- Locate underground services, such as pipes or wires, prior to beginning work.
Occupations with related tasks Save Table: XLSX CSV
- Locate malfunctions in brakes, motors, switches, and signal and control systems, using test equipment.
- Inspect wiring connections, control panel hookups, door installations, and alignments and clearances of cars and hoistways to ensure that equipment will operate properly.
- Test newly installed equipment to ensure that it meets specifications, such as stopping at floors for set amounts of time.
- Operate elevators to determine power demands, and test power consumption to detect overload factors.
- Assemble, install, repair, and maintain elevators, escalators, moving sidewalks, and dumbwaiters, using hand and power tools, and testing devices such as test lamps, ammeters, and voltmeters.
- Disassemble defective units, and repair or replace parts such as locks, gears, cables, and electric wiring.
- Check that safety regulations and building codes are met, and complete service reports verifying conformance to standards.
- Adjust safety controls, counterweights, door mechanisms, and components such as valves, ratchets, seals, and brake linings.
- Read and interpret blueprints to determine the layout of system components, frameworks, and foundations, and to select installation equipment.
- Connect car frames to counterweights, using steel cables.
- Maintain log books that detail all repairs and checks performed.
- Connect electrical wiring to control panels and electric motors.
- Participate in additional training to keep skills up to date.
- Install electrical wires and controls by attaching conduit along shaft walls from floor to floor and pulling plastic-covered wires through the conduit.
- Attach guide shoes and rollers to minimize the lateral motion of cars as they travel through shafts.
- Install outer doors and door frames at elevator entrances on each floor of a structure.
- Assemble elevator cars, installing each car's platform, walls, and doors.
- Bolt or weld steel rails to the walls of shafts to guide elevators, working from scaffolding or platforms.
- Assemble electrically powered stairs, steel frameworks, and tracks, and install associated motors and electrical wiring.
- Cut prefabricated sections of framework, rails, and other components to specified dimensions.
- Locate malfunctions in brakes, motors, switches, and signal and control systems, using test equipment.
- Inspect wiring connections, control panel hookups, door installations, and alignments and clearances of cars and hoistways to ensure that equipment will operate properly.
- Test newly installed equipment to ensure that it meets specifications, such as stopping at floors for set amounts of time.
- Operate elevators to determine power demands, and test power consumption to detect overload factors.
- Locate problems, using specially designed equipment, and mark where digging must occur to reach damaged tanks or pipes.
- Inspect manholes to locate sewer line stoppages.
- Withdraw cables from pipes and examine them for evidence of mud, roots, grease, and other deposits indicating broken or clogged sewer lines.
- Communicate with supervisors and other workers, using equipment such as wireless phones, pagers, or radio telephones.
- Drive trucks to transport crews, materials, and equipment.
- Operate sewer cleaning equipment, including power rodders, high-velocity water jets, sewer flushers, bucket machines, wayne balls, and vac-alls.
- Prepare and keep records of actions taken, including maintenance and repair work.
- Clean and repair septic tanks, sewer lines, or related structures such as manholes, culverts, and catch basins.
- Measure excavation sites, using plumbers' snakes, tapelines, or lengths of cutting heads within sewers, and mark areas for digging.
- Service, adjust, and make minor repairs to equipment, machines, and attachments.
- Dig out sewer lines manually, using shovels.
- Clean and disinfect domestic basements and other areas flooded by sewer stoppages.
- Ensure that repaired sewer line joints are tightly sealed before backfilling begins.
- Rotate cleaning rods manually, using turning pins.
- Install rotary knives on flexible cables mounted on machine reels, according to the diameters of pipes to be cleaned.
- Start machines to feed revolving cables or rods into openings, stopping machines and changing knives to conform to pipe sizes.
- Update sewer maps and manhole charts.
- Cover repaired pipes with dirt, and pack backfilled excavations, using air and gasoline tampers.
- Cut damaged sections of pipe with cutters, remove broken sections from ditches, and replace pipe sections, using pipe sleeves.
- Requisition or order tools and equipment.
- Break asphalt and other pavement so that pipes can be accessed, using airhammers, picks, and shovels.
- Tap mainline sewers to install sewer saddles.
- Locate problems, using specially designed equipment, and mark where digging must occur to reach damaged tanks or pipes.
- Inspect manholes to locate sewer line stoppages.
- Withdraw cables from pipes and examine them for evidence of mud, roots, grease, and other deposits indicating broken or clogged sewer lines.
- Locate existing pipes needing repair or replacement, using magnetic or radio indicators.
- Install or use instruments such as lasers, grade rods, or transit levels.
- Cut pipes to required lengths.
- Connect pipe pieces and seal joints, using welding equipment, cement, or glue.
- Cover pipes with earth or other materials.
- Install or repair sanitary or stormwater sewer structures or pipe systems.
- Align and position pipes to prepare them for welding or sealing.
- Check slopes for conformance to requirements, using levels or lasers.
- Lay out pipe routes, following written instructions or blueprints and coordinating layouts with supervisors.
- Operate mechanized equipment, such as pickup trucks, rollers, tandem dump trucks, front-end loaders, or backhoes.
- Grade or level trench bases, using tamping machines or hand tools.
- Dig trenches to desired or required depths, by hand or using trenching tools.
- Tap and drill holes into pipes to introduce auxiliary lines or devices.
- Train or supervise others in laying pipe.
- Locate existing pipes needing repair or replacement, using magnetic or radio indicators.
- Walk flow lines to locate leaks, using electronic detectors and by making visual inspections, and repair the leaks.
- Unscrew or tighten pipes, casing, tubing, and pump rods, using hand and power wrenches and tongs.
- Dismantle and repair oil field machinery, boilers, and steam engine parts, using hand tools and power tools.
- Guide cranes to move loads about decks.
- Lay gas and oil pipelines.
- Bolt together pump and engine parts.
- Move pipes to and from trucks, using truck winches and motorized lifts, or by hand.
- Clean trucks used in the fields.
- Bolt or nail together wood or steel framework to erect derricks.
- Dig holes, set forms, and mix and pour concrete into forms to make foundations for wood or steel derricks.
- Supply equipment to rig floors as requested and provide assistance to roughnecks.
- Clean up spilled oil by bailing it into barrels.
- Keep pipe deck and main deck areas clean and tidy.
- Dig drainage ditches around wells and storage tanks.
- Cut down and remove trees and brush to clear drill sites, to reduce fire hazards, and to make way for roads to sites.
- Walk flow lines to locate leaks, using electronic detectors and by making visual inspections, and repair the leaks.
- Locate worn or torn areas in roofs.
- Check to ensure that completed roofs are watertight.
- Sweep and clean roofs to prepare them for the application of new roofing materials.
- Clean work areas and equipment.
- Maintain tools and equipment.
- Cover roofs with layers of roofing felt or asphalt strips before installing tile, slate, or composition materials.
- Remove old roofing materials.
- Unload materials and tools from work trucks, and unroll roofing as directed.
- Set ladders, scaffolds, and hoists in place for taking supplies to roofs.
- Place tiles, nail them to roof boards, and cover nailheads with roofing cement.
- Provide assistance to skilled roofers installing and repairing roofs, flashings, and surfaces.
- Attach roofing paper and composition shingles, using nails.
- Perform emergency leak repairs and general maintenance for a variety of roof types.
- Attach sheets of metal to roof boards or building frameworks when installing metal roofs.
- Hoist tar and roofing materials to roofs, using ropes and pulleys, or carry materials up ladders.
- Apply shingles, gravel, or asphalt over the top layer of tar to protect the roofing material.
- Chop tar into small pieces, and heat chopped tar in kettles.
- Clear drains and downspouts and clean gutters.
- Locate worn or torn areas in roofs.
- Patrol assigned track sections so that damaged or broken track can be located and reported.
- Repair or adjust track switches, using wrenches and replacement parts.
- Weld sections of track together, such as switch points and frogs.
- Observe leveling indicator arms to verify levelness and alignment of tracks.
- Operate single- or multiple-head spike driving machines to drive spikes into ties and secure rails.
- Operate track wrenches to tighten or loosen bolts at joints that hold ends of rails together.
- Cut rails to specified lengths, using rail saws.
- Lubricate machines, change oil, or fill hydraulic reservoirs to specified levels.
- Drill holes through rails, tie plates, or fishplates for insertion of bolts or spikes, using power drills.
- Clean tracks or clear ice or snow from tracks or switch boxes.
- Clean, grade, or level ballast on railroad tracks.
- Raise rails, using hydraulic jacks, to allow for tie removal and replacement.
- Adjust controls of machines that spread, shape, raise, level, or align track, according to specifications.
- Dress and reshape worn or damaged railroad switch points or frogs, using portable power grinders.
- Clean or make minor repairs to machines or equipment.
- Grind ends of new or worn rails to attain smooth joints, using portable grinders.
- Operate single- or multiple-head spike pullers to pull old spikes from ties.
- String and attach wire-guidelines machine to rails so that tracks or rails can be aligned or leveled.
- Engage mechanisms that lay tracks or rails to specified gauges.
- Drive graders, tamping machines, brooms, or ballast spreading machines to redistribute gravel or ballast between rails.
- Drive vehicles that automatically move and lay tracks or rails over sections of track to be constructed, repaired, or maintained.
- Turn wheels of machines, using lever controls, to adjust guidelines for track alignments or grades, following specifications.
- Push controls to close grasping devices on track or rail sections so that they can be raised or moved.
- Operate tie-adzing machines to cut ties and permit insertion of fishplates that hold rails.
- Paint railroad signs, such as speed limits or gate-crossing warnings.
- Spray ties, fishplates, or joints with oil to protect them from weathering.
- Patrol assigned track sections so that damaged or broken track can be located and reported.
