Precision-instrument Makers and Repairers

adjusting timing regulators, using calipers, watch-rate recorders and tweezers

cleaning, rinsing and drying timepiece parts, using solutions and ultrasonic or mechanical watch-cleaning machines

testing timepiece accuracy and performance, using meters and other electronic instruments

testing accuracy of meters, gauges, indicators or other recording or controlling instruments to locate defective components and for conformance to standards

calibrating instruments or scales, using hand tools and computer or electronic devices

inspecting components, connections and drive mechanisms to detect defects

assembling instruments and devices such as barometers, control valves, gyroscopes, hygrometers, speedometers, tachometers and thermostats

testing, calibrating and adjusting electronic, mercurial, aneroid and other types of meteorological instruments for compliance with printed specifications and schematic diagrams, using voltmeters, oscilloscopes, tube testers, and other test instruments

adjusting and repairing masts, supporting structures, clearance lights, control panels, control cabling and wiring, and other electrical and mechanical devices

repairing and setting optical instruments such as microscopes, telescopes, theodolites and sextants

checking whether assembled units conform to specifications and ensuring stipulated performance and sensitivity by standard tests.