Job Description:

• 1) Cleans and repairs aluminum-processing equipment, such as heaters, heat exchangers, evaporators, pipelines, pumps, cooler coils, and filter leaves, using handtools: Removes heads from heaters, evaporators, preheaters, and heat exchangers, using impact wrenches.

• 2) Mixes acid or caustic with water and inhibiting chemicals to prepare cleaning solutions of specified concentrations.

• 3) Tests solutions, using acid-testing equipment.

• 4) Turns valves to circulate cleaning agents through equipment for time indicated by test results.

• 5) Washes vessels and heaters with water.

• 6) Removes scale from tubes, using air-powered turbines and drills.

• 7) Examines vessels or heaters for leaks, and marks defective areas.

• 8) Reassembles vessels and heaters, using chain falls, block and tackle, impact wrenches, and handtools.

• 9) Lubricates valves and adjusts packing glands to prevent leaks.

• 10) May keep records of repairs and test results.