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Installs and repairs automotive air‑conditioning units: Bolts compressor to engine block and installs driving pulley on front end of crankshaft. Places fan belt on pulleys, adjusts tension, and tightens bolts. Bolts evaporator unit under dashboard or in trunk. Welds or bolts mounting brackets to automobile frame. Drills holes through interior panels, threads hoses through holes and connects hoses to compressor, evaporator, and cool‑air outlet. Fills compressor with refrigerant and starts unit. Measures compressor pressure to determine efficiency of compressor, using gauge. Listens to operating unit for indications of malfunction. Removes faulty units from vehicles, disassembles them, and replaces worn and broken parts and fluid in unit. Makes electrical connections as required.
Work Process Schedule
Related Technical Instruction
The Commonwealth of Massachusetts requires 150 hours each year of related technical instruction which must be mastered by the apprentice in order to successfully complete the program. For further information, please call the Division of Apprentice Standards at (617) 626-5409.
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