- Industri: Government; Labor
- Number of terms: 77176
- Number of blossaries: 0
- Company Profile:
A professional who tests, repairs, and adjusts all types of industrial gas equipment, including control mechanisms, such as thermostats, high-temperature-limit controls, solenoid valves, safety pilots, and various other safety controls actuated by bimetallic expansion, fluid expansion, or thermocouple electric energy.
* May advise customers on proper installation of equipment.
* May install or remove large industrial meters, regulators, and related equipment.
* May read meters.
Industry:Professional careers
A professional who installs and repairs industrial and commercial refrigerating systems according to blueprints and engineering specifications, using knowledge of refrigeration, structural layout, and function and design of components. Responsibilities include:
* Lays out reference points for installation of structural and functional components, using measuring instruments, such as tape, transit, plumb bob, levels, and square.
* Drills holes and installs mounting brackets and hangers into floor and walls of building.
* Lifts and aligns components into position, using hoist or block and tackle.
* Screws, bolts, rivets, welds, and brazes parts to assemble structural and functional components, such as motors, controls, switches, gauges, wiring harnesses, valves, pumps, compressors, condensers, cores, and pipes.
* Cuts, threads, and connects pipe to functional components and water or power system of premises.
* Pumps specified gas or fluid into system.
* Starts system, observes operation, reads gauges and instruments, and adjusts mechanisms, such as valves, controls, and pumps to control level of fluid, pressure, and temperature in system.
* Dismantles malfunctioning systems and tests components, using electrical, mechanical, and pneumatic testing equipment.
* Replaces or adjusts defective or worn parts to repair systems.
* May insulate shells and cabinets of systems.
* May install wiring to connect components to electric power source.
* May specialize in installing systems and be designated refrigeration-system installer.
Industry:Professional careers
A professional who installs and repairs solar-energy systems designed to collect, store, and circulate solar-heated water or other medium for residential, commercial, or industrial use. Responsibilities include:
* Locates and marks position of collectors, holding tank, and distribution system on structure, according to specifications and blueprints.
* Cuts holes in roof, walls, and ceiling to install equipment and plumbing, using power saws and drills.
* Installs supports and brackets to anchor solar collectors and holding tank, using carpenter's handtools.
* Cuts, threads, and fits plumbing according to specifications for connecting circulation system, using plumber's handtools.
* Lays out and connects electrical wiring between controls and pumps according to wiring diagram and knowledge of standard industry practice, using electrician's handtools.
* Tests electrical circuits and components for continuity, using electrical test equipment.
* Tests plumbing for leaks, using pressure gauge.
* Pushes control buttons to activate pumps and observes system to detect malfunctions.
* Repairs or replaces defective equipment.
Industry:Professional careers
A professional who inspects, tests, adjusts, and balances heating, cooling, and ventilating systems in residential, commercial, and industrial buildings, using specialized tools and test equipment, to attain performance standards specified in system design. Responsibilities include:
* Studies system blueprints, specifications, and performance data to determine configuration and purpose of system components, such as motors, pumps, fans, switches, ducts, or pipes.
* Discusses system malfunctions with users to isolate problems.
* Inspects system to verify system compliance with plans and specifications and to detect malfunctions in system component parts.
* Adjusts system controls to settings recommended by vendor to prepare to perform tests.
* Tests performance of air and hydronic systems, using specialized tools and test equipment, such as pitot tube, manometer, anemometer, velometer, tachometer, psychrometer, and thermometer, to isolate problems and determine where adjustments are necessary.
* Opens or closes louvers in system ductwork or adjusts flow control valves in piping to balance system, using handtools such as pliers, screwdriver, or wrenches.
* Discusses system operation with users to verify that malfunctions have been corrected.
Industry:Professional careers
A professional who installs and repairs submerged turbine pumps in waterwells, using rig (truck-mounted hoisting equipment). Responsibilities include:
* Drives rig into position adjacent to well.
* Starts hoisting engine and moves levers and pedals to raise and extend telescoping hoisting mast.
* Bolts guy wires and struts to mast for support.
* Threads and tightens pump parts, such as pump bowl, shaft, bearings, tubing, and couplings, using wrenches and chain tongs to assemble pump section.
* Raises pump section to vertical position and installs section in well casing, using rig loadline and winch.
* Screws coupling or bolts flange to connect pump base to pipe column.
* Drives wedges under pump base to align base with pump shaft, centering pump shaft in opening until tube nut or packing container fits without interference, or using dial indicator to verify alignment.
* Hoists electric motor drive or engine drive gear box into position over pump base and inspects clearance between shaft and hollow spindle of driver to verify alignment of pump shaft.
* Attaches pressure gauge and orifice meter to pump outlet and pumps air into well to measure static and dynamic water levels and capacity of well.
* Dismantles pumps to clean, repair, and replace worn or damaged parts.
* May work in shop to repair various types of pumps, such as centrifugal, plunger, and turbine pumps.
Industry:Professional careers
A professional who installs and repairs submerged turbine pumps in waterwells, using rig (truck-mounted hoisting equipment). Responsibilities include:
* Drives rig into position adjacent to well.
* Starts hoisting engine and moves levers and pedals to raise and extend telescoping hoisting mast.
* Bolts guy wires and struts to mast for support.
* Threads and tightens pump parts, such as pump bowl, shaft, bearings, tubing, and couplings, using wrenches and chain tongs to assemble pump section.
* Raises pump section to vertical position and installs section in well casing, using rig loadline and winch.
* Screws coupling or bolts flange to connect pump base to pipe column.
* Drives wedges under pump base to align base with pump shaft, centering pump shaft in opening until tube nut or packing container fits without interference, or using dial indicator to verify alignment.
* Hoists electric motor drive or engine drive gear box into position over pump base and inspects clearance between shaft and hollow spindle of driver to verify alignment of pump shaft.
* Attaches pressure gauge and orifice meter to pump outlet and pumps air into well to measure static and dynamic water levels and capacity of well.
* Dismantles pumps to clean, repair, and replace worn or damaged parts.
* May work in shop to repair various types of pumps, such as centrifugal, plunger, and turbine pumps.
Industry:Professional careers
A professional who installs and repairs household, commercial, and industrial automatic coal stokers in furnaces according to specifications, using handtools and welding equipment. Responsibilities include:
* Removes plate from side of furnace with screwdriver or wrench or cuts hole in side of furnace with acetylene torch to make opening for entrance of stoker.
* Places stoker in operating position with feed mechanism projecting through side plate opening or hole in furnace wall and builds up firebrick or clay around it.
* Installs thermostat in furnace room or other part of building, instrument panel in furnace room, and regulator on boiler or furnace.
* Connects regulator wires to control panel and stoker wires with control panel wires according to wiring diagram.
* Replaces fuses, repairs short circuits in wiring, and removes clinkers from furnace bed and pieces of metal from screw conveyor.
Industry:Professional careers
A professional who repairs and installs cooling units to draw air over moistened pads, using handtools and portable power tools. Responsibilities include:
* Disassembles, cleans, and oils parts.
* Replaces motor bearings, aligns pulleys on motor and blower shafts, and tightens slack in drive belts.
* Replaces defective wiring.
* Holds tachometer against revolving centers of blowers and motors to verify specified revolutions per minute.
* Bolts cooler to window or platform adjacent to window, following layout lines.
* Cuts and installs plywood or building board to fit vacant window space.
* Installs electrical outlets and thermostat or humidistat controls.
* Cuts and connects tubing to cooler and water source.
* Adjusts rate of water flow.
* May install cooler on roof and assemble prefabricated sheet metal ducts in attic.
Industry:Professional careers
A professional who replaces defective components and reassembles refrigeration units to work orders and blueprint specifications. Responsibilities include:
* Studies rejection slips from inspection department or customer's letters and observes functioning of components, such as controls, fan, condenser, evaporator, or compressor to determine need for repair or replacement.
* Drains oil and pumps gas from unit.
* Loosens bolts, and melts soldered or brazed seams, to dismantle unit, using handtools and torch.
* Removes and replaces defective components.
* Brazes or solders parts to repair defective joints and leaks.
* Reassembles unit, using measuring instruments, handtools, soldering iron, and hand torch.
* Routes defective components to salvage department.
* May adjust unit controls.
* Records cause of malfunction, repairs, and replacements made.
Industry:Professional careers
A professional who assists in testing, repairing, and installing gas equipment, domestic gas appliances, and gas meters. Responsibilities include:
* Cuts, threads, and joins pipe as directed, using handtools.
* Brushes soap solution over connections to test for leaks.
* Positions heavy equipment, using hoist.
* Performs other duties as described under helper master title.
Industry:Professional careers
