Repair, adjust, or install all types of electric or gas household appliances, such as refrigerators, washers, dryers, and ovens.

Repairs and adjusts metal and wooden casement windows, storm windows and doors, and jalousies, using hand tools and portable power tools. Fixes or replaces locks, hinges, and cranks. Realigns windows and screens to fit casements. Oils moving parts of sections.

May cut and install glass. May paint windows, using brush or spray equipment.

Constructs, erects, installs, and repairs structures and fixtures of wood, plywood, and wallboard, using carpenter's handtools and power tools, and conforming to local building codes

studies blueprints, sketches, or building plans for information pertaining to type of material required, such as... [+] More

Constructs, erects, installs, and repairs structures and fixtures of wood, plywood, and wallboard, using carpenter's handtools and power tools, and conforming to local building codes

studies blueprints, sketches, or building plans for information pertaining to type of material required, such as lumber or fiberboard, and dimensions of structure or fixture to be fabricated. Selects specified type of lumber or other materials. Prepares layout, using rule, framing square, and calipers. Marks cutting and assembly lines on materials, using pencil, chalk, and marking gauge. Shapes materials to prescribed measurements, using saws, chisels, and planes. Assembles cut and shaped materials and fastens them together with nails, dowel pins, or glue. Verifies trueness of structure with plumb bob and carpenter's level. Erects framework for structures and lays subflooring. Builds stairs and lays out and installs partitions and cabinet work. Covers subfloor with building paper to keep out moisture and lays hardwood, parquet, and wood-strip-block floors by nailing floors to subfloor or cementing them to mastic or asphalt base. Applies shock-absorbing, sound-deadening, and decorative paneling to ceilings and walls. Fits and installs prefabricated window frames, doors, doorframes, weather stripping, interior and exterior trim, and finish hardware, such as locks, letterdrops, and kick plates. Constructs forms and chutes for pouring concrete. Erects scaffolding and ladders for assembling structures above ground level. May weld metal parts to steel structural members. When specializing in particu. [-] Less

Replaces broken or pitted windshields and window glass in motor vehicles

removes broken glass by unscrewing frame, using handtools. Cuts flat safety glass according to specified pattern, using glasscutter. Smooths cut edge of glass by holding against abrasive belt. Applies moistureproofing... [+] More

Replaces broken or pitted windshields and window glass in motor vehicles

removes broken glass by unscrewing frame, using handtools. Cuts flat safety glass according to specified pattern, using glasscutter. Smooths cut edge of glass by holding against abrasive belt. Applies moistureproofing compound along cut edges and installs glass in vehicle. Weatherproofs window or windshield and prevents it from rattling by installing rubber channeling strips around sides of glass. Installs precut replacement glass to replace curved windows. May replace or adjust parts in window-raising mechanism. [-] Less

Tends machines that cut window shade fabric and rollers to specified size, and install roller end caps and hanging pins, and staple fabric to roller

installs roll of shade cloth on spindles of window-shade cutter machine. Threads end of cloth through... [+] More

Tends machines that cut window shade fabric and rollers to specified size, and install roller end caps and hanging pins, and staple fabric to roller

installs roll of shade cloth on spindles of window-shade cutter machine. Threads end of cloth through retaining and feed rollers of machine. Turns handle to feed specified amount of cloth into machine. Depresses treadle to cut cloth and fold bottom hem. Clamps shade roller against stop on saw carriage, starts machine, and pushes carriage against saw blade to cut roller to specified length. Removes roller and slips cap over each end. Clamps roller in pin-driving machine, inserts pin in driver, and depresses lever to drive pin through cap into end of roller. Fastens top end of cloth to roller, using hand stapler. [-] Less

Cleans windows, glass... [+] More

Cleans windows, glass partitions, mirrors, and other glass surfaces of building interior or exterior, using pail of soapy water or other cleaner, sponge, and squeegee. Crawls through window from inside and hooks safety belt to brackets for support, sets and climbs ladder to reach second or third story, or uses bosun's chair, swing stage, or other scaffolding lowered from roof to reach outside windows, or stands to reach first floor or inside windows. [-] Less

Tests efficiency of heating and air-conditioning equipment under simulated operating conditions

connects heating and air-conditioning equipment to facilities, such as heating units, waterlines, and spray devices to set up controlled temperature and moisture conditions. Constructs cardboard air ducts and other accessories... [+] More

Tests efficiency of heating and air-conditioning equipment under simulated operating conditions

connects heating and air-conditioning equipment to facilities, such as heating units, waterlines, and spray devices to set up controlled temperature and moisture conditions. Constructs cardboard air ducts and other accessories for use in testing equipment. Couples gauges and instruments to system and starts equipment. Observes and records readings of instruments, such as thermometers, psychrometers, thermocouples, air flowmeters, voltmeters, ammeters, and pressure and draft gauges. Informs supervisor of unusual noise and instrument readings during operation of equipment. May plot instrument reading data. [-] Less

Assists air-conditioning installer-servicer, window unit in repairing, servicing, or installing window-mounted air-conditioning units, performing any combination of following duties

carries unit from delivery vehicle to work site. Assembles window-support brackets, using handtools. Cuts opening through wall for insertion of unit, using... [+] More

Assists air-conditioning installer-servicer, window unit in repairing, servicing, or installing window-mounted air-conditioning units, performing any combination of following duties

carries unit from delivery vehicle to work site. Assembles window-support brackets, using handtools. Cuts opening through wall for insertion of unit, using hammer and chisel. Applies caulking compound to excess space between air-conditioner and wall opening. Performs other duties as described under helper. [-] Less

Assists workers engaged in installing, repairing, and servicing industrial, commercial, and residential environmental-control systems, performing any combination of following duties

cuts, punches, flanges, shears, and solders sheet metal ducts and parts, using handtools and portable power tools. Cuts threads and packs... [+] More

Assists workers engaged in installing, repairing, and servicing industrial, commercial, and residential environmental-control systems, performing any combination of following duties

cuts, punches, flanges, shears, and solders sheet metal ducts and parts, using handtools and portable power tools. Cuts threads and packs pipes. Cements insulation in place over finished piping or tubing. Passes electrical wire through conduit, splices wire connections, and tapes wire. Assembles sheet metal components of prefabricated furnaces, using handtools. Replaces exhausted or defective containers of refrigerant with new refrigerant. Lubricates fans, motors, and control units. Installs air and water filters in completed assembly. Performs other duties as described under helper. May be designated according to type of equipment serviced as air-conditioning-mechanic helper, industrial. [-] Less

Installs,... [+] More

Installs, services, and repairs heating, ventilating, air conditioning systems, and related environmental-control systems utilizing knowledge of heating and refrigeration theory, pipefitting, and structural layout. Mounts compressor and condenser units on platform or floor, using hand tools, following blueprints or engineering specifications. Fabricates, assembles, and installs ductwork and chassis parts, using portable metalworking tools and welding equipment.

Installs evaporator unit in chassis or in air-duct system, using hand tools. Cuts and bends tubing to correct length and shape, using cutting and bending equipment and tools. Cuts and threads pipe, using machine-threading or hand-threading equipment. Joins tubing or pipes to various refrigerating units by means of sleeves, couplings, or unions, and solders joints, using torch, forming complete circuit for refrigerant. Installs expansion and discharge valves in circuit. Connects motors, compressors, temperature controls, humidity controls, and circulating-ventilation fans to control panels, and connects control panels to power source. Installs air and water filters in completed installation. Injects small amount of refrigerant into compressor to test systems, and adds Freon gas to build up prescribed operating pressure. Observes pressure and vacuum gauges and adjusts controls to ensure efficient operation. Tests joints and connections for gas leaks, using gauges or soap-and-water solution. Wraps pipes in insulation batting and secures them in place with cement or wire bands. Replaces defective breaker controls, thermostats, switches, fuses, and electrical wiring to repair installed units, using electrician's hand tools and test equipment. May install, repair, and service air conditioners, ranging from 15 to 20 tons of cooling capacity, in warehouses and factory buildings. [-] Less