Job Description: 1) Assembles prepunched aluminum fin plates and copper tubing to form cooling coils for air-conditioning units, using handtools and other equipment: Places fin plates on worktable and clamps into position. 2) Inserts copper tubing through holes in fin plates. 3) Depresses switch to activate hydraulic rams, forcing them through tubes, to expand tubes […]
AIR-CONDITIONING-COIL ASSEMBLER Read More »
Job Description: 1) Installs and repairs automotive air-conditioning units: Bolts compressor to engine block and installs driving pulley on front end of crankshaft. 2) Places fan belt on pulleys, adjusts tension, and tightens bolts. 3) Bolts evaporator unit under dashboard or in trunk. 4) Welds or bolts mounting brackets to automobile frame. 5) Drills holes
AIR-CONDITIONING MECHANIC Read More »
Job Description: 1) Installs, services, and repairs window air-conditioning units, ranging from 1/2 to 2 tons capacity, in private residences and small establishments: Inspects existing wiring, fuses, or circuit-breaker panels on customer’s premises to ensure adequate power supply for operating air-conditioner. 2) Measures window, transom, or other existing openings for air-conditioning unit, using measuring tape
AIR-CONDITIONING INSTALLER-SERVICER, WINDOW UNIT Read More »
Job Description: 1) Tends air compressors driven by steam, electric, or gasoline powered units, to generate and supply compressed air for operation of pneumatic tools, hoists, and air lances: Starts power unit to build up specified pressure in compressor. 2) Adjusts controls or sets automatic controls to maintain continuous air supply to pneumatic tools or
AIR-COMPRESSOR OPERATOR Read More »
Job Description: 1) Repairs railroad-car air compressors and compressor motors, following wiring diagrams and using handtools: Disassembles compressor and examines parts for wear or breakage. 2) Cleans parts and installs new piston rings and wrist pins. 3) Replaces worn bearings, armatures, field coils, gears, and pinions in electric motors, following wiring diagram. 4) Reassembles compressor
AIR-COMPRESSOR MECHANIC Read More »
Job Description: 1) Operates airborne sensing equipment to locate and identify friendly and enemy aircraft: Places and secures sensing and monitoring equipment, such as IFF, infrared, and radar, in aircraft. 2) Pushes buttons, presses switches and turns knobs to start, control, and stop equipment. 3) Observes equipment scopes and indicators to obtain data to determine
AIRBORNE SENSOR SPECIALIST Read More »
Job Description: 1) Tends steam-heated press that molds and cures air bags used in automatic tire curing presses: Weighs slugs of rubber to obtain specified charge. 2) Positions bag core in mold, using hoist. 3) Places charge in mold cavity and presses switch to close press and start curing cycle. 4) Lifts core from mold
Job Description: 1) Injects compressed air and water into barrels preparatory to inspection by BARREL INSPECTOR, TIGHT: Drives rubber valve into bunghole, using hammer. 2) Inserts nozzle into valve and pulls lever to inject air and water into barrel until specified pressure is attained within barrel as determined by automatic cutoff. 3) Removes nozzle from
AIR-AND-WATER FILLER Read More »
Job Description: 1) 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: Studies system blueprints, specifications, and performance data to determine configuration and purpose of system components, such as motors, pumps, fans, switches, ducts,
AIR AND HYDRONIC BALANCING TECHNICIAN Read More »
Job Description: 1) Conducts experiments or investigations in field-crop problems and develops new methods of growing crops to secure more efficient production, higher yield, and improved quality: Plans and carries out breeding studies at experiment stations or farms to develop and improve varieties of field crops, such as cotton, tobacco, or cereal with respect to