Job Duties Custom List 47-2031.00 — Carpenters
- Install structures or fixtures, such as windows, frames, floorings, trim, or hardware, using carpenters' hand or power tools.
Occupations with related tasks Save Table: XLSX CSV
- Install pre-assembled metal or wood frameworks for windows or doors to be fitted with glass panels, using hand tools.
- Set glass doors into frames and bolt metal hinges, handles, locks, or other hardware to attach doors to frames and walls.
- Cut and attach mounting strips, metal or wood moldings, rubber gaskets, or metal clips to surfaces in preparation for mirror installation.
- Secure mirrors in position, using mastic cement, putty, bolts, or screws.
- Fasten glass panes into wood sashes or frames with clips, points, or moldings, adding weather seals or putty around pane edges to seal joints.
- Cut, assemble, fit, or attach metal-framed glass enclosures for showers, bathtubs, display cases, skylights, solariums, or other structures.
- Fabricate or install metal sashes or moldings for glass installation, using aluminum or steel framing.
- Assemble, erect, or dismantle scaffolds, rigging, or hoisting equipment.
- Read and interpret blueprints or specifications to determine size, shape, color, type, or thickness of glass, location of framing, installation procedures, or staging or scaffolding materials required.
- Determine plumb of walls or ceilings, using plumb lines and levels.
- Operate cranes or hoists with suction cups to lift large, heavy pieces of glass.
- Cut, fit, install, repair, or replace glass or glass substitutes, such as plastic or aluminum, in building interiors or exteriors or in furniture or other products.
- Drive trucks to installation sites and unload mirrors, glass equipment, or tools.
- Load and arrange glass or mirrors onto delivery trucks, using suction cups or cranes to lift glass.
- Measure mirrors and dimensions of areas to be covered to determine work procedures.
- Pack spaces between moldings and glass with glazing compounds and trim excess material with glazing knives.
- Cut and remove broken glass prior to installing replacement glass.
- Measure and mark outlines or patterns on glass to indicate cutting lines.
- Grind or polish glass, smoothing edges when necessary.
- Score glass with cutters' wheels, breaking off excess glass by hand or with notched tools.
- Prepare glass for cutting by resting it on rack edges or against cutting tables and brushing thin layer of oil along cutting lines or dipping cutting tools in oil.
- Move furniture to clear work sites and cover floors or furnishings with drop cloths.
- Confer with customers to determine project requirements or to provide cost estimates.
- Select the type or color of glass or mirror according to specifications.
- Measure, cut, fit, and press anti-glare adhesive film to glass or spray glass with tinting solution to prevent light glare.
- Assemble and cement sections of stained glass together.
- Create patterns on glass by etching, sandblasting, or painting designs.
- Install pre-assembled metal or wood frameworks for windows or doors to be fitted with glass panels, using hand tools.
- Set glass doors into frames and bolt metal hinges, handles, locks, or other hardware to attach doors to frames and walls.
- Cut and attach mounting strips, metal or wood moldings, rubber gaskets, or metal clips to surfaces in preparation for mirror installation.
- Secure mirrors in position, using mastic cement, putty, bolts, or screws.
- Fasten glass panes into wood sashes or frames with clips, points, or moldings, adding weather seals or putty around pane edges to seal joints.
- Cut, assemble, fit, or attach metal-framed glass enclosures for showers, bathtubs, display cases, skylights, solariums, or other structures.
- Fabricate or install metal sashes or moldings for glass installation, using aluminum or steel framing.
- Assemble, erect, or dismantle scaffolds, rigging, or hoisting equipment.
- Fit and fasten wallboard or drywall into position on wood or metal frameworks, using glue, nails, or screws.
- Hang drywall panels on metal frameworks of walls and ceilings in offices, schools, or other large buildings, using lifts or hoists to adjust panel heights, when necessary.
- Suspend angle iron grids or channel irons from ceilings, using wire.
- Install horizontal and vertical metal or wooden studs to frames so that wallboard can be attached to interior walls.
- Assemble or install metal framing or decorative trim for windows, doorways, or vents.
- Cut fixture or border tiles to size, using keyhole saws, and insert them into surrounding frameworks.
- Cut and screw together metal channels to make floor or ceiling frames, according to plans for the location of rooms or hallways.
- Fasten metal or rockboard lath to the structural framework of walls, ceilings, or partitions of buildings, using nails, screws, staples, or wire-ties.
- Install blanket insulation between studs and tack plastic moisture barriers over insulation.
- Apply or mount acoustical tile or blocks, strips, or sheets of shock-absorbing materials to ceilings or walls of buildings to reduce reflection of sound or to decorate rooms.
- Mount tile, using adhesives, or by nailing, screwing, stapling, or wire-tying lath directly to structural frameworks.
- Nail channels or wood furring strips to surfaces to provide mounting for tile.
- Install metal lath where plaster applications will be exposed to weather or water, or for curved or irregular surfaces.
- Apply cement to backs of tiles and press tiles into place, aligning them with layout marks or joints of previously laid tile.
- Read blueprints or other specifications to determine methods of installation, work procedures, or material or tool requirements.
- Measure and mark surfaces to lay out work, according to blueprints or drawings, using tape measures, straightedges or squares, and marking devices.
- Measure and cut openings in panels or tiles for electrical outlets, windows, vents, plumbing, or other fixtures, using keyhole saws or other cutting tools.
- Cut metal or wood framing and trim to size, using cutting tools.
- Inspect furrings, mechanical mountings, or masonry surfaces for plumbness and level, using spirit or water levels.
- Trim rough edges from wallboard to maintain even joints, using knives.
- Coordinate work with drywall finishers who cover the seams between drywall panels.
- Scribe and cut edges of tile to fit walls where wall molding is not specified.
- Hang dry lines to wall moldings to guide positioning of main runners.
- Seal joints between ceiling tiles and walls.
- Remove existing plaster, drywall, or paneling, using crowbars and hammers.
- Wash concrete surfaces before mounting tile to increase adhesive qualities of surfaces, using washing soda and zinc sulfate solution.
- Fit and fasten wallboard or drywall into position on wood or metal frameworks, using glue, nails, or screws.
- Hang drywall panels on metal frameworks of walls and ceilings in offices, schools, or other large buildings, using lifts or hoists to adjust panel heights, when necessary.
- Suspend angle iron grids or channel irons from ceilings, using wire.
- Install horizontal and vertical metal or wooden studs to frames so that wallboard can be attached to interior walls.
- Assemble or install metal framing or decorative trim for windows, doorways, or vents.
- Cut fixture or border tiles to size, using keyhole saws, and insert them into surrounding frameworks.
- Cut and screw together metal channels to make floor or ceiling frames, according to plans for the location of rooms or hallways.
- Fasten metal or rockboard lath to the structural framework of walls, ceilings, or partitions of buildings, using nails, screws, staples, or wire-ties.
- Install blanket insulation between studs and tack plastic moisture barriers over insulation.
- Apply or mount acoustical tile or blocks, strips, or sheets of shock-absorbing materials to ceilings or walls of buildings to reduce reflection of sound or to decorate rooms.
- Mount tile, using adhesives, or by nailing, screwing, stapling, or wire-tying lath directly to structural frameworks.
- Nail channels or wood furring strips to surfaces to provide mounting for tile.
- Install metal lath where plaster applications will be exposed to weather or water, or for curved or irregular surfaces.
- Apply cement to backs of tiles and press tiles into place, aligning them with layout marks or joints of previously laid tile.
- Attach fence rail supports to posts, using hammers and pliers.
- Nail top and bottom rails to fence posts, or insert them in slots on posts.
- Nail pointed slats to rails to construct picket fences.
- Attach rails or tension wire along bottoms of posts to form fencing frames.
- Assemble gates, and fasten gates into position, using hand tools.
- Stretch wire, wire mesh, or chain link fencing between posts, and attach fencing to frames.
- Complete top fence rails of metal fences by connecting tube sections, using metal sleeves.
- Erect alternate panel, basket weave, and louvered fences.
- Insert metal tubing through rail supports.
- Construct and repair barriers, retaining walls, trellises, and other types of fences, walls, and gates.
- Establish the location for a fence, and gather information needed to ensure that there are no electric cables or water lines in the area.
- Set metal or wooden posts in upright positions in postholes.
- Measure and lay out fence lines and mark posthole positions, following instructions, drawings, or specifications.
- Align posts, by lines or sighting, and verify vertical alignment of posts, using plumb bobs or spirit levels.
- Dig postholes, using spades, posthole diggers, or power-driven augers.
- Mix and pour concrete around bases of posts, or tamp soil into postholes to embed posts.
- Make rails for fences, by sawing lumber or by cutting metal tubing to required lengths.
- Discuss fencing needs with customers, and estimate and quote prices.
- Weld metal parts together, using portable gas welding equipment.
- Blast rock formations and rocky areas with dynamite to facilitate posthole digging.
- Attach fence rail supports to posts, using hammers and pliers.
- Nail top and bottom rails to fence posts, or insert them in slots on posts.
- Nail pointed slats to rails to construct picket fences.
- Attach rails or tension wire along bottoms of posts to form fencing frames.
- Assemble gates, and fasten gates into position, using hand tools.
- Stretch wire, wire mesh, or chain link fencing between posts, and attach fencing to frames.
- Complete top fence rails of metal fences by connecting tube sections, using metal sleeves.
- Erect alternate panel, basket weave, and louvered fences.
- Insert metal tubing through rail supports.
- Construct and repair barriers, retaining walls, trellises, and other types of fences, walls, and gates.
- Make minor repairs using basic hand or power tools and materials, such as glass, lumber, and drywall.
- Install storm windows or storm doors and verify proper fit.
- Install and seal air ducts, combustion air openings, or ventilation openings to improve heating and cooling efficiency.
- Apply insulation materials, such as loose, blanket, board, and foam insulation to attics, crawl spaces, basements, or walls.
- Wrap air ducts and water lines with insulating materials, such as duct wrap and pipe insulation.
- Prepare and apply weather-stripping, glazing, caulking, or door sweeps to reduce energy losses.
- Wrap water heaters with water heater blankets.
- Test combustible appliances, such as gas appliances.
- Determine amount of air leakage in buildings, using a blower door machine.
- Test and diagnose air flow systems, using furnace efficiency analysis equipment.
- Inspect buildings to identify required weatherization measures, including repair work, modification, or replacement.
- Recommend weatherization techniques to clients in accordance with needs and applicable energy regulations, codes, policies, or statutes.
- Prepare cost estimates or specifications for rehabilitation or weatherization services.
- Contact residents or building owners to schedule appointments.
- Clean and maintain tools and equipment.
- Apply spackling, compounding, or other materials to repair holes in walls.
- Explain recommendations, policies, procedures, requirements, or other related information to residents or building owners.
- Maintain activity logs, financial transaction logs, or other records of weatherization work performed.
- Explain energy conservation measures, such as the use of low flow showerheads and energy-efficient lighting.
- Prepare or assist in the preparation of bids, contracts, or written reports related to weatherization work.
- Make minor repairs using basic hand or power tools and materials, such as glass, lumber, and drywall.
- Install storm windows or storm doors and verify proper fit.
- Install and seal air ducts, combustion air openings, or ventilation openings to improve heating and cooling efficiency.
- Apply insulation materials, such as loose, blanket, board, and foam insulation to attics, crawl spaces, basements, or walls.
- Wrap air ducts and water lines with insulating materials, such as duct wrap and pipe insulation.
- Prepare and apply weather-stripping, glazing, caulking, or door sweeps to reduce energy losses.
- Wrap water heaters with water heater blankets.
- Fasten timbers or lumber with glue, screws, pegs, or nails and install hardware.
- Install handrails under the direction of a carpenter.
- Erect scaffolding, shoring, or braces.
- Cut and install insulating or sound-absorbing material.
- Clean work areas, machines, or equipment, to maintain a clean and safe job site.
- Perform tie spacing layout and measure, mark, drill or cut.
- Select tools, equipment, or materials from storage and transport items to work site.
- Drill holes in timbers or lumber.
- Cut timbers, lumber, or paneling to specified dimensions.
- Position and hold timbers, lumber, or paneling in place for fastening or cutting.
- Align, straighten, plumb, or square forms for installation.
- Hold plumb bobs, sighting rods, or other equipment to aid in establishing reference points and lines.
- Construct forms and assist in raising them to the required elevation.
- Glue and clamp edges or joints of assembled parts.
- Smooth or sand surfaces to remove ridges, tool marks, glue, or caulking.
- Secure stakes to grids for constructions of footings, nail scabs to footing forms, and vibrate and float concrete.
- Cut tile or linoleum to fit and spread adhesives on flooring for installation.
- Cover surfaces with laminated plastic covering material.
- Fasten timbers or lumber with glue, screws, pegs, or nails and install hardware.
- Install handrails under the direction of a carpenter.
- Erect scaffolding, shoring, or braces.
- Cut and install insulating or sound-absorbing material.
- Install skylights on roofs to increase natural light inside structures or to reduce energy costs.
- Set up scaffolding to provide safe access to roofs.
- Cement or nail flashing strips of metal or shingle over joints to make them watertight.
- Install partially overlapping layers of material over roof insulation surfaces, using chalk lines, gauges on shingling hatchets, or lines on shingles.
- Apply plastic coatings, membranes, fiberglass, or felt over sloped roofs before applying shingles.
- Install, repair, or replace single-ply roofing systems, using waterproof sheet materials such as modified plastics, elastomeric, or other asphaltic compositions.
- Attach roofing paper to roofs in overlapping strips to form bases for other materials.
- Cover roofs or exterior walls of structures with slate, asphalt, aluminum, wood, gravel, gypsum, or related materials, using brushes, knives, punches, hammers, or other tools.
- Apply reflective roof coatings, such as special paints or single-ply roofing sheets, to existing roofs to reduce solar heat absorption.
- Apply alternate layers of hot asphalt or tar and roofing paper to roofs.
- Install vapor barriers or layers of insulation on flat roofs.
- Install attic ventilation systems, such as turbine vents, gable or ridge vents, or conventional or solar-powered exhaust fans.
- Apply gravel or pebbles over top layers of roofs, using rakes or stiff-bristled brooms.
- Apply modular soil- and plant-containing grids over existing roof membranes to create green roofs.
- Install layers of vegetation-based green roofs, including protective membranes, drainage, aeration, water retention and filter layers, soil substrates, irrigation materials, and plants.
- Inspect problem roofs to determine the best repair procedures.
- Remove snow, water, or debris from roofs prior to applying roofing materials.
- Estimate materials and labor required to complete roofing jobs.
- Cut felt, shingles, or strips of flashing to fit angles formed by walls, vents, or intersecting roof surfaces.
- Waterproof or damp-proof walls, floors, roofs, foundations, or basements by painting or spraying surfaces with waterproof coatings or by attaching waterproofing membranes to surfaces.
- Cover exposed nailheads with roofing cement or caulking to prevent water leakage or rust.
- Smooth rough spots to prepare surfaces for waterproofing, using hammers, chisels, or rubbing bricks.
- Glaze top layers to make a smooth finish or embed gravel in the bitumen for rough surfaces.
- Mop or pour hot asphalt or tar onto roof bases.
- Spray roofs, sidings, or walls to bind, seal, insulate, or soundproof sections of structures, using spray guns, air compressors, or heaters.
- Attach solar panels to existing roofs, according to specifications and without damaging roofing materials or the structural integrity of buildings.
- Punch holes in slate, tile, terra cotta, or wooden shingles, using punches and hammers.
- Install skylights on roofs to increase natural light inside structures or to reduce energy costs.
- Set up scaffolding to provide safe access to roofs.
- Cement or nail flashing strips of metal or shingle over joints to make them watertight.
- Install partially overlapping layers of material over roof insulation surfaces, using chalk lines, gauges on shingling hatchets, or lines on shingles.
- Apply plastic coatings, membranes, fiberglass, or felt over sloped roofs before applying shingles.
- Install, repair, or replace single-ply roofing systems, using waterproof sheet materials such as modified plastics, elastomeric, or other asphaltic compositions.
- Attach roofing paper to roofs in overlapping strips to form bases for other materials.
- Cover roofs or exterior walls of structures with slate, asphalt, aluminum, wood, gravel, gypsum, or related materials, using brushes, knives, punches, hammers, or other tools.
- Apply reflective roof coatings, such as special paints or single-ply roofing sheets, to existing roofs to reduce solar heat absorption.
- Apply alternate layers of hot asphalt or tar and roofing paper to roofs.
- Install vapor barriers or layers of insulation on flat roofs.
- Install attic ventilation systems, such as turbine vents, gable or ridge vents, or conventional or solar-powered exhaust fans.
- Apply gravel or pebbles over top layers of roofs, using rakes or stiff-bristled brooms.
- Apply modular soil- and plant-containing grids over existing roof membranes to create green roofs.
- Install layers of vegetation-based green roofs, including protective membranes, drainage, aeration, water retention and filter layers, soil substrates, irrigation materials, and plants.
- Install and anchor fixtures in designated positions, using hand tools.
- Finish and dress the joints and wipe excess grout from between tiles, using damp sponge.
- Lay and set mosaic tiles to create decorative wall, mural, and floor designs.
- Cut, surface, polish, and install marble and granite or install pre-cast terrazzo, granite or marble units.
- Build underbeds and install anchor bolts, wires, and brackets.
- Align and straighten tile using levels, squares, and straightedges.
- Cut and shape tile to fit around obstacles and into odd spaces and corners, using hand and power cutting tools.
- Determine and implement the best layout to achieve a desired pattern.
- Mix, apply, and spread plaster, concrete, mortar, cement, mastic, glue or other adhesives to form a bed for the tiles, using brush, trowel and screed.
- Study blueprints and examine surface to be covered to determine amount of material needed.
- Measure and mark surfaces to be tiled, following blueprints.
- Apply mortar to tile back, position the tile, and press or tap with trowel handle to affix tile to base.
- Mix and apply mortar or cement to edges and ends of drain tiles to seal halves and joints.
- Apply a sealer to make grout stain- and water-resistant.
- Level concrete and allow to dry.
- Measure and cut metal lath to size for walls and ceilings, using tin snips.
- Prepare surfaces for tiling by attaching lath or waterproof paper, or by applying a cement mortar coat to a metal screen.
- Remove and replace cracked or damaged tile.
- Cut tile backing to required size, using shears.
- Remove any old tile, grout and adhesive using chisels and scrapers and clean the surface carefully.
- Spread mastic or other adhesive base on roof deck to form base for promenade tile, using serrated spreader.
- Assist customers in selection of tile and grout.
- Prepare cost and labor estimates, based on calculations of time and materials needed for project.
- Brush glue onto manila paper on which design has been drawn and position tiles, finished side down, onto paper.
- Select and order tile and other items to be installed, such as bathroom accessories, walls, panels, and cabinets, according to specifications.
- Install and anchor fixtures in designated positions, using hand tools.
- Finish and dress the joints and wipe excess grout from between tiles, using damp sponge.
- Lay and set mosaic tiles to create decorative wall, mural, and floor designs.
- Cut, surface, polish, and install marble and granite or install pre-cast terrazzo, granite or marble units.
- Build underbeds and install anchor bolts, wires, and brackets.
- Install anchor bolts, steel plates, door sills and other fixtures in freshly poured concrete or pattern or stamp the surface to provide a decorative finish.
- Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
- Fabricate concrete beams, columns, and panels.
- Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base.
- Check the forms that hold the concrete to see that they are properly constructed.
- Set the forms that hold concrete to the desired pitch and depth, and align them.
- Spread, level, and smooth concrete, using rake, shovel, hand or power trowel, hand or power screed, and float.
- Monitor how the wind, heat, or cold affect the curing of the concrete throughout the entire process.
- Mold expansion joints and edges, using edging tools, jointers, and straightedge.
- Signal truck driver to position truck to facilitate pouring concrete, and move chute to direct concrete on forms.
- Direct the casting of the concrete and supervise laborers who use shovels or special tools to spread it.
- Produce rough concrete surface, using broom.
- Apply hardening and sealing compounds to cure surface of concrete, and waterproof or restore surface.
- Operate power vibrator to compact concrete.
- Waterproof or restore concrete surfaces, using appropriate compounds.
- Mix cement, sand, and water to produce concrete, grout, or slurry, using hoe, trowel, tamper, scraper, or concrete-mixing machine.
- Chip, scrape, and grind high spots, ridges, and rough projections to finish concrete, using pneumatic chisels, power grinders, or hand tools.
- Cut out damaged areas, drill holes for reinforcing rods, and position reinforcing rods to repair concrete, using power saw and drill.
- Wet concrete surface, and rub with stone to smooth surface and obtain specified finish.
- Clean chipped area, using wire brush, and feel and observe surface to determine if it is rough or uneven.
- Build wooden molds, and clamp molds around area to be repaired, using hand tools.
- Sprinkle colored marble or stone chips, powdered steel, or coloring powder over surface to produce prescribed finish.
- Polish surface, using polishing or surfacing machine.
- Cut metal division strips, and press them into terrazzo base so that top edges form desired design or pattern.
- Push roller over surface to embed chips in surface.
- Apply muriatic acid to clean surface, and rinse with water.
- Install anchor bolts, steel plates, door sills and other fixtures in freshly poured concrete or pattern or stamp the surface to provide a decorative finish.
- Wet surface to prepare for bonding, fill holes and cracks with grout or slurry, and smooth, using trowel.
- Fabricate concrete beams, columns, and panels.
- Spread roofing paper on surface of foundation, and spread concrete onto roofing paper with trowel to form terrazzo base.
- Install assemblies, such as flashing, pipes, tubes, heating and air conditioning ducts, furnace casings, rain gutters, or downspouts in supportive frameworks.
- Fasten roof panel edges or machine-made moldings to structures by nailing or welding.
- Maintain equipment, making repairs or modifications when necessary.
- Fabricate ducts for high efficiency heating, ventilating, and air conditioning (HVAC) systems to maximize efficiency of systems.
- Fasten seams or joints together with welds, bolts, cement, rivets, solder, caulks, metal drive clips, or bonds to assemble components into products or to repair sheet metal items.
- Transport prefabricated parts to construction sites for assembly and installation.
- Hire, train, or supervise new employees or apprentices.
- Lay out, measure, and mark dimensions and reference lines on material, such as roofing panels, using calculators, scribes, dividers, squares, or rulers.
- Fabricate or alter parts at construction sites, using shears, hammers, punches, or drills.
- Determine project requirements, such as scope, assembly sequences, or required methods or materials, using blueprints, drawings, or written or verbal instructions.
- Maneuver completed roofing units into position for installation.
- Select gauges or types of sheet metal or nonmetallic material, according to product specifications.
- Shape metal material over anvils, blocks, or other forms, using hand tools.
- Trim, file, grind, deburr, buff, or smooth surfaces, seams, or joints of assembled parts, using hand tools or portable power tools.
- Inspect individual parts, assemblies, or installations, using measuring instruments, such as calipers, scales, or micrometers.
- Convert blueprints into shop drawings to be followed in the construction or assembly of sheet metal products.
- Verify that heating, ventilating, and air conditioning (HVAC) systems are designed, installed, and calibrated in accordance with green certification standards, such as those of Leadership in Energy and Environmental Design (LEED).
- Perform building commissioning activities by completing mechanical inspections of a building's water, lighting, or heating, ventilating, and air conditioning (HVAC) systems.
- Finish parts, using hacksaws or hand, rotary, or squaring shears.
- Install assemblies, such as flashing, pipes, tubes, heating and air conditioning ducts, furnace casings, rain gutters, or downspouts in supportive frameworks.
- Fasten roof panel edges or machine-made moldings to structures by nailing or welding.
- Fit or assist in fitting valves, couplings, or assemblies to tanks, pumps, or systems, using hand tools.
- Measure, cut, thread and assemble new pipe, placing the assembled pipe in hangers or other supports.
- Cut or drill holes in walls or floors to accommodate the passage of pipes.
- Perform rough-ins, repair and replace fixtures and water heaters, and locate, repair, or remove leaking or broken pipes.
- Assist pipe fitters in the layout, assembly, and installation of piping for air, ammonia, gas, and water systems.
- Cut pipe and lift up to fitters.
- Requisition tools and equipment, select type and size of pipe, and collect and transport materials and equipment to work site.
- Mount brackets and hangers on walls and ceilings to hold pipes, and set sleeves or inserts to provide support for pipes.
- Excavate and grade ditches, and lay and join pipe for water and sewer service.
- Disassemble and remove damaged or worn pipe.
- Clean shop, work area, and machines, using solvent and rags.
- Install gas burners to convert furnaces from wood, coal, or oil.
- Fill pipes with sand or resin to prevent distortion, and hold pipes during bending and installation.
- Immerse pipe in chemical solution to remove dirt, oil, and scale.
- Clean and renew steam traps.
- Fit or assist in fitting valves, couplings, or assemblies to tanks, pumps, or systems, using hand tools.
