A professional who tends machines that impregnate fiber tubing, pipe, or conduit with pitch. Respnsibilities include:

• Loads items into treatment tank with hoist and closes tank lid.
• Presses button to start pumps that circulate pitch in tank.
• Turns valves and observes gauges to control vacuum pressure and temperature.
• Records instrument readings at designated intervals.
• Removes impregnated tubes from treatment tank and places them in water tank to cool, using hoist.