- Industry: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who repairs and adjusts conveyor systems, using handtools. Responsibilities include:
* Installs belts in machinery, tightens bolts, adjusts tension rolls, straightens parts, aligns rollers, and replaces defective parts.
* May install conveyor systems.
Industry:Professional careers
A professional who repairs, services, and installs hydraulic door closers, using machines and handtools. Responsibilities include:
* Disassembles closers, using handtools and vise.
* Immerses parts in solution of caustic soda and water to clean parts.
* Removes encrusted dirt and rust, using electric rotary wire brush and grinding wheel.
* Replaces worn or broken parts.
* Fabricates parts, using lathes, drill presses, shaping and milling machines, and precision measuring instruments, such as micrometers, calipers, and scales.
* Welds cracked closer casings, using acetylene torch.
* Fills oil chamber and packs spindle with leather washers.
* Paints finished door closer.
Industry:Professional careers
A professional who tests and repairs ore-crushing and ore-transporting machinery. Responsibilities include:
* Starts machines and equipment, such as feeders, jaw crushers, conveyor belts, and suction dust collectors.
* Observes machines and equipment in operation for defects and malfunctions.
* Turns valves to regulate flow of water into cooling system.
* Breaks up clogged ore, using iron bar or pneumatic hammer.
* Repairs machines and equipment, using handtools.
Industry:Professional careers
A professional who repairs and adjusts hand-or power-operated equipment used to lubricate automobiles, trucks, and industrial equipment, using handtools. Responsibilities include:
* Dismantles equipment, such as grease guns, air lines, and lubricating pumps.
* Examines parts for breaks, wear, and dirt.
* Replaces defective parts.
* Cleans and assembles equipment.
Industry:Professional careers
A professional who repairs and adjusts spray-paint guns and paint-mixing machines, using handtools. Responsibilities include:
* Disassembles spray gun, using wrenches.
* Cleans parts in gasoline or other solvent.
* Wipes parts dry.
* Replaces valves, jets, and other worn or broken parts.
* Attaches new hose to guns.
* Turns thumbscrews, nuts, and other controls on gun to adjust jets and nozzles.
* Repairs agitators of paint-mixing equipment.
* May mix paints and lacquers, using paddle or electric shaker-agitator, scales, and viscosity cups.
* May order parts and materials to maintain inventory levels.
Industry:Professional careers
A professional who rebuilds safety and flow valves used on compressed and liquefied gas cylinders, drums, or railway cars. Responsibilities include:
* Disassembles valve, using bench vise and handtools.
* Inspects components for surface flaws, and defects in stem and threads.
* Reams valve seats with hand reamer and dresses threads with tap and die.
* Immerses parts in cleaning solution and reassembles valve.
* Dips valve in molten lead, using tongs, to prevent leakage.
* Attaches valve and fusible plug to high-pressure gasline, submerges it in water, and observes for bubbles to test valve and plug for leaks.
* Melts out defective plugs, scrapes hole clean, and pours in new metal.
* Records number of valves tested and test results.
* May attach gauge and open air valve to test filled cylinders for pressure.
* May brush or spray chemical solution around valves to test filled cylinders for leaks.
* May fill cylinders.
Industry:Professional careers
A professional who fabricates and repairs fixtures, rods, baskets, and hooks used to suspend articles in plating, cleansing, and painting vats, using handtools and portable power tools. Responsibilities include:
* Cuts metal stock to size, using handsaws or power saws and forming machines and following working sketches.
* Bends metal, using vise or hammer.
* Drills and taps holes, using portable power drill.
* Bolts or screws parts together, using wrenches and screwdrivers.
* May braze, solder, or weld parts together.
Industry:Professional careers
A professional who cleans and repairs aluminum-processing equipment, such as heaters, heat exchangers, evaporators, pipelines, pumps, cooler coils, and filter leaves, using handtools. Responsibilities include:
* Removes heads from heaters, evaporators, preheaters, and heat exchangers, using impact wrenches.
* Mixes acid or caustic with water and inhibiting chemicals to prepare cleaning solutions of specified concentrations.
* Tests solutions, using acid-testing equipment.
* Turns valves to circulate cleaning agents through equipment for time indicated by test results.
* Washes vessels and heaters with water.
* Removes scale from tubes, using air-powered turbines and drills.
* Examines vessels or heaters for leaks, and marks defective areas.
* Reassembles vessels and heaters, using chain falls, block and tackle, impact wrenches, and handtools.
* Lubricates valves and adjusts packing glands to prevent leaks.
* May keep records of repairs and test results.
Industry:Professional careers
A professional who assists repairer in repairing machinery and equipment used in processing ore. Responsibilities include:
* Cuts out worn parts of conveyor belts, using shears.
* Draws ends of belt together, using block and tackle, and splices ends with metal fasteners.
* Loosens sections of machines and equipment, such as turbo-generators, vibrating screens, air compressors, conveyors, crushers, condensers, and boilers, using handtools and electric hoist.
* Removes worn pipe sections from air, oil, steam, and waterlines, using wrenches and chain hoist.
* Cleans soot and scale from steam tubes and water-cooling pipes of pressure boilers, using brush and airhose.
* Performs other duties as described under helper master title.
Industry:Professional careers
A professional who repairs sizing screens and cyclones (centrifugal separators) used in processing iron ore, using handtools and chain hoist. Responsibilities include:
* Inspects screen panels on vibrating screens and screen cloth on ball mill trommels for wear and damage.
* Replaces worn screen panels on vibrating screens, using wrenches and hammer.
* Installs new screen cloth on ball mill trommels, using wrenches and chain hoist.
* Signals overhead crane operator to remove and replace cyclones for scheduled maintenance.
* Measures cyclone parts with rule and tape measure to determine need for replacements.
* Replaces worn parts, such as feed and shell linings, using wrenches.
* Cleans spray nozzles and belt scrapers in conveyor belt washing system.
Industry:Professional careers
