Job Description:

• 1) Tends machine that mixes ground scrap rubber with pigments, caustics, and oils to prepare rubber for devulcanization: Pulls slide on gravity chute or shovels ground scrap rubber into weigh hopper.

• 2) Pulls lever to dump scrap rubber from weigh hopper into mixer.

• 3) Measures and weighs pigments, caustics, and oils according to formula, and dumps or drains them into mixer.

• 4) Starts machine that mixes materials for specified time.

• 5) Pulls lever to release mixture from machine into pans.

• 6) Lifts pans onto heater cars by hand or with hoist.

• 7) Signals worker to move pans of mixed stock into heaters.

• 8) May tend cracker mill that grinds scrap rubber into particles.

• 9) May unload heaters and dump devulcanized scrap rubber from pans.

• 10) May line pans with waxed paper or sprinkle with pulverized soapstone to prevent rubber from sticking.