Job Description:

• 1) Charges illuminated sign tubing with rare gases: Attaches formed sign tubing to pumping unit through fused tubulations.

• 2) Removes air from tubing by means of vacuum pump.

• 3) Bombards tubing with high-voltage electric current to eliminate gaseous impurities.

• 4) Reduces vacuum in tubing to specified point, using vacuum pump and vacuum gauge.

• 5) Connects and opens rare gas bottle to admit rare gas, such as neon, argon, helium, krypton, xenon, distilled mercury, or blue gas to specified pressure as indicated by pressure gauge.

• 6) Tests sign by connecting electrodes to secondary winding of transformer and observing color of light.

• 7) Seals tubing by heating and closing tubulations.

• 8) Connects tubing to transformer and operates several hours to age tubing.

• 9) May paint or tape tubing to separate symbols.