- Inspect, test, and listen to defective equipment to diagnose malfunctions, using test instruments such as handheld computers, motor analyzers, chassis charts, or pressure gauges.
Occupations with related tasks Save Table: XLSX CSV
| Closely Related Tasks | All Related Tasks | Job Zone | Code | Occupation |
| 7 | 9 | 3 | 49-3011.00 | Aircraft Mechanics and Service Technicians |
| 4 | 4 | 3 | 49-3051.00 | Motorboat Mechanics and Service Technicians 
|
| 4 | 4 | 2 | 49-3093.00 | Tire Repairers and Changers |
| 3 | 4 | 3 | 49-9063.00 | Musical Instrument Repairers and Tuners |
| 2 | 4 | 3 | 49-3052.00 | Motorcycle Mechanics |
| 2 | 4 | 3 | 49-9097.00 | Signal and Track Switch Repairers |
| 2 | 4 | 2 | 49-3092.00 | Recreational Vehicle Service Technicians
|
| 2 | 3 | 2 | 49-9031.00 | Home Appliance Repairers |
| 2 | 2 | 2 | 49-9095.00 | Manufactured Building and Mobile Home Installers |
| 2 | 2 | 2 | 49-3053.00 | Outdoor Power Equipment and Other Small Engine Mechanics |
| 2 | 2 | 2 | 49-9098.00 | Helpers--Installation, Maintenance, and Repair Workers |
| 2 | 2 | 3 | 49-9041.00 | Industrial Machinery Mechanics
|
| 2 | 2 | 3 | 49-9043.00 | Maintenance Workers, Machinery
|
| 2 | 2 | 3 | 49-3042.00 | Mobile Heavy Equipment Mechanics, Except Engines
|
| 2 | 2 | 3 | 49-9092.00 | Commercial Divers
|
| 2 | 2 | 3 | 49-9071.00 | Maintenance and Repair Workers, General
|
| 1 | 6 | 2 | 53-4022.00 | Railroad Brake, Signal, and Switch Operators and Locomotive Firers |
| 1 | 4 | 3 | 49-9081.00 | Wind Turbine Service Technicians
|
| 1 | 4 | 2 | 49-3043.00 | Rail Car Repairers |
| 1 | 4 | 3 | 49-3023.00 | Automotive Service Technicians and Mechanics |
| 1 | 4 | 3 | 49-2092.00 | Electric Motor, Power Tool, and Related Repairers |
| 1 | 3 | 3 | 49-2011.00 | Computer, Automated Teller, and Office Machine Repairers |
| 1 | 2 | 3 | 49-3041.00 | Farm Equipment Mechanics and Service Technicians
|
| 1 | 2 | 3 | 49-9064.00 | Watch and Clock Repairers |
| 1 | 2 | 3 | 49-2094.00 | Electrical and Electronics Repairers, Commercial and Industrial Equipment |
| 1 | 2 | 3 | 49-9062.00 | Medical Equipment Repairers
|
| 1 | 1 | 3 | 13-1032.00 | Insurance Appraisers, Auto Damage |
| 1 | 1 | 3 | 49-9061.00 | Camera and Photographic Equipment Repairers |
| 1 | 1 | 2 | 53-6032.00 | Aircraft Service Attendants
|
| 1 | 1 | 2 | 49-9091.00 | Coin, Vending, and Amusement Machine Servicers and Repairers |
| 1 | 1 | 2 | 49-9044.00 | Millwrights |
| 1 | 1 | 2 | 49-9099.01 | Geothermal Technicians |
| 1 | 1 | 2 | 49-9011.00 | Mechanical Door Repairers
|
| 1 | 1 | 3 | 49-9012.00 | Control and Valve Installers and Repairers, Except Mechanical Door |
- Examine and inspect aircraft components, including landing gear, hydraulic systems, and deicers to locate cracks, breaks, leaks, or other problems.
- Conduct routine and special inspections as required by regulations.
- Measure parts for wear, using precision instruments.
- Test operation of engines and other systems, using test equipment, such as ignition analyzers, compression checkers, distributor timers, or ammeters.
- Examine engines through specially designed openings while working from ladders or scaffolds, or use hoists or lifts to remove the entire engine from an aircraft.
- Listen to operating engines to detect and diagnose malfunctions, such as sticking or burned valves.
- Remove, inspect, repair, and install in-flight refueling stores and external fuel tanks.
- Inspect airframes for wear or other defects.
- Check for corrosion, distortion, and invisible cracks in the fuselage, wings, and tail, using x-ray and magnetic inspection equipment.
- Inspect completed work to certify that maintenance meets standards and that aircraft are ready for operation.
- Read and interpret maintenance manuals, service bulletins, and other specifications to determine the feasibility and method of repairing or replacing malfunctioning or damaged components.
- Maintain repair logs, documenting all preventive and corrective aircraft maintenance.
- Modify aircraft structures, space vehicles, systems, or components, following drawings, schematics, charts, engineering orders, and technical publications.
- Obtain fuel and oil samples and check them for contamination.
- Maintain, repair, and rebuild aircraft structures, functional components, and parts, such as wings and fuselage, rigging, hydraulic units, oxygen systems, fuel systems, electrical systems, gaskets, or seals.
- Replace or repair worn, defective, or damaged components, using hand tools, gauges, and testing equipment.
- Read and interpret pilots' descriptions of problems to diagnose causes.
- Measure the tension of control cables.
- Spread plastic film over areas to be repaired to prevent damage to surrounding areas.
- Remove or install aircraft engines, using hoists or forklift trucks.
- Assemble and install electrical, plumbing, mechanical, hydraulic, and structural components and accessories, using hand or power tools.
- Locate and mark dimensions and reference lines on defective or replacement parts, using templates, scribes, compasses, and steel rules.
- Fabricate defective sections or parts, using metal fabricating machines, saws, brakes, shears, and grinders.
- 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.
- Trim and shape replacement body sections to specified sizes and fits and secure sections in place, using adhesives, hand tools, and power tools.
- Accompany aircraft on flights to make in-flight adjustments and corrections.
- Remove or cut out defective parts or drill holes to gain access to internal defects or damage, using drills and punches.
- Install and align repaired or replacement parts for subsequent riveting or welding, using clamps and wrenches.
- Inventory and requisition or order supplies, parts, materials, and equipment.
- Clean, strip, prime, and sand structural surfaces and materials to prepare them for bonding.
- Communicate with other workers to coordinate fitting and alignment of heavy parts, or to facilitate processing of repair parts.
- Disassemble engines and inspect parts, such as turbine blades or cylinders, for corrosion, wear, warping, cracks, and leaks, using precision measuring instruments, x-rays, and magnetic inspection equipment.
- Cure bonded structures, using portable or stationary curing equipment.
- Clean engines, sediment bulk and screens, and carburetors, adjusting carburetor float levels.
- Determine repair limits for engine hot section parts.
- Prepare and paint aircraft surfaces.
- Examine and inspect aircraft components, including landing gear, hydraulic systems, and deicers to locate cracks, breaks, leaks, or other problems.
- Conduct routine and special inspections as required by regulations.
- Measure parts for wear, using precision instruments.
- Test operation of engines and other systems, using test equipment, such as ignition analyzers, compression checkers, distributor timers, or ammeters.
- Examine engines through specially designed openings while working from ladders or scaffolds, or use hoists or lifts to remove the entire engine from an aircraft.
- Listen to operating engines to detect and diagnose malfunctions, such as sticking or burned valves.
- Remove, inspect, repair, and install in-flight refueling stores and external fuel tanks.
- Inspect airframes for wear or other defects.
- Check for corrosion, distortion, and invisible cracks in the fuselage, wings, and tail, using x-ray and magnetic inspection equipment.
- Start motors and monitor performance for signs of malfunctioning, such as smoke, excessive vibration, or misfiring.
- Idle motors and observe thermometers to determine the effectiveness of cooling systems.
- Inspect and repair or adjust propellers or propeller shafts.
- Disassemble and inspect motors to locate defective parts, using mechanic's hand tools and gauges.
- Document inspection and test results and work performed or to be performed.
- Mount motors to boats, and operate boats at various speeds on waterways to conduct operational tests.
- Repair engine mechanical equipment, such as power tilts, bilge pumps, or power take-offs.
- Perform routine engine maintenance on motorboats, such as changing oil and filters.
- Replace parts, such as gears, magneto points, piston rings, or spark plugs, and reassemble engines.
- Adjust carburetor mixtures, electrical point settings, or timing while motors are running in water-filled test tanks.
- Set starter locks and align and repair steering or throttle controls, using gauges, screwdrivers, or wrenches.
- Adjust generators and replace faulty wiring, using hand tools and soldering irons.
- Repair or rework parts, using machine tools such as lathes, mills, drills, or grinders.
- Start motors and monitor performance for signs of malfunctioning, such as smoke, excessive vibration, or misfiring.
- Idle motors and observe thermometers to determine the effectiveness of cooling systems.
- Inspect and repair or adjust propellers or propeller shafts.
- Disassemble and inspect motors to locate defective parts, using mechanic's hand tools and gauges.
- Place wheels on balancing machines to determine counterweights required to balance wheels.
- Inspect tire casings for defects, such as holes or tears.
- Locate punctures in tubeless tires by visual inspection or by immersing inflated tires in water baths and observing air bubbles.
- Inflate inner tubes and immerse them in water to locate leaks.
- Raise vehicles, using hydraulic jacks.
- Remount wheels onto vehicles.
- Unbolt and remove wheels from vehicles, using lug wrenches or other hand or power tools.
- Identify tire size and ply and inflate tires accordingly.
- Replace valve stems and remove puncturing objects.
- Hammer required counterweights onto rims of wheels.
- Reassemble tires onto wheels.
- Seal punctures in tubeless tires by inserting adhesive material and expanding rubber plugs into punctures, using hand tools.
- Glue tire patches over ruptures in tire casings, using rubber cement.
- Assist mechanics and perform various mechanical duties, such as changing oil or checking and replacing batteries.
- Rotate tires to different positions on vehicles, using hand tools.
- Clean and tidy up the shop.
- Buff defective areas of inner tubes, using scrapers.
- Order replacements for tires or tubes.
- Separate tubed tires from wheels, using rubber mallets and metal bars or mechanical tire changers.
- Clean sides of whitewall tires.
- Roll new rubber treads, known as camelbacks, over tire casings and mold the semi-raw rubber treads onto the buffed casings.
- Prepare rims and wheel drums for reassembly by scraping, grinding, or sandblasting.
- Apply rubber cement to buffed tire casings prior to vulcanization process.
- Patch tubes with adhesive rubber patches or seal rubber patches to tubes, using hot vulcanizing plates.
- Place tire casings and tread rubber assemblies in tire molds for the vulcanization process and exert pressure to ensure good adhesion.
- Drive automobile or service trucks to industrial sites to provide services or respond to emergency calls.
- Place wheels on balancing machines to determine counterweights required to balance wheels.
- Inspect tire casings for defects, such as holes or tears.
- Locate punctures in tubeless tires by visual inspection or by immersing inflated tires in water baths and observing air bubbles.
- Inflate inner tubes and immerse them in water to locate leaks.
- 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 tubes and pickups in electronic amplifier units, and solder parts and connections as necessary.
- 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.
- 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 tubes and pickups in electronic amplifier units, and solder parts and connections as necessary.
- Listen to engines, examine vehicle frames, or confer with customers to determine nature and extent of malfunction or damage.
- Reassemble and test subassembly units.
- Mount, balance, change, or check condition or pressure of tires.
- Connect test panels to engines and measure generator output, ignition timing, or other engine performance indicators.
- Replace defective parts, using hand tools, arbor presses, flexible power presses, or power tools.
- Dismantle engines and repair or replace defective parts, such as magnetos, carburetors, or generators.
- Repair or replace other parts, such as headlights, horns, handlebar controls, gasoline or oil tanks, starters, or mufflers.
- Disassemble subassembly units and examine condition, movement, or alignment of parts, visually or using gauges.
- Repair or adjust motorcycle subassemblies, such as forks, transmissions, brakes, or drive chains, according to specifications.
- Reassemble frames and reinstall engines after repairs.
- Remove cylinder heads and grind valves to scrape off carbon and replace defective valves, pistons, cylinders, or rings, using hand and power tools.
- Install motorcycle accessories.
- Hammer out dents and bends in frames and weld tears and breaks.
- Listen to engines, examine vehicle frames, or confer with customers to determine nature and extent of malfunction or damage.
- Reassemble and test subassembly units.
- Mount, balance, change, or check condition or pressure of tires.
- Connect test panels to engines and measure generator output, ignition timing, or other engine performance indicators.
- Test and repair track circuits.
- Test air lines and air cylinders on pneumatically operated gates.
- 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.
- 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.
- Test and repair track circuits.
- Test air lines and air cylinders on pneumatically operated gates.
- 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.
- Inspect, repair, or replace brake systems.
- Open and close doors, windows, or drawers to test their operation, trimming edges to fit, as necessary.
- Confer with customers, read work orders, or examine vehicles needing repair to determine the nature and extent of damage.
- Inspect recreational vehicles to diagnose problems and perform necessary adjustment, repair, or overhaul.
- Explain proper operation of vehicle systems to customers.
- Locate and repair frayed wiring, broken connections, or incorrect wiring, using ohmmeters, soldering irons, tape, or hand tools.
- Repair plumbing or propane gas lines, using caulking compounds and plastic or copper pipe.
- Examine or test operation of parts or systems to ensure completeness of repairs.
- Connect electrical systems to outside power sources, and activate switches to test the operation of appliances or light fixtures.
- Connect water hoses to inlet pipes of plumbing systems, and test operation of toilets or sinks.
- Diagnose and repair furnace or air conditioning systems.
- Repair leaks with caulking compound or replace pipes, using pipe wrenches.
- List parts needed, estimate costs, and plan work procedures, using parts lists, technical manuals, or diagrams.
- Remove damaged exterior panels, and repair and replace structural frame members.
- Reset hardware, using chisels, mallets, and screwdrivers.
- Refinish wood surfaces on cabinets, doors, moldings, or floors, using power sanders, putty, spray equipment, brushes, paints, or varnishes.
- Seal open sides of modular units to prepare them for shipment, using polyethylene sheets, nails, and hammers.
- Inspect, repair, or replace brake systems.
- Open and close doors, windows, or drawers to test their operation, trimming edges to fit, as necessary.
- Confer with customers, read work orders, or examine vehicles needing repair to determine the nature and extent of damage.
- Inspect recreational vehicles to diagnose problems and perform necessary adjustment, repair, or overhaul.
- Observe and examine appliances during operation to detect specific malfunctions such as loose parts or leaking fluid.
- Observe and test operation of appliances following installation, and make any initial installation adjustments that are necessary.
- Trace electrical circuits, following diagrams, and conduct tests with circuit testers and other equipment to locate shorts and grounds.
- Bill customers for repair work, and collect payment.
- 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.
- Observe and examine appliances during operation to detect specific malfunctions such as loose parts or leaking fluid.
- Observe and test operation of appliances following installation, and make any initial installation adjustments that are necessary.
- Trace electrical circuits, following diagrams, and conduct tests with circuit testers and other equipment to locate shorts and grounds.
- Inspect, examine, and test the operation of parts or systems to evaluate operating condition and to determine if repairs are needed.
- Open and close doors, windows, and drawers to test their operation, trimming edges to fit, using jackplanes or drawknives.
- Seal open sides of modular units to prepare them for shipment, using polyethylene sheets, nails, and hammers.
- Move and set up mobile homes or prefabricated buildings on owners' lots or at mobile home parks.
- Connect water hoses to inlet pipes of plumbing systems, and test operation of plumbing fixtures.
- Remove damaged exterior panels, repair and replace structural frame members, and seal leaks, using hand tools.
- List parts needed, estimate costs, and plan work procedures, using parts lists, technical manuals, and diagrams.
- Confer with customers or read work orders to determine the nature and extent of damage to units.
- Install, repair, and replace units, fixtures, appliances, and other items and systems in mobile and modular homes, prefabricated buildings, or travel trailers, using hand tools or power tools.
- Reset hardware, using chisels, mallets, and screwdrivers.
- Repair leaks in plumbing or gas lines, using caulking compounds and plastic or copper pipe.
- Locate and repair frayed wiring, broken connections, or incorrect wiring, using ohmmeters, soldering irons, tape, and hand tools.
- Connect electrical systems to outside power sources and activate switches to test the operation of appliances and light fixtures.
- Refinish wood surfaces on cabinets, doors, moldings, and floors, using power sanders, putty, spray equipment, brushes, paints, or varnishes.
- Inspect, examine, and test the operation of parts or systems to evaluate operating condition and to determine if repairs are needed.
- Open and close doors, windows, and drawers to test their operation, trimming edges to fit, using jackplanes or drawknives.
- Test and inspect engines to determine malfunctions, to locate missing and broken parts, and to verify repairs, using diagnostic instruments.
- Dismantle engines, using hand tools, and examine parts for defects.
- Record repairs made, time spent, and parts used.
- Repair and maintain gasoline engines used to power equipment such as portable saws, lawn mowers, generators, and compressors.
- Adjust points, valves, carburetors, distributors, and spark plug gaps, using feeler gauges.
- Repair or replace defective parts such as magnetos, water pumps, gears, pistons, and carburetors, using hand tools.
- Perform routine maintenance such as cleaning and oiling parts, honing cylinders, and tuning ignition systems.
- Reassemble engines after repair or maintenance work is complete.
- Replace motors.
- Obtain problem descriptions from customers, and prepare cost estimates for repairs.
- Show customers how to maintain equipment.
- Remove engines from equipment, and position and bolt engines to repair stands.
- Sell parts and equipment.
- Grind, ream, rebore, and re-tap parts to obtain specified clearances, using grinders, lathes, taps, reamers, boring machines, and micrometers.
- Test and inspect engines to determine malfunctions, to locate missing and broken parts, and to verify repairs, using diagnostic instruments.
- Dismantle engines, using hand tools, and examine parts for defects.
- Examine and test machinery, equipment, components, and parts for defects to ensure proper functioning.
- Tend and observe equipment and machinery to verify efficient and safe operation.
- Install or replace machinery, equipment, and new or replacement parts and instruments, using hand or power tools.
- Adjust, connect, or disconnect wiring, piping, tubing, and other parts, using hand or power tools.
- Clean or lubricate vehicles, machinery, equipment, instruments, tools, work areas, and other objects, using hand tools, power tools, and cleaning equipment.
- Diagnose electrical problems and install and rewire electrical components.
- Disassemble broken or defective equipment to facilitate repair and reassemble equipment when repairs are complete.
- Position vehicles, machinery, equipment, physical structures, and other objects for assembly or installation, using hand tools, power tools, and moving equipment.
- Transfer tools, parts, equipment, and supplies to and from work stations and other areas.
- Adjust, maintain, and repair tools, equipment, and machines, and assist more skilled workers with similar tasks.
- Order new parts to maintain inventory.
- Apply protective materials to equipment, components, and parts to prevent defects and corrosion.
- Design, weld, and fabricate parts, using blueprints or other mechanical plans.
- Assemble and maintain physical structures, using hand or power tools.
- Prepare work stations for use by mechanics and repairers.
- Hold or supply tools, parts, equipment, and supplies for other workers.
- Examine and test machinery, equipment, components, and parts for defects to ensure proper functioning.
- Tend and observe equipment and machinery to verify efficient and safe operation.
- Operate newly repaired machinery or equipment to verify the adequacy of repairs.
- Observe and test the operation of machinery or equipment to diagnose malfunctions, using voltmeters or other testing devices.
- Repair or maintain the operating condition of industrial production or processing machinery or equipment.
- Repair or replace broken or malfunctioning components of machinery or equipment.
- Clean, lubricate, or adjust parts, equipment, or machinery.
- Disassemble machinery or equipment to remove parts and make repairs.
- Reassemble equipment after completion of inspections, testing, or repairs.
- Examine parts for defects, such as breakage or excessive wear.
- Record repairs and maintenance performed.
- Record parts or materials used and order or requisition new parts or materials, as necessary.
- Analyze test results, machine error messages, or information obtained from operators to diagnose equipment problems.
- Study blueprints or manufacturers' manuals to determine correct installation or operation of machinery.
- Cut and weld metal to repair broken metal parts, fabricate new parts, or assemble new equipment.
- Enter codes and instructions to program computer-controlled machinery.
- Demonstrate equipment functions and features to machine operators.
- Assign schedules to work crews.
- Operate newly repaired machinery or equipment to verify the adequacy of repairs.
- Observe and test the operation of machinery or equipment to diagnose malfunctions, using voltmeters or other testing devices.
- Start machines and observe mechanical operation to determine efficiency and to detect problems.
- Inspect or test damaged machine parts, and mark defective areas or advise supervisors of repair needs.
- Read work orders and specifications to determine machines and equipment requiring repair or maintenance.
- Reassemble machines after the completion of repair or maintenance work.
- Dismantle machines and remove parts for repair, using hand tools, chain falls, jacks, cranes, or hoists.
- Install, replace, or change machine parts and attachments, according to production specifications.
- Collaborate with other workers to repair or move machines, machine parts, or equipment.
- Inventory and requisition machine parts, equipment, and other supplies so that stock can be maintained and replenished.
- Record production, repair, and machine maintenance information.
- Set up and operate machines, and adjust controls to regulate operations.
- Lubricate or apply adhesives or other materials to machines, machine parts, or other equipment according to specified procedures.
- Collect and discard worn machine parts and other refuse to maintain machinery and work areas.
- Clean machines and machine parts, using cleaning solvents, cloths, air guns, hoses, vacuums, or other equipment.
- Transport machine parts, tools, equipment, and other material between work areas and storage, using cranes, hoists, or dollies.
- Replace, empty, or replenish machine and equipment containers such as gas tanks or boxes.
- Replace or repair metal, wood, leather, glass, or other lining in machines, or in equipment compartments or containers.
- Remove hardened material from machines or machine parts, using abrasives, power and hand tools, jackhammers, sledgehammers, or other equipment.
- Measure, mix, prepare, and test chemical solutions used to clean or repair machinery and equipment.
- Start machines and observe mechanical operation to determine efficiency and to detect problems.
- Inspect or test damaged machine parts, and mark defective areas or advise supervisors of repair needs.
- Overhaul and test machines or equipment to ensure operating efficiency.
- Examine parts for damage or excessive wear, using micrometers and gauges.
- Repair and replace damaged or worn parts.
- Test mechanical products and equipment after repair or assembly to ensure proper performance and compliance with manufacturers' specifications.
- Operate and inspect machines or heavy equipment to diagnose defects.
- Read and understand operating manuals, blueprints, and technical drawings.
- 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.
- Repair, rewire, and troubleshoot electrical systems.
- Diagnose faults or malfunctions to determine required repairs, using engine diagnostic equipment such as computerized test equipment and calibration devices.
- Weld or solder broken parts and structural members, using electric or gas welders and soldering tools.
- Research, order, and maintain parts inventory for services and repairs.
- Fit bearings to adjust, repair, or overhaul mobile mechanical, hydraulic, and pneumatic equipment.
- Schedule maintenance for industrial machines and equipment, and keep equipment service records.
- Clean, lubricate, and perform other routine maintenance work on equipment and vehicles.
- Assemble gear systems, and align frames and gears.
- 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.
- Fabricate needed parts or items from sheet metal.
- Direct workers who are assembling or disassembling equipment or cleaning parts.
- Overhaul and test machines or equipment to ensure operating efficiency.
- Examine parts for damage or excessive wear, using micrometers and gauges.
- Inspect and test docks, ships, buoyage systems, plant intakes or outflows, or underwater pipelines, cables, or sewers, using closed circuit television, still photography, and testing equipment.
- Carry out non-destructive testing, such as tests for cracks on the legs of oil rigs at sea.
- Take appropriate safety precautions, such as monitoring dive lengths and depths and registering with authorities before diving expeditions begin.
- Check and maintain diving equipment, such as helmets, masks, air tanks, harnesses, or gauges.
- Communicate with workers on the surface while underwater, using signal lines or telephones.
- Descend into water with the aid of diver helpers, using scuba gear or diving suits.
- Obtain information about diving tasks and environmental conditions.
- Supervise or train other divers, including hobby divers.
- Inspect the condition of underwater steel or wood structures.
- Repair ships, bridge foundations, or other structures below the water line, using caulk, bolts, and hand tools.
- Recover objects by placing rigging around sunken objects, hooking rigging to crane lines, and operating winches, derricks, or cranes to raise objects.
- Operate underwater video, sonar, recording, or related equipment to investigate underwater structures or marine life.
- Take test samples or photographs to assess the condition of vessels or structures.
- Cut and weld steel, using underwater welding equipment, jigs, and supports.
- Install, inspect, clean, or repair piping or valves.
- Install pilings or footings for piers or bridges.
- Salvage wrecked ships or their cargo, using pneumatic power velocity and hydraulic tools and explosive charges, when necessary.
- Remove obstructions from strainers or marine railway or launching ways, using pneumatic or power hand tools.
- Set or guide placement of pilings or sandbags to provide support for structures, such as docks, bridges, cofferdams, or platforms.
- Perform activities related to underwater search and rescue, salvage, recovery, or cleanup operations.
- Perform offshore oil or gas exploration or extraction duties, such as conducting underwater surveys or repairing and maintaining drilling rigs or platforms.
- Drill holes in rock and rig explosives for underwater demolitions.
- Remove rubbish or pollution from the sea.
- Set up dive sites for recreational instruction.
- Cultivate or harvest marine species or perform routine work on fish farms.
- Inspect and test docks, ships, buoyage systems, plant intakes or outflows, or underwater pipelines, cables, or sewers, using closed circuit television, still photography, and testing equipment.
- Carry out non-destructive testing, such as tests for cracks on the legs of oil rigs at sea.
- Perform routine maintenance, such as inspecting drives, motors, or belts, checking fluid levels, replacing filters, or doing other preventive maintenance actions.
- Inspect, operate, or test machinery or equipment to diagnose machine malfunctions.
- Adjust functional parts of devices or control instruments, using hand tools, levels, plumb bobs, or straightedges.
- Order parts, supplies, or equipment from catalogs or suppliers.
- Diagnose mechanical problems and determine how to correct them, checking blueprints, repair manuals, or parts catalogs, as necessary.
- Design new equipment to aid in the repair or maintenance of machines, mechanical equipment, or building structures.
- Assemble, install, or repair wiring, electrical or electronic components, pipe systems, plumbing, machinery, or equipment.
- Clean or lubricate shafts, bearings, gears, or other parts of machinery.
- Estimate costs to repair machinery, equipment, or building structures.
- Align and balance new equipment after installation.
- Record type and cost of maintenance or repair work.
- Maintain or repair specialized equipment or machinery located in cafeterias, laundries, hospitals, stores, offices, or factories.
- Dismantle machines, equipment, or devices to access and remove defective parts, using hoists, cranes, hand tools, or power tools.
- Plan and lay out repair work, using diagrams, drawings, blueprints, maintenance manuals, or schematic diagrams.
- Install equipment to improve the energy or operational efficiency of residential or commercial buildings.
- Set up and operate machine tools to repair or fabricate machine parts, jigs, fixtures, or tools.
- Perform general cleaning of buildings or properties.
- Train or manage maintenance personnel or subcontractors.
- Fabricate or repair counters, benches, partitions, or other wooden structures, such as sheds or outbuildings.
- Paint or repair roofs, windows, doors, floors, woodwork, plaster, drywall, or other parts of building structures.
- Perform routine maintenance on boilers, such as replacing burners or hoses, installing replacement parts, or reinforcing structural weaknesses to ensure optimal boiler efficiency.
- Test and treat water supply.
- Provide groundskeeping services, such as landscaping or snow removal.
- Operate cutting torches or welding equipment to cut or join metal parts.
- Inspect used parts to determine changes in dimensional requirements, using rules, calipers, micrometers, or other measuring instruments.
- Assemble boilers at installation sites, using tools such as levels, plumb bobs, hammers, torches, or other hand tools.
- Lay brick to repair or maintain buildings, walls, arches, or other structures.
- Position, attach, or blow insulating materials to prevent energy losses from buildings, pipes, or other structures or objects.
- Grind and reseat valves, using valve-grinding machines.
- Repair machines, equipment, or structures, using tools such as hammers, hoists, saws, drills, wrenches, or equipment such as precision measuring instruments or electrical or electronic testing devices.
- Perform routine maintenance, such as inspecting drives, motors, or belts, checking fluid levels, replacing filters, or doing other preventive maintenance actions.
- Inspect, operate, or test machinery or equipment to diagnose machine malfunctions.
- Monitor trains as they go around curves to detect dragging equipment and smoking journal boxes.
- Inspect couplings, air hoses, journal boxes, and handbrakes to ensure that they are securely fastened and functioning properly.
- Inspect locomotives to detect damaged or worn parts.
- Monitor oil, temperature, and pressure gauges on dashboards to determine if engines are operating safely and efficiently.
- Inspect tracks, cars, and engines for defects and to determine service needs, sending engines and cars for repairs as necessary.
- Conduct brake tests to determine the condition of brakes on trains.
- Observe train signals along routes and verify their meanings for engineers.
- Signal locomotive engineers to start or stop trains when coupling or uncoupling cars, using hand signals, lanterns, or radio communication.
- Pull or push track switches to reroute cars.
- Observe signals from other crew members so that work activities can be coordinated.
- Observe tracks from left sides of locomotives to detect obstructions on tracks.
- Operate locomotives in emergency situations.
- Raise levers to couple and uncouple cars for makeup and breakup of trains.
- Climb ladders to tops of cars to set brakes.
- Receive oral or written instructions from yardmasters or yard conductors indicating track assignments and cars to be switched.
- Signal other workers to set brakes and to throw track switches when switching cars from trains to way stations.
- Check to see that trains are equipped with supplies such as fuel, water, and sand.
- Set flares, flags, lanterns, or torpedoes in front and at rear of trains during emergency stops to warn oncoming trains.
- Start diesel engines to warm engines before runs.
- Make minor repairs to couplings, air hoses, and journal boxes, using hand tools.
- Connect air hoses to cars, using wrenches.
- Operate and drive locomotives, diesel switch engines, dinkey engines, flatcars, and railcars in train yards and at industrial sites.
- Refuel and lubricate engines.
- Ride atop cars that have been shunted, and turn handwheels to control speeds or stop cars at specified positions.
- Adjust controls to regulate air-conditioning, heating, and lighting on trains for comfort of passengers.
- Record numbers of cars available, numbers of cars sent to repair stations, and types of service needed.
- Provide passengers with assistance entering and exiting trains.
- Answer questions from passengers concerning train rules, stations, and timetable information.
- Monitor trains as they go around curves to detect dragging equipment and smoking journal boxes.
- Inspect couplings, air hoses, journal boxes, and handbrakes to ensure that they are securely fastened and functioning properly.
- Inspect locomotives to detect damaged or worn parts.
- Monitor oil, temperature, and pressure gauges on dashboards to determine if engines are operating safely and efficiently.
- Inspect tracks, cars, and engines for defects and to determine service needs, sending engines and cars for repairs as necessary.
- Conduct brake tests to determine the condition of brakes on trains.
- Start or restart wind turbine generator systems to ensure proper operations.
- Test electrical components of wind systems with devices, such as voltage testers, multimeters, oscilloscopes, infrared testers, or fiber optic equipment.
- 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.
- Start or restart wind turbine generator systems to ensure proper operations.
- Test electrical components of wind systems with devices, such as voltage testers, multimeters, oscilloscopes, infrared testers, or fiber optic equipment.
- 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.
- Inspect components such as bearings, seals, gaskets, wheels, and coupler assemblies to determine if repairs are needed.
- Inspect the interior and exterior of rail cars coming into rail yards to identify defects and to determine the extent of wear and damage.
- Examine car roofs for wear and damage, and repair defective sections, using roofing material, cement, nails, and waterproof paint.
- Test electrical systems of cars by operating systems and using testing equipment such as ammeters.
- Record conditions of cars, and repair and maintenance work performed or to be performed.
- Repair or replace defective or worn parts such as bearings, pistons, and gears, using hand tools, torque wrenches, power tools, and welding equipment.
- Remove locomotives, car mechanical units, or other components, using pneumatic hoists and jacks, pinch bars, hand tools, and cutting torches.
- Test units for operability before and after repairs.
- Adjust repaired or replaced units as needed to ensure proper operation.
- Repair, fabricate, and install steel or wood fittings, using blueprints, shop sketches, and instruction manuals.
- Perform scheduled maintenance, and clean units and components.
- Paint car exteriors, interiors, and fixtures.
- Repair and maintain electrical and electronic controls for propulsion and braking systems.
- Disassemble units such as water pumps, control valves, and compressors so that repairs can be made.
- Measure diameters of axle wheel seats, using micrometers, and mark dimensions on axles so that wheels can be bored to specified dimensions.
- Replace defective wiring and insulation, and tighten electrical connections, using hand tools.
- Install and repair interior flooring, fixtures, walls, plumbing, steps, and platforms.
- Repair window sash frames, attach weather stripping and channels to frames, and replace window glass, using hand tools.
- Align car sides for installation of car ends and crossties, using width gauges, turnbuckles, and wrenches.
- Repair car upholstery.
- Inspect components such as bearings, seals, gaskets, wheels, and coupler assemblies to determine if repairs are needed.
- Inspect the interior and exterior of rail cars coming into rail yards to identify defects and to determine the extent of wear and damage.
- Examine car roofs for wear and damage, and repair defective sections, using roofing material, cement, nails, and waterproof paint.
- Test electrical systems of cars by operating systems and using testing equipment such as ammeters.
- 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.
- Inspect vehicles for damage and record findings so that necessary repairs can be made.
- Test and adjust repaired systems to meet manufacturers' performance specifications.
- Test electronic computer components in automobiles to ensure proper operation.
- 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.
- 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.
- 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.
- Inspect vehicles for damage and record findings so that necessary repairs can be made.
- Test and adjust repaired systems to meet manufacturers' performance specifications.
- Test electronic computer components in automobiles to ensure proper operation.
- Test equipment for overheating, using speed gauges and thermometers.
- 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 conditions, fluid levels, and specific gravities of electrolyte cells, using voltmeters, hydrometers, and thermometers.
- Test battery charges, and replace or recharge batteries as necessary.
- 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 equipment for overheating, using speed gauges and thermometers.
- 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 conditions, fluid levels, and specific gravities of electrolyte cells, using voltmeters, hydrometers, and thermometers.
- Test battery charges, and replace or recharge batteries as necessary.
- Operate machines to test functioning of parts or mechanisms.
- Test new systems to ensure that they are in working order.
- Test components or circuits of faulty equipment to locate defects, using oscilloscopes, signal generators, ammeters, voltmeters, or special diagnostic software programs.
- Reassemble machines after making repairs or replacing parts.
- Converse with customers to determine details of equipment problems.
- Disassemble machines to examine parts, such as wires, gears, or bearings for wear or defects, using hand or power tools and measuring devices.
- Advise customers concerning equipment operation, maintenance, or programming.
- Align, adjust, or calibrate equipment according to specifications.
- Repair, adjust, or replace electrical or mechanical components or parts, using hand tools, power tools, or soldering or welding equipment.
- Travel to customers' stores or offices to service machines or to provide emergency repair service.
- Maintain parts inventories and order any additional parts needed for repairs.
- Reinstall software programs or adjust settings on existing software to fix machine malfunctions.
- Clean, oil, or adjust mechanical parts to maintain machines' operating efficiency and to prevent breakdowns.
- Maintain records of equipment maintenance work or repairs.
- Complete repair bills, shop records, time cards, or expense reports.
- Install and configure new equipment, including operating software or peripheral equipment.
- Analyze equipment performance records to assess equipment functioning.
- Read specifications, such as blueprints, charts, or schematics, to determine machine settings or adjustments.
- Update existing equipment, performing tasks such as installing updated circuit boards or additional memory.
- Assemble machines according to specifications, using hand or power tools and measuring devices.
- Lay cable and hook up electrical connections between machines, power sources, and phone lines.
- Enter information into computers to copy programs from one electronic component to another or to draw, modify, or store schematics.
- Fill machines with toners, inks, or other duplicating fluids.
- Train new repairers.
- Calibrate testing instruments.
- Operate machines to test functioning of parts or mechanisms.
- Test new systems to ensure that they are in working order.
- Test components or circuits of faulty equipment to locate defects, using oscilloscopes, signal generators, ammeters, voltmeters, or special diagnostic software programs.
- Reassemble machines and equipment following repair, testing operation and making adjustments, as necessary.
- Test and replace electrical components and wiring, using test meters, soldering equipment, and hand tools.
- 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.
- Reassemble machines and equipment following repair, testing operation and making adjustments, as necessary.
- Test and replace electrical components and wiring, using test meters, soldering equipment, and hand tools.
- Test timepiece accuracy and performance, using meters and other electronic instruments.
- Test and replace batteries and other electronic components.
- 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 timepiece accuracy and performance, using meters and other electronic instruments.
- Test and replace batteries and other electronic components.
- Set up and test industrial equipment to ensure that it functions properly.
- Test faulty equipment to diagnose malfunctions, using test equipment or software, and applying knowledge of the functional operation of electronic units and systems.
- Maintain equipment logs that record performance problems, repairs, calibrations, or tests.
- Inspect components of industrial equipment for accurate assembly and installation or for defects, such as loose connections or frayed wires.
- Install repaired equipment in various settings, such as industrial or military establishments.
- Operate equipment to demonstrate proper use or to analyze malfunctions.
- Enter information into computer to copy program or to draw, modify, or store schematics, applying knowledge of software package used.
- Perform scheduled preventive maintenance tasks, such as checking, cleaning, or repairing equipment, to detect and prevent problems.
- Calibrate testing instruments and installed or repaired equipment to prescribed specifications.
- Repair or adjust equipment, machines, or defective components, replacing worn parts, such as gaskets or seals in watertight electrical equipment.
- Consult with customers, supervisors, or engineers to plan layout of equipment or to resolve problems in system operation or maintenance.
- Maintain inventory of spare parts.
- Study blueprints, schematics, manuals, or other specifications to determine installation procedures.
- Examine work orders and converse with equipment operators to detect equipment problems and to ascertain whether mechanical or human errors contributed to the problems.
- Coordinate efforts with other workers involved in installing or maintaining equipment or components.
- Develop or modify industrial electronic devices, circuits, or equipment, according to available specifications.
- Determine feasibility of using standardized equipment or develop specifications for equipment required to perform additional functions.
- Advise management regarding customer satisfaction, product performance, or suggestions for product improvements.
- Send defective units to the manufacturer or to a specialized repair shop for repair.
- Sign overhaul documents for equipment replaced or repaired.
- Set up and test industrial equipment to ensure that it functions properly.
- Test faulty equipment to diagnose malfunctions, using test equipment or software, and applying knowledge of the functional operation of electronic units and systems.
- Test, evaluate, and classify excess or in-use medical equipment and determine serviceability, condition, and disposition, in accordance with regulations.
- Test or calibrate components or equipment, following manufacturers' manuals and troubleshooting techniques, using hand tools, power tools, or measuring devices.
- Perform preventive maintenance or service, such as cleaning, lubricating, or adjusting equipment.
- Inspect, test, or troubleshoot malfunctioning medical or related equipment, following manufacturers' specifications and using test and analysis instruments.
- Keep records of maintenance, repair, and required updates of equipment.
- Disassemble malfunctioning equipment and remove, repair, or replace defective parts, such as motors, clutches, or transformers.
- Examine medical equipment or facility's structural environment and check for proper use of equipment to protect patients and staff from electrical or mechanical hazards and to ensure compliance with safety regulations.
- Install medical equipment.
- Plan and carry out work assignments, using blueprints, schematic drawings, technical manuals, wiring diagrams, or liquid or air flow sheets, following prescribed regulations, directives, or other instructions as required.
- Study technical manuals or attend training sessions provided by equipment manufacturers to maintain current knowledge.
- Explain or demonstrate correct operation or preventive maintenance of medical equipment to personnel.
- Research catalogs or repair part lists to locate sources for repair parts, requisitioning parts and recording their receipt.
- Repair shop equipment, metal furniture, or hospital equipment, including welding broken parts or replacing missing parts, or bring item into local shop for major repairs.
- Solder loose connections, using soldering iron.
- Compute power and space requirements for installing medical, dental, or related equipment and install units to manufacturers' specifications.
- Evaluate technical specifications to identify equipment or systems best suited for intended use and possible purchase, based on specifications, user needs, or technical requirements.
- Contribute expertise to develop medical maintenance standard operating procedures.
- Fabricate, dress down, or substitute parts or major new items to modify equipment to meet unique operational or research needs, working from job orders, sketches, modification orders, samples, or discussions with operating officials.
- Supervise or advise subordinate personnel.
- Make computations relating to load requirements of wiring or equipment, using algebraic expressions and standard formulas.
- Test, evaluate, and classify excess or in-use medical equipment and determine serviceability, condition, and disposition, in accordance with regulations.
- Test or calibrate components or equipment, following manufacturers' manuals and troubleshooting techniques, using hand tools, power tools, or measuring devices.
- Examine damaged vehicle to determine extent of structural, body, mechanical, electrical, or interior damage.
- Evaluate practicality of repair as opposed to payment of market value of vehicle before accident.
- Review repair cost estimates with automobile repair shop to secure agreement on cost of repairs.
- Prepare insurance forms to indicate repair cost estimates and recommendations.
- Estimate parts and labor to repair damage, using standard automotive labor and parts cost manuals and knowledge of automotive repair.
- Determine salvage value on total-loss vehicle.
- Arrange to have damage appraised by another appraiser to resolve disagreement with shop on repair cost.
- Examine damaged vehicle to determine extent of structural, body, mechanical, electrical, or interior damage.
- Test equipment performance, focus of lens system, diaphragm alignment, lens mounts, or film transport, using precision gauges.
- Adjust cameras, photographic mechanisms, or equipment such as range and view finders, shutters, light meters, or lens systems, using hand tools.
- Disassemble equipment to gain access to defect, using hand tools.
- Clean and lubricate cameras and polish camera lenses, using cleaning materials and work aids.
- Requisition parts or materials.
- Calibrate and verify accuracy of light meters, shutter diaphragm operation, or lens carriers, using timing instruments.
- Examine cameras, equipment, processed film, or laboratory reports to diagnose malfunction, using work aids and specifications.
- Read and interpret engineering drawings, diagrams, instructions, or specifications to determine needed repairs, fabrication method, and operation sequence.
- Measure parts to verify specified dimensions or settings, such as camera shutter speed or light meter reading accuracy, using measuring instruments.
- Fabricate or modify defective electronic, electrical, or mechanical components, using bench lathe, milling machine, shaper, grinder, or precision hand tools, according to specifications.
- Install electrical assemblies and wiring in aircraft camera housings and memory cards or film in cameras, following blueprints and using hand tools and soldering equipment.
- Assemble aircraft cameras, still or motion picture cameras, photographic equipment, or frames, using diagrams, blueprints, bench machines, hand tools, or power tools.
- Record test data and document fabrication techniques on reports.
- Lay out reference points and dimensions on parts or metal stock to be machined, using precision measuring instruments.
- Recommend design changes or upgrades of microfilming, film-developing, or photographic equipment.
- Test equipment performance, focus of lens system, diaphragm alignment, lens mounts, or film transport, using precision gauges.
- Inspect aircraft components to locate cracks, breaks, leaks, or other problems.
- Apply de-icing fluid to aircraft from baskets lifted by truck-mounted cranes.
- Change aircraft oil, coolant, or other fluids.
- Clean aircraft interiors by picking up waste, wiping down windows, or vacuuming.
- Climb ladders to reach aircraft surfaces to be cleaned.
- Complete forms describing tasks completed.
- De-grease aircraft exteriors.
- Empty aircraft lavatory systems or refill them with sanitizer fluid.
- Guide aircraft to designated areas using hand signals, batons, or other methods.
- Load baggage or cargo for crew or passengers.
- Mix cleaning compounds or solutions.
- Polish aircraft exteriors.
- Radio to flight dispatchers or other personnel to discuss incoming or outgoing aircraft.
- Refill aircraft potable water tanks.
- Refuel aircraft using hoses connected to fuel trucks.
- Remove exhaust stains from aircraft using cleaning fluids.
- Tow aircraft to gates or hangars using tugs, tractors, or other vehicles.
- Wash the aircraft exteriors using lifts, cranes, detergent, or other equipment.
- Inspect aircraft components to locate cracks, breaks, leaks, or other problems.
- Test machines to determine proper functioning.
- Fill machines with products, ingredients, money, and other supplies.
- Inspect machines and meters to determine causes of malfunctions and fix minor problems such as jammed bills or stuck products.
- Replace malfunctioning parts, such as worn magnetic heads on automatic teller machine (ATM) card readers.
- Maintain records of machine maintenance and repair.
- Clean and oil machine parts.
- Order parts needed for machine repairs.
- Adjust and repair coin, vending, or amusement machines and meters and replace defective mechanical and electrical parts, using hand tools, soldering irons, and diagrams.
- Record transaction information on forms or logs, and notify designated personnel of discrepancies.
- Keep records of merchandise distributed and money collected.
- Collect coins and bills from machines, prepare invoices, and settle accounts with concessionaires.
- Make service calls to maintain and repair machines.
- Adjust machine pressure gauges and thermostats.
- Prepare repair cost estimates.
- Disassemble and assemble machines, according to specifications and using hand and power tools.
- Contact other repair personnel or make arrangements for the removal of machines in cases where major repairs are required.
- Transport machines to installation sites.
- Refer to manuals and wiring diagrams to gather information needed to repair machines.
- Install machines, making the necessary water and electrical connections in compliance with codes.
- Test machines to determine proper functioning.
- Connect power unit to machines or steam piping to equipment, and test unit to evaluate its mechanical operation.
- Insert shims, adjust tension on nuts and bolts, or position parts, using hand tools and measuring instruments, to set specified clearances between moving and stationary parts.
- Level bedplate and establish centerline, using straightedge, levels, and transit.
- Align machines or equipment, using hoists, jacks, hand tools, squares, rules, micrometers, lasers, or plumb bobs.
- Assemble and install equipment, using hand tools and power tools.
- Signal crane operator to lower basic assembly units to bedplate, and align unit to centerline.
- Conduct preventative maintenance and repair, and lubricate machines and equipment.
- Replace defective parts of machine, or adjust clearances and alignment of moving parts.
- Attach moving parts and subassemblies to basic assembly unit, using hand tools and power tools.
- Assemble machines, and bolt, weld, rivet, or otherwise fasten them to foundation or other structures, using hand tools and power tools.
- Lay out mounting holes, using measuring instruments, and drill holes with power drill.
- Position steel beams to support bedplates of machines and equipment, using blueprints and schematic drawings to determine work procedures.
- Shrink-fit bushings, sleeves, rings, liners, gears, and wheels to specified items, using portable gas heating equipment.
- Move machinery and equipment, using hoists, dollies, rollers, and trucks.
- Dismantle machinery and equipment for shipment to installation site, performing installation and maintenance work as part of team.
- Weld, repair, and fabricate equipment or machinery.
- Dismantle machines, using hammers, wrenches, crowbars, and other hand tools.
- Fabricate and dismantle parts, equipment, and machines, using a cutting torch or other cutting equipment.
- Bolt parts, such as side and deck plates, jaw plates, and journals, to basic assembly unit.
- Construct foundation for machines, using hand tools and building materials such as wood, cement, and steel.
- Install robot and modify its program, using teach pendant.
- Troubleshoot equipment, electrical components, hydraulics, or other mechanical systems.
- Operate engine lathe to grind, file, and turn machine parts to dimensional specifications.
- Connect power unit to machines or steam piping to equipment, and test unit to evaluate its mechanical operation.
- Perform pre- and post-installation pressure, flow, and related tests of vertical and horizontal geothermal loop piping.
- Monitor and adjust operations of geothermal power plant equipment or systems.
- Prepare and maintain logs, reports, or other documentation of work performed.
- Identify and correct malfunctions of geothermal plant equipment, electrical systems, instrumentation, or controls.
- Collect and record data associated with operating geothermal power plants or well fields.
- Determine whether emergency or auxiliary systems will be needed to keep properties heated or cooled in extreme weather conditions.
- Identify equipment options, such as compressors, and make appropriate selections.
- Adjust power production systems to meet load and distribution demands.
- Maintain electrical switchgear, process controls, transmitters, gauges, and control equipment in accordance with geothermal plant procedures.
- Calculate heat loss and heat gain factors for residential properties to determine heating and cooling required by installed geothermal systems.
- Maintain, calibrate, or repair plant instrumentation, control, and electronic devices in geothermal plants.
- Install and maintain geothermal plant electrical protection equipment.
- Design and lay out geothermal heat systems according to property characteristics, heating and cooling requirements, piping and equipment requirements, applicable regulations, or other factors.
- Install and maintain geothermal system instrumentation or controls.
- Prepare newly installed geothermal heat systems for operation by flushing, purging, or other actions.
- Weld piping, such as high density polyethylene (HDPE) piping, using techniques such as butt, socket, side-wall, and electro-fusion welding.
- Test water sources for factors, such as flow volume and contaminant presence.
- Install, maintain, or repair ground or water source-coupled heat pumps to heat and cool residential or commercial building air or water.
- Integrate hot water heater systems with geothermal heat exchange systems.
- Determine the type of geothermal loop system most suitable to a specific property and its heating and cooling needs.
- Dig trenches for system piping to appropriate depths and lay piping in trenches.
- Apply coatings or operate systems to mitigate corrosion of geothermal plant equipment or structures.
- Backfill piping trenches to protect pipes from damage.
- Operate equipment, such as excavators, backhoes, rock hammers, trench compactors, pavement saws, grout mixers or pumps, geothermal loop reels, and coil tubing units (CTU).
- Perform pre- and post-installation pressure, flow, and related tests of vertical and horizontal geothermal loop piping.
- Cover treadles with carpeting or other floor covering materials, and test systems by operating treadles.
- Wind large springs with upward motion of arm.
- Adjust doors to open or close with the correct amount of effort, or make simple adjustments to electric openers.
- Carry springs to tops of doors, using ladders or scaffolding, and attach springs to tracks to install spring systems.
- Repair or replace worn or broken door parts, using hand tools.
- Complete required paperwork, such as work orders, according to services performed or required.
- Fasten angle iron back-hangers to ceilings and tracks, using fasteners or welding equipment.
- Collect payment upon job completion.
- Install door frames, rails, steel rolling curtains, electronic-eye mechanisms, or electric door openers and closers, using power tools, hand tools, and electronic test equipment.
- Inspect job sites, assessing headroom, side room, or other conditions to determine appropriateness of door for a given location.
- Assemble and fasten tracks to structures or bucks, using impact wrenches or welding equipment.
- Set doors into place or stack hardware sections into openings after rail or track installation.
- Operate lifts, winches, or chain falls to move heavy curtain doors.
- Remove or disassemble defective automatic mechanical door closers, using hand tools.
- Fabricate replacements for worn or broken parts, using welders, lathes, drill presses, or shaping or milling machines.
- Prepare doors for hardware installation, such as drilling holes to install locks.
- Run low voltage wiring on ceiling surfaces, using insulated staples.
- Cut door stops or angle irons to fit openings.
- Study blueprints and schematic diagrams to determine appropriate methods of installing or repairing automated door openers.
- Install dock seals, bumpers, or shelters.
- Order replacement springs, sections, or slats.
- Lubricate door closer oil chambers, and pack spindles with leather washers.
- Set in and secure floor treadles for door-activating mechanisms, and connect power packs and electrical panelboards to treadles.
- Bore or cut holes in flooring as required for installation, using hand or power tools.
- Clean door closer parts, using caustic soda, rotary brushes, or grinding wheels.
- Cover treadles with carpeting or other floor covering materials, and test systems by operating treadles.
- Test valves and regulators for leaks and accurate temperature and pressure settings, using precision testing equipment.
- Record maintenance information, including test results, material usage, and repairs made.
- Disassemble and repair mechanical control devices or valves, such as regulators, thermostats, or hydrants, using power tools, hand tools, and cutting torches.
- Lubricate wearing surfaces of mechanical parts, using oils or other lubricants.
- Calibrate instrumentation, such as meters, gauges, and regulators, for pressure, temperature, flow, and level.
- Install, inspect and test electric meters, relays, and power sources to detect causes of malfunctions and inaccuracies, using hand tools and testing equipment.
- Record meter readings and installation data on meter cards, work orders, or field service orders, or enter data into hand-held computers.
- Turn meters on or off to establish or close service.
- Shut off service and notify repair crews when major repairs are required, such as the replacement of underground pipes or wiring.
- Install regulators and related equipment such as gas meters, odorization units, and gas pressure telemetering equipment.
- Cut seats to receive new orifices, tap inspection ports, and perform other repairs to salvage usable materials, using hand tools and machine tools.
- Turn valves to allow measured amounts of air or gas to pass through meters at specified flow rates.
- Report hazardous field situations and damaged or missing meters.
- Vary air pressure flowing into regulators and turn handles to assess functioning of valves and pistons.
- Examine valves or mechanical control device parts for defects, dents, or loose attachments, and mark malfunctioning areas of defective units.
- Mount and install meters and other electric equipment such as time clocks, transformers, and circuit breakers, using electricians' hand tools.
- Connect regulators to test stands, and turn screw adjustments until gauges indicate that inlet and outlet pressures meet specifications.
- Investigate instances of illegal tapping into service lines.
- Trace and tag meters or house lines.
- Repair electric meters and components, such as transformers and relays, and replace metering devices, dial glasses, and faulty or incorrect wiring, using hand tools.
- Replace defective parts, such as bellows, range springs, and toggle switches, and reassemble units according to blueprints, using cam presses and hand tools.
- Recondition displacement type gas meters and governors, fabricating, machining, or modifying parts needed for repairs.
- Measure tolerances of assembled and salvageable parts for conformance to standards or specifications, using gauges, micrometers, and calipers.
- 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.
- Disconnect or remove defective or unauthorized meters, using hand tools.
- Reassemble repaired equipment, and solder top, front, and back case panels in place, using soldering guns, power tools, and hand tools.
- Attach air hoses to meter inlets, plug outlets, and observe gauges for pressure losses to test internal seams for leaks.
- Make adjustments to meter components, such as setscrews or timing mechanisms, so that they conform to specifications.
- Recommend and write up specifications for changes in hardware, such as house wiring.
- Clamp regulator units into vises on stages above water tanks, and attach compressed air hoses to intake ports.
- Repair leaks in valve seats or bellows of automotive heater thermostats, using soft solder, flux, and acetylene torches.
- Collect money due on delinquent accounts.
- Splice and connect cables from meters or current transformers to pull boxes or switchboards, using hand tools.
- Attach pressurized meters to fixtures which submerge them in water, and observe meters for leaks.
- Advise customers on proper installation of valves or regulators and related equipment.
- Calibrate thermostats for specified temperature or pressure settings.
- Clean plant growth, scale, paint, soil, or rust from meter housings, using wire brushes, scrapers, buffers, sandblasters, or cleaning compounds.
- Connect hoses from provers to meter inlets and outlets, and raise prover bells until prover gauges register zero.
- Test valves and regulators for leaks and accurate temperature and pressure settings, using precision testing equipment.
