A professional who tends refrigerating equipment that freezes water into ice, performing any combination of following tasks. Respnsibilities include:

• Opens valves to fill containers with specified amounts of water, and lowers containers into freezing tanks, using hoist.
• Inserts air bubbler into containers and starts agitator in freezing tank to ensure uniform freezing.
• Siphons or pumps water containing foreign matter from centers of partially frozen ice blocks, using suction pump, and refills container with fresh water.
• Flushes surfaces of ice blocks with hose.
• Removes container from tank, using hoist, and immerses it in warm water or places it in steam bath to free ice from container sides.
• Positions cans on dumping pivot and pushes buttons to tilt pivot and dump ice onto conveyor or platform.
• Adds prescribed amounts of materials into mixing vats and starts agitator to mix brine solution for freezing tanks.
• May turn valves to regulate compressors and condensers.
• When performing specific duty, may be known as Can Filler; Dumper; Ice Puller.