Job Description:

• 1) Repairs, tests, and calibrates optomechanical instruments, such as range finders, gun directors, and fire-control instruments, according to specifications, using handtools, bench machines, and precision measuring instruments: Disassembles optomechanical instruments and inspects for defects, such as broken or worn mechanical parts and scratched or defectively coated optical elements.

• 2) Fabricates replacement parts, using bench lathes, drill presses, and milling machines.

• 3) Cleans optical element, using cloth, and immerses element in solution to remove defective coating.

• 4) Files and hones mechanical parts to facilitate meshing of gears.

• 5) Coats optical element, using coating equipment.

• 6) Reassembles instruments and adjusts parts to ensure freedom of movement, using handtools.

• 7) Installs instrument in test fixture or mount, and sights known objective of fixed distance and height to test sighting accuracy of instrument.

• 8) Adjusts readings on instrument dials to calibrate instrument according to observation.

• 9) Measures dial graduations and scales to verify accuracy, using precision measuring instruments.

• 10) Engraves scales and graduations on instrument dials to correct errors, using pantograph engraving machine.