Tends ventilating and heating equipment, such as fans, vacuum pumps, air compressors, vents and ducts....
Tends ventilating and heating equipment, such as fans, vacuum pumps, air compressors, vents and ducts, and lubrication-oil coolers used in buildings or industrial processes: Adjusts valves to regulate temperature of lubrication oil and flow of water through system. Moves controls to regulate speed of fans and to adjust vents and ducts. Records gauge readings, repairs completed, and time lost because of inoperative equipment. Writes repair work order tickets and out-of-order tags preparatory to equipment repair. Inspects equipment to detect excessive noise and heat. Replaces gauges and tightens and caulks leaky fittings, using wrenches, hammers, and caulking tool. Cleans carbon deposits, pitch, and grease from fans, vents, and ducts, using scrapers, hammer, and compressed air or steam.