1. Installs, services, and repairs environmental control systems in residences, department stores, office buildings, and commercial establishments, utilizing knowledge of refrigeration theory, pipefitting, and structural layout: Mounts compressor and condenser units on platform or floor, using handtools, following blueprints or engineering specifications. 2. Fabricates, assembles, and installs ductwork and chassis …
1. 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. 2. Cuts threads and packs pipes. 3. Cements insulation in place over …
1. Fuses together plastic sheets, using hot-air gun to melt and join edges of sheets: Cuts sheets to be joined to form smooth edges, using knife. 2. Sands edges, using power sander, to form V-joint. 3. Places plastic rod in V-joint and activates hot-air gun to melt rod, causing mass …
1. Controls oil, gas, or electrical furnace to heat stock, such as billets, bars, plates and rods, preparatory to forging, following work order specifications: Reads dials and gauges, and turns knobs to regulate flow of fuel or electric current to verify and maintain specified temperature within furnace. 2. Positions stock …
1. Assists HEATER I in heating steel to specified rolling temperature in soaking-pit furnaces: Ignites furnace burners, using torch. 2. Turns valves and dampers of furnace. 3. Records meter readings of furnace. 4. Performs other duties as described under HELPER Master Title.
1. Controls gas or oil fired soaking pit or reheating furnaces to heat sheets, blooms, billets, and slabs to specified rolling temperature: Ignites furnace burners with torch, and turns valves to regulate flow of fuel and air to burners. 2. Signals CHARGER OPERATOR to charge steel into furnace. 3. Reads …
1. Controls ovens to carbonize coal according to coking schedules: Removes flue caps, using hook, and determines temperature in flue and condition of nozzles by observing color of flame and using optical pyrometer. 2. Determines type of gases in flue, using gas analyzer. 3. Reads gauges and turns valves to …
1. Feeds and off bears furnace that heats semiconductor wafers to relieve stress caused by sawing and to stabilize resistivity: Transfers wafers from storage container to quartz boat. 2. Places boat on conveyor belt that automatically moves wafers through furnace. 3. Removes boat from conveyor belt at furnace exit. 4. …
1. Controls heat-treating furnaces, baths and quenching equipment to alter physical and chemical properties of metal objects, using specifications and methods of controlled heating and cooling, such as hardening, tempering, annealing, case-hardening, and normalizing: Determines temperature and time of heating cycle, and type and temperature of baths and quenching medium …
1. Controls one or more furnaces to heat treat metal objects according to specifications: Places parts in racks, trays, or baskets, and places objects on conveyor or loads objects directly into furnace. 2. Adjusts furnace temperature and observes pyrometer to heat metal to prescribed temperature. 3. Sets speed of conveyor …
1. Fits and sells hearing amplification systems to individuals in retail establishment: Tests auditory system of hearing-impaired individuals, using test equipment and applying standardized evaluation procedures; or receives individuals referred by physician for fitting and purchasing of hearing amplification systems. 2. Interprets and evaluates auditory test results and confers with …
1. Tests and repairs hearing aids, using oscilloscope, electrical test meters, and handtools, following schematic diagram: Tests circuits for shorts, open wires, or defective parts, using electrical test meters. 2. Solders loose connections and replaces defective parts, such as resistors, condensers, batteries, and transistors. 3. Repairs or replaces transformer, microphone, …
1. Loads and unloads oven that cures color in screen-printed textiles: Hangs articles on rack and pushes rack into preheated oven. 2. Removes articles from oven after specified time. 3. Counts and records number of articles cured and packs articles into boxes.
1. Devises and directs research, training, and monitoring programs to protect plant and laboratory personnel from radiation hazards: Conducts research to develop inspection standards, radiation exposure limits for personnel, safe work methods, and decontamination procedures, and tests surrounding areas to ensure that radiation is not in excess of permissible standards. …
1. Investigates reported cases of communicable diseases and advises exposed persons to obtain medical treatment and to prevent further spread of disease: Locates and interviews exposed person, using information obtained from records of state or local public health departments and from individual already under treatment for communicable disease. 2. Advises …
1. Tends machine that sands excess point from pencil ends and cuts pencils to specified length: Dusts ends of pencils with cornstarch to prevent sticking together. 2. Places pencils in hopper of machine and starts machine. 3. Examines pencils for defects, such as chips in paint and incorrect length. 4. …
1. Operates heading saw to cut pieces of heading material from heading bolts: Loosens nut and adjusts guides to thickness of heading material. 2. Stands bolt on end in swing carriage of machine. 3. Moves bolt against guides and clamps bolt with tooth-edged clamp. 4. Starts saw and pushes swing …
1. Feeds machines that automatically pull snouts or jawbones from hog heads and split heads to prepare meat for further processing: Cuts jawbone joints and sides and front of snout to prepare parts for pulling process, using knife. 2. Positions and holds head on bed of automatic machines to pull …
1. Operates multiple-circular-saw machine that automatically cuts insulation board into panels: Installs and adjusts saws on shaft, using rule and handtools. 2. Starts machine that automatically feeds boards from conveyor into saws. 3. Measures sample panels for conformance to specified dimensions. 4. Inspects cut edge for indications of dulled saw …
1. Supervises and coordinates activities of STEVEDORE II engaged in loading and unloading ships’ cargoes: Assigns duties to workers, and explains methods of handling, stowing, securing cargo, and setting up hoisting equipment. 2. Determines what cargo requires special handling and how it is to be stowed in ship’s hold. 3. …
1. Tends machines that segregate cartridge cases with oversize and undersize heads: Turns valve to adjust pneumatic conveyor transferring cases from washer-dryer to storage hopper. 2. Raises hopper gate to regulate flow of cases to shaker plate and turns wingnut to adjust spacing of gauge rails. 3. Starts machines to …
1. Repairs tight barrelhead, using either of following methods: Separates sections of barrelhead with chisel, inserts strips of flagging between sections, and hammers them together to enlarge barrelhead to fit croze of barrel. 2. Removes section of head, replaces it with wider board, and sends head to TURNING-MACHINE OPERATOR for …
1. Operates head saw and feed carriage to saw logs into cants or boards: Starts mechanical loader arms that place log on carriage. 2. Sets dogs and adjusts carriage blocks to align log for sawing. 3. Activates carriage that moves log against saw blade. 4. Starts saw to cut log. …
1. Operates head saw, log carriage, and conveyor system, using panel buttons and hand and foot controls to saw logs into rough cants or boards: Starts conveyor that transfers log to log carriage with kicker arms. 2. Activates log turners that turn log, scans log to ascertain best approach for …
1. Trims meat, glands, and organs from carcass heads for use in making meat products or processing for medicinal use or byproducts, performing any combination of following tasks: Places head on table or in holding hooks and trims skin and meat from jaw, jowls, and skull with knife. 2. Cuts …
