defects, using wiring diagrams and testing devices such as ohmmeters, voltmeters, or ammeters.
- Run signal quality and connectivity tests for individual cables, and record results.
- Construct, test, maintain, and repair substation relay and control systems.
- Test batteries, using hydrometers and ammeters, and charge batteries as necessary.
- Test operation of tower transmission components, using sweep testing tools or software.
- Install, connect, or test underground or aboveground grounding systems.
- Test equipment functions such as signal strength and quality, transmission capacity, interference, and signal delay, using equipment such as oscilloscopes, circuit analyzers, frequency meters, and wattmeters.
- Inspect completed work to ensure all hardware is tight, antennas are level, hangers are properly fastened, proper support is in place, or adequate weather proofing has been installed.
- Run appropriate power, ground, or coaxial cables.
- Install all necessary transmission equipment components, including antennas or antenna mounts, surge arrestors, transmission lines, connectors, or tower-mounted amplifiers (TMAs).
- Read work orders, blueprints, plans, datasheets or site drawings to determine work to be done.
- Replace existing antennas with new antennas as directed.
- Bolt equipment into place, using hand or power tools.
- Complete reports related to project status, progress, or other work details, using computer software.
- Check antenna positioning to ensure specified azimuths or mechanical tilts and adjust as necessary.
- Transport equipment to work sites, using utility trucks and equipment trailers.
- Take site survey photos or photos of work performed, using digital cameras.
- Climb towers to access components, using safety equipment, such as full-body harnesses.
- Climb communication towers to install, replace, or repair antennas or auxiliary equipment used to transmit and receive radio waves.
- Lift equipment into position, using cranes and rigging tools or equipment, such as gin poles.
- Perform maintenance or repair work on existing tower equipment, using hand or power tools.
- Locate tower sites where work is to be performed, using mapping software.
- Install or repair tower lighting components, including strobes, beacons, or lighting controllers.
- Calibrate and align components, using scales, gauges, and other measuring instruments.
- Examine malfunctioning radio equipment to locate defects such as loose connections, broken wires, or burned-out components, using schematic diagrams and test equipment.
- Insert plugs into receptacles and bolt or screw leads to terminals to connect equipment to power sources, using hand tools.
- 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.
- Mount equipment on transmission towers and in vehicles such as ships or ambulances.
- Remove and replace defective components and parts such as conductors, resistors, semiconductors, and integrated circuits, using soldering irons, wire cutters, and hand tools.
- Repair circuits, wiring, and soldering, using soldering irons and hand tools to install parts and adjust connections.
- Test emergency transmitters to ensure their readiness for immediate use.
- Turn setscrews to adjust receivers for maximum sensitivity and transmitters for maximum output.
- Test batteries, using hydrometers and ammeters, and charge batteries as necessary.
- Test operation of tower transmission components, using sweep testing tools or software.
- Install, connect, or test underground or aboveground grounding systems.
- Test equipment functions such as signal strength and quality, transmission capacity, interference, and signal delay, using equipment such as oscilloscopes, circuit analyzers, frequency meters, and wattmeters.
- Test tubes and pickups in electronic amplifier units, and solder parts and connections as necessary.
- Play instruments to evaluate their sound quality and to locate any defects.
- Compare instrument pitches with tuning tool pitches to tune instruments.
- Strike wood, fiberglass, or metal bars of instruments, and use tuned blocks, stroboscopes, or electronic tuners to evaluate tones made by instruments.
- 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.
- Disassemble instruments and parts for repair and adjustment.
- Repair or replace musical instrument parts and components, such as strings, bridges, felts, and keys, using hand and power tools.
- Inspect instruments to locate defects, and to determine their value or the level of restoration required.
- String instruments, and adjust trusses and bridges of instruments to obtain specified string tensions and heights.
- Polish instruments, using rags and polishing compounds, buffing wheels, or burnishing tools.
- Repair cracks in wood or metal instruments, using pinning wire, lathes, fillers, clamps, or soldering irons.
- Mix and measure glue that will be used for instrument repair.
- Shape old parts and replacement parts to improve tone or intonation, using hand tools, lathes, or soldering irons.
- Refinish instruments to protect and decorate them, using hand tools, buffing tools, and varnish.
- Make wood replacement parts, using woodworking machines and hand tools.
- Align pads and keys on reed or wind instruments.
- Solder posts and parts to hold them in their proper places.
- Remove dents and burrs from metal instruments, using mallets and burnishing tools.
- Adjust felt hammers on pianos to increase tonal mellowness or brilliance, using sanding paddles, lacquer, or needles.
- Remove irregularities from tuning pins, strings, and hammers of pianos, using wood blocks or filing tools.
- Wash metal instruments in lacquer-stripping and cyanide solutions to remove lacquer and tarnish.
- Assemble and install new pipe organs and pianos in buildings.
- Refinish and polish piano cabinets or cases to prepare them for sale.
- Deliver pianos to purchasers or to locations of their use.
- Remove drumheads by removing tension rods with drum keys and cutting tools.
- Place rim hoops back onto drum shells to allow new drumheads to dry and become taut.
- Solder or weld frames of mallet instruments and metal drum parts.
- Repair breaks in percussion instruments, such as drums and cymbals, using drill presses, power saws, glue, clamps, grinding wheels, or other hand tools.
- Cut new drumheads from animal skins, using scissors, and soak drumheads in water to make them pliable.
- Assemble bars onto percussion instruments.
- Stretch drumheads over rim hoops and tuck them around and under the hoops, using hand tucking tools.
- Cut out sections around cracks on percussion instruments to prevent cracks from advancing, using shears or grinding wheels.
- Clean, sand, and paint parts of percussion instruments to maintain their condition.
- File metal reeds until their pitches correspond with standard tuning bar pitches.
- Replace xylophone bars and wheels.
- Remove material from bars of percussion instruments to obtain specified tones, using bandsaws, sanding machines, machine grinders, or hand files and scrapers.
- Test tubes and pickups in electronic amplifier units, and solder parts and connections as necessary.
- Play instruments to evaluate their sound quality and to locate any defects.
- Compare instrument pitches with tuning tool pitches to tune instruments.
- Strike wood, fiberglass, or metal bars of instruments, and use tuned blocks, stroboscopes, or electronic tuners to evaluate tones made by instruments.
- Test circuits and components of malfunctioning telecommunications equipment to isolate sources of malfunctions, using test meters, circuit diagrams, polarity probes, and other hand tools.
- Test repaired, newly installed, or updated equipment to ensure that it functions properly and conforms to specifications, using test equipment and observation.
- Test connections to ensure that power supplies are adequate and that communications links function.
- Demonstrate equipment to customers and explain its use, responding to any inquiries or complaints.
- Climb poles and ladders, use truck-mounted booms, and enter areas such as manholes and cable vaults to install, maintain, or inspect equipment.
- Assemble and install communication equipment such as data and telephone communication lines, wiring, switching equipment, wiring frames, power apparatus, computer systems, and networks.
- Run wires between components and to outside cable systems, connecting them to wires from telephone poles or underground cable accesses.
- Note differences in wire and cable colors so that work can be performed correctly.
- Inspect equipment on a regular basis to ensure proper functioning.
- Collaborate with other workers to locate and correct malfunctions.
- Remove loose wires and other debris after work is completed.
- Repair or replace faulty equipment, such as defective and damaged telephones, wires, switching system components, and associated equipment.
- Maintain computer and manual records pertaining to facilities and equipment.
- Communicate with bases, using telephones or two-way radios to receive instructions or technical advice, or to report equipment status.
- Remove and remake connections to change circuit layouts, following work orders or diagrams.
- Clean and maintain tools, test equipment, and motor vehicles.
- Perform database verifications, using computers.
- Request support from technical service centers when on-site procedures fail to solve installation or maintenance problems.
- Analyze test readings, computer printouts, and trouble reports to determine equipment repair needs and required repair methods.
- Adjust or modify equipment to enhance equipment performance or to respond to customer requests.
- Remove and replace plug-in circuit equipment.
- Refer to manufacturers' manuals to obtain maintenance instructions pertaining to specific malfunctions.
- Dig holes or trenches as necessary for equipment installation and access.
- Review manufacturer's instructions, manuals, technical specifications, building permits, and ordinances to determine communication equipment requirements and procedures.
- Drive crew trucks to and from work areas.
- Route and connect cables and lines to switches, switchboard equipment, and distributing frames, using wire-wrap guns or soldering irons to connect wires to terminals.
- Designate cables available for use.
- Diagnose and correct problems from remote locations, using special switchboards to find the sources of problems.
- Program computerized switches and switchboards to provide requested features.
- Enter codes needed to correct electronic switching system programming.
- Examine telephone transmission facilities to determine requirements for new or additional telephone services.
- Measure distances from landmarks to identify exact installation sites for equipment.
- Install updated software and programs that maintain existing software or provide requested features, such as time-correlated call routing.
- Perform routine maintenance on equipment, including adjusting and lubricating components and painting worn or exposed areas.
- Determine viability of sites through observation, and discuss site locations and construction requirements with customers.
- Install telephone station equipment, such as intercommunication systems, transmitters, receivers, relays, and ringers, and related apparatus, such as coin collectors, telephone booths, and switching-key equipment.
- Clean switches and replace contact points, using vacuum hoses, solvents, and hand tools.
- Provide input into the design and manufacturing of new equipment.
- Address special issues or situations, such as illegal or unauthorized use of equipment, or cases of electrical or acoustic shock.
- Place intercept circuits on terminals to handle vacant lines in central office installations.
- Test circuits and components of malfunctioning telecommunications equipment to isolate sources of malfunctions, using test meters, circuit diagrams, polarity probes, and other hand tools.
- Test repaired, newly installed, or updated equipment to ensure that it functions properly and conforms to specifications, using test equipment and observation.
- Test connections to ensure that power supplies are adequate and that communications links function.
- Test and replace electrical components and wiring, using test meters, soldering equipment, and hand tools.
- Reassemble machines and equipment following repair, testing operation and making adjustments, as necessary.
- Maintain, repair, and overhaul farm machinery and vehicles, such as tractors, harvesters, and irrigation systems.
- Dismantle defective machines for repair, using hand tools.
- Record details of repairs made and parts used.
- Clean and lubricate parts.
- Tune or overhaul engines.
- Examine and listen to equipment, read inspection reports, and confer with customers to locate and diagnose malfunctions.
- Repair or replace defective parts, using hand tools, milling and woodworking machines, lathes, welding equipment, grinders, or saws.
- Drive trucks to haul tools and equipment for on-site repair of large machinery.
- Fabricate new metal parts, using drill presses, engine lathes, and other machine tools.
- Repair bent or torn sheet metal.
- Calculate bills according to record of repairs made, labor time, and parts used.
- Install and repair agricultural irrigation, plumbing, and sprinkler systems.
- Test and replace electrical components and wiring, using test meters, soldering equipment, and hand tools.
- Reassemble machines and equipment following repair, testing operation and making adjustments, as necessary.
- Reassemble and test equipment after repairs.
- Inspect and test electrical systems and equipment to locate and diagnose malfunctions, using visual inspections, testing devices, and computer software.
- Adjust, repair, or replace defective wiring and relays in ignition, lighting, air-conditioning, and safety control systems, using electrician's tools.
- 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.
- Maintain equipment service records.
- Refer to schematics and manufacturers' specifications that show connections and provide instructions on how to locate problems.
- Install fixtures, outlets, terminal boards, switches, and wall boxes, using hand tools.
- Install new fuses, electrical cables, or power sources as required.
- Cut openings and drill holes for fixtures, outlet boxes, and fuse holders, using electric drills and routers.
- Confer with customers to determine the nature of malfunctions.
- Install electrical equipment such as air-conditioning, heating, or ignition systems and components such as generator brushes and commutators, using hand tools.
- Repair or rebuild equipment such as starters, generators, distributors, or door controls, using electrician's tools.
- Estimate costs of repairs based on parts and labor requirements.
- Measure, cut, and install frameworks and conduit to support and connect wiring, control panels, and junction boxes, using hand tools.
- Reassemble and test equipment after repairs.
- Inspect and test electrical systems and equipment to locate and diagnose malfunctions, using visual inspections, testing devices, and computer software.
- Test and replace batteries and other electronic components.
- Test timepiece accuracy and performance, using meters and other electronic instruments.
- Clean, rinse, and dry timepiece parts, using solutions and ultrasonic or mechanical watch-cleaning machines.
- Adjust timing regulators, using truing calipers, watch-rate recorders, and tweezers.
- Reassemble timepieces, replacing glass faces and batteries, before returning them to customers.
- Disassemble timepieces and inspect them for defective, worn, misaligned, or rusty parts, using loupes.
- Oil moving parts of timepieces.
- Estimate repair costs and timepiece values.
- Repair or replace broken, damaged, or worn parts on timepieces, using lathes, drill presses, and hand tools.
- Perform regular adjustment and maintenance on timepieces, watch cases, and watch bands.
- Order supplies, including replacement parts, for timing instruments.
- Gather information from customers about a timepiece's problems and its service history.
- Record quantities and types of timepieces repaired, serial and model numbers of items, work performed, and charges for repairs.
- Demagnetize mechanisms, using demagnetizing machines.
- Fabricate parts for watches and clocks, using small lathes and other machines.
- Test and replace batteries and other electronic components.
- Test timepiece accuracy and performance, using meters and other electronic instruments.
- Test conductors, according to electrical diagrams and specifications, to identify corresponding conductors and to prevent incorrect connections.
- Inspect and test power lines and auxiliary equipment to locate and identify problems, using reading and testing instruments.
- Adhere to safety practices and procedures, such as checking equipment regularly and erecting barriers around work areas.
- Drive vehicles equipped with tools and materials to job sites.
- Open switches or attach grounding devices to remove electrical hazards from disturbed or fallen lines or to facilitate repairs.
- Climb poles or use truck-mounted buckets to access equipment.
- Install, maintain, and repair electrical distribution and transmission systems, including conduits, cables, wires, and related equipment, such as transformers, circuit breakers, and switches.
- Coordinate work assignment preparation and completion with other workers.
- Replace or straighten damaged poles.
- String wire conductors and cables between poles, towers, trenches, pylons, and buildings, setting lines in place and using winches to adjust tension.
- Attach cross-arms, insulators, and auxiliary equipment to poles prior to installing them.
- Dig holes, using augers, and set poles, using cranes and power equipment.
- Travel in trucks, helicopters, and airplanes to inspect lines for freedom from obstruction and adequacy of insulation.
- Identify defective sectionalizing devices, circuit breakers, fuses, voltage regulators, transformers, switches, relays, or wiring, using wiring diagrams and electrical-testing instruments.
- Install watt-hour meters and connect service drops between power lines and consumers' facilities.
- Place insulating or fireproofing materials over conductors and joints.
- Splice or solder cables together or to overhead transmission lines, customer service lines, or street light lines, using hand tools, epoxies, or specialized equipment.
- Trim trees that could be hazardous to the functioning of cables or wires.
- Pull up cable by hand from large reels mounted on trucks.
- Lay underground cable directly in trenches, or string it through conduit running through the trenches.
- Cut trenches for laying underground cables, using trenchers and cable plows.
- Cut and peel lead sheathing and insulation from defective or newly installed cables and conduits prior to splicing.
- Clean, tin, and splice corresponding conductors by twisting ends together or by joining ends with metal clamps and soldering connections.
- Test conductors, according to electrical diagrams and specifications, to identify corresponding conductors and to prevent incorrect connections.
- Inspect and test power lines and auxiliary equipment to locate and identify problems, using reading and testing instruments.
- Test electronic computer components in automobiles to ensure proper operation.
- Test and adjust repaired systems to meet manufacturers' performance specifications.
- Inspect vehicles for damage and record findings so that necessary repairs can be made.
- Test drive vehicles and test components and systems, using equipment such as infrared engine analyzers, compression gauges, and computerized diagnostic devices.
- Repair, reline, replace, and adjust brakes.
- Review work orders and discuss work with supervisors.
- Estimate costs of vehicle repair.
- Confer with customers to obtain descriptions of vehicle problems and to discuss work to be performed and future repair requirements.
- Align vehicles' front ends.
- Align wheels, axles, frames, torsion bars, and steering mechanisms of automobiles, using special alignment equipment and wheel-balancing machines.
- Tear down, repair, and rebuild faulty assemblies, such as power systems, steering systems, and linkages.
- Perform routine and scheduled maintenance services, such as oil changes, lubrications, and tune-ups.
- Plan work procedures, using charts, technical manuals, and experience.
- Follow checklists to ensure all important parts are examined, including belts, hoses, steering systems, spark plugs, brake and fuel systems, wheel bearings, and other potentially troublesome areas.
- Maintain cleanliness of work area.
- Change spark plugs, fuel filters, air filters, and batteries in hybrid electric vehicles.
- Repair and service air conditioning, heating, engine cooling, and electrical systems.
- Disassemble units and inspect parts for wear, using micrometers, calipers, and gauges.
- Overhaul or replace carburetors, blowers, generators, distributors, starters, and pumps.
- Repair or replace parts such as pistons, rods, gears, valves, and bearings.
- Rewire ignition systems, lights, and instrument panels.
- Troubleshoot fuel, ignition, and emissions control systems, using electronic testing equipment.
- Tune automobile engines to ensure proper and efficient functioning.
- Repair, replace, or adjust defective fuel injectors, carburetor parts, and gasoline filters.
- Install, adjust, or repair hydraulic or electromagnetic automatic lift mechanisms used to raise and lower automobile windows, seats, and tops.
- Conduct visual inspections of compressed natural gas fuel systems to identify cracks, gouges, abrasions, discoloration, broken fibers, loose brackets, damaged gaskets, or other problems.
- Rebuild parts, such as crankshafts and cylinder blocks.
- Diagnose and replace or repair engine management systems or related sensors for flexible fuel vehicles (FFVs) with ignition timing, fuel rate, alcohol concentration, or air-to-fuel ratio malfunctions.
- Repair or rebuild transmissions.
- Retrofit vehicle fuel systems with aftermarket products, such as vapor transfer devices, evaporation control devices, swirlers, lean burn devices, and friction reduction devices, to enhance combustion and fuel efficiency.
- Test electronic computer components in automobiles to ensure proper operation.
- Test and adjust repaired systems to meet manufacturers' performance specifications.
- Test electrical circuits or components for continuity, using electrical test equipment.
- Test pipes, lines, components, and connections for leaks.
- Comply with all applicable standards, policies, or procedures, such as safety procedures or the maintenance of a clean work area.
- Study blueprints, design specifications, or manufacturers' recommendations to ascertain the configuration of heating or cooling equipment components and to ensure the proper installation of components.
- Discuss heating or cooling system malfunctions with users to isolate problems or to verify that repairs corrected malfunctions.
- Connect heating or air conditioning equipment to fuel, water, or refrigerant source to form complete circuit.
- Adjust system controls to settings recommended by manufacturer to balance system.
- Recommend, develop, or perform preventive or general maintenance procedures, such as cleaning, power-washing, or vacuuming equipment, oiling parts, or changing filters.
- Inspect and test systems to verify system compliance with plans and specifications or to detect and locate malfunctions.
- Repair or replace defective equipment, components, or wiring.
- Install or repair self-contained ground source heat pumps or hybrid ground or air source heat pumps to minimize carbon-based energy consumption and reduce carbon emissions.
- Install, connect, or adjust thermostats, humidistats, or timers.
- Install auxiliary components to heating or cooling equipment, such as expansion or discharge valves, air ducts, pipes, blowers, dampers, flues, or stokers.
- Braze or solder parts to repair defective joints and leaks.
- Lay out and connect electrical wiring between controls and equipment, according to wiring diagrams, using electrician's hand tools.
- Perform mechanical overhauls and refrigerant reclaiming.
- Install expansion and control valves, using acetylene torches and wrenches.
- Measure, cut, thread, or bend pipe or tubing, using pipe fitter's tools.
- Mount compressor, condenser, and other components in specified locations on frames, using hand tools and acetylene welding equipment.
- Install dehumidifiers or related equipment for spaces that require cool, dry air to operate efficiently, such as computer rooms.
- Record and report time, materials, faults, deficiencies, or other unusual occurrences on work orders.
- Keep records of repairs and replacements made and causes of malfunctions.
- Cut or drill holes in floors, walls, or roof to install equipment, using power saws or drills.
- Estimate, order, pick up, deliver, and install materials and supplies needed to maintain equipment in good working condition.
- Schedule work with customers and initiate work orders, house requisitions, and orders from stock.
- Supervise and instruct assistants.
- Lay out reference points for installation of structural and functional components, using measuring instruments.
- Lift and align components into position, using hoist or block and tackle.
- Install or repair air purification systems, such as specialized filters or ultraviolet (UV) light purification systems.
- Repair or service heating, ventilating, and air conditioning (HVAC) systems to improve efficiency, such as by changing filters, cleaning ducts, and refilling non-toxic refrigerants.
- Test electrical circuits or components for continuity, using electrical test equipment.
- Test pipes, lines, components, and connections for leaks.
- Trace electrical circuits, following diagrams, and conduct tests with circuit testers and other equipment to locate shorts and grounds.
- Observe and test operation of appliances following installation, and make any initial installation adjustments that are necessary.
- Bill customers for repair work, and collect payment.
- Observe and examine appliances during operation to detect specific malfunctions such as loose parts or leaking fluid.
- Talk to customers or refer to work orders to establish the nature of appliance malfunctions.
- Refer to schematic drawings, product manuals, and troubleshooting guides to diagnose and repair problems.
- Replace worn and defective parts such as switches, bearings, transmissions, belts, gears, circuit boards, or defective wiring.
- Provide repair cost estimates, and recommend whether appliance repair or replacement is a better choice.
- Disassemble appliances so that problems can be diagnosed and repairs can be made.
- Respond to emergency calls for problems such as gas leaks.
- Service and repair domestic electrical or gas appliances, such as clothes washers, refrigerators, stoves, and dryers.
- Reassemble units after repairs are made, making adjustments and cleaning and lubricating parts as needed.
- Record maintenance and repair work performed on appliances.
- Test and examine gas pipelines and equipment to locate leaks and faulty connections, and to determine the pressure and flow of gas.
- Light and adjust pilot lights on gas stoves, and examine valves and burners for gas leakage and specified flame.
- Instruct customers regarding operation and care of appliances, and provide information such as emergency service numbers.
- Contact supervisors or offices to receive repair assignments.
- Maintain stocks of parts used in on-site installation, maintenance, and repair of appliances.
- Level refrigerators, adjust doors, and connect water lines to water pipes for ice makers and water dispensers, using hand tools.
- Set appliance thermostats, and check to ensure that they are functioning properly.
- Install appliances such as refrigerators, washing machines, and stoves.
- Level washing machines and connect hoses to water pipes, using hand tools.
- Clean and reinstall parts.
- Clean, lubricate, and touch up minor defects on newly installed or repaired appliances.
- Conserve, recover, and recycle refrigerants used in cooling systems.
- Install gas pipes and water lines to connect appliances to existing gas lines or plumbing.
- Take measurements to determine if appliances will fit in installation locations, performing minor carpentry work when necessary to ensure proper installation.
- Measure, cut, and thread pipe, and connect it to feeder lines and equipment or appliances, using rules and hand tools.
- Assemble new or reconditioned appliances.
- Disassemble and reinstall existing kitchen cabinets, or assemble and install prefabricated kitchen cabinets and trim in conjunction with appliance installation.
- Hang steel supports from beams or joists to hold hoses, vents, and gas pipes in place.
- Trace electrical circuits, following diagrams, and conduct tests with circuit testers and other equipment to locate shorts and grounds.
- Observe and test operation of appliances following installation, and make any initial installation adjustments that are necessary.
- Calibrate and test equipment, and locate circuit and component faults, using hand and power tools and measuring and testing instruments such as resistance meters and oscilloscopes.
- Install, service, and repair electronic equipment or instruments such as televisions, radios, and videocassette recorders.
- Confer with customers to determine the nature of problems or to explain repairs.
- Position or mount speakers, and wire speakers to consoles.
- Instruct customers on the safe and proper use of equipment.
- Make service calls to repair units in customers' homes, or return units to shops for major repairs.
- Read and interpret electronic circuit diagrams, function block diagrams, specifications, engineering drawings, and service manuals.
- Tune or adjust equipment and instruments to obtain optimum visual or auditory reception, according to specifications, manuals, and drawings.
- Keep records of work orders and test and maintenance reports.
- Disassemble entertainment equipment and repair or replace loose, worn, or defective components and wiring, using hand tools and soldering irons.
- Compute cost estimates for labor and materials.
- Calibrate and test equipment, and locate circuit and component faults, using hand and power tools and measuring and testing instruments such as resistance meters and oscilloscopes.
- Test and repair circuits and sensors, following wiring and system specifications.
- Install, maintain, or repair security systems, alarm devices, or related equipment, following blueprints of electrical layouts and building plans.
- Mount and fasten control panels, door and window contacts, sensors, or video cameras, and attach electrical and telephone wiring to connect components.
- Demonstrate systems for customers and explain details, such as the causes and consequences of false alarms.
- Feed cables through access holes, roof spaces, or cavity walls to reach fixture outlets, positioning and terminating cables, wires, or strapping.
- Examine systems to locate problems, such as loose connections or broken insulation.
- Test backup batteries, keypad programming, sirens, or other security features to ensure proper functioning or to diagnose malfunctions.
- Drill holes for wiring in wall studs, joists, ceilings, or floors.
- Inspect installation sites and study work orders, building plans, and installation manuals to determine materials requirements and installation procedures.
- Consult with clients to assess risks and to determine security requirements.
- Mount raceways and conduits and fasten wires to wood framing, using staplers.
- Adjust sensitivity of units, based on room structures and manufacturers' recommendations, using programming keypads.
- Keep informed of new products and developments.
- Order replacement parts.
- Prepare documents, such as invoices or warranties.
- Provide customers with cost estimates for equipment installation.
- Test and repair circuits and sensors, following wiring and system specifications.
