Operate or tend equipment, such as cooling and freezing units, refrigerators, batch freezers, and freezing tunnels, to cool or freeze products, food, blood plasma, and chemicals.

Adjust machine or freezer speed and air intake in order to obtain desired consistency and amount of product. Correct machinery malfunctions by performing actions such as removing jams, and inform supervisors of malfunctions as necessary. Insert forming fixtures, and start machines that cut frozen products into measured portions or specified shapes. Load and position wrapping paper, sticks, bags, or cartons into dispensing machines. Measure or weigh specified amounts of ingredients or materials, and load them into tanks, vats, hoppers, or other equipment. Monitor pressure gauges, ammeters, flowmeters, thermometers, or products, and adjust controls to maintain specified conditions, such as feed rate, product consistency, temperature, air pressure, and machine speed. Place or position containers into equipment, and remove containers after completion of cooling or freezing processes. Position molds on conveyors, and measure and adjust level of fill, using depth gauges. Read dials and gauges on panel control boards in order to ascertain temperatures, alkalinities, and densities of mixtures, and turn valves in order to obtain specified mixtures. Scrape, dislodge, or break excess frost, ice, or frozen product from equipment in order to prevent accumulation, using hands and hand tools. Start agitators to blend contents, or start beater, scraper, and expeller blades to mix contents with air and prevent sticking. Start machinery such as pumps, feeders, or conveyors, and turn valves in order to heat, admit, or transfer products, refrigerants, or mixes. Stir material with spoons or paddles in order to mix ingredients or allow even cooling and prevent coagulation. Weigh packages and adjust freezer air valves or switches on filler heads in order to obtain specified amounts of product in each container. Activate mechanical rakes in order to regulate flow of ice from storage bins to vats. Assemble equipment, and attach pipes, fittings, or valves, using hand tools. Inspect and flush lines with solutions or steam, and spray equipment with sterilizing solutions. Record temperatures, amounts of materials processed, and/or test results on report forms. Sample and test product characteristics such as specific gravity, acidity, and sugar content, using hydrometers, pH meters, or refractometers.

Mechanical -- Knowledge of machines and tools, including their designs, uses, repair, and maintenance.

Operation and Control -- Controlling operations of equipment or systems. Operation Monitoring -- Watching gauges, dials, or other indicators to make sure a machine is working properly. Repairing -- Repairing machines or systems using the needed tools. Equipment Maintenance -- Performing routine maintenance on equipment and determining when and what kind of maintenance is needed. Quality Control Analysis -- Conducting tests and inspections of products, services, or processes to evaluate quality or performance. Science -- Using scientific rules and methods to solve problems. Monitoring -- Monitoring/Assessing performance of yourself, other individuals, or organizations to make improvements or take corrective action. Troubleshooting -- Determining causes of operating errors and deciding what to do about it. Mathematics -- Using mathematics to solve problems. Equipment Selection -- Determining the kind of tools and equipment needed to do a job.

Information Ordering -- The ability to arrange things or actions in a certain order or pattern according to a specific rule or set of rules (e.g., patterns of numbers, letters, words, pictures, mathematical operations). Finger Dexterity -- The ability to make precisely coordinated movements of the fingers of one or both hands to grasp, manipulate, or assemble very small objects. Near Vision -- The ability to see details at close range (within a few feet of the observer). Control Precision -- The ability to quickly and repeatedly adjust the controls of a machine or a vehicle to exact positions. Wrist-Finger Speed -- The ability to make fast, simple, repeated movements of the fingers, hands, and wrists. Manual Dexterity -- The ability to quickly move your hand, your hand together with your arm, or your two hands to grasp, manipulate, or assemble objects. Arm-Hand Steadiness -- The ability to keep your hand and arm steady while moving your arm or while holding your arm and hand in one position. Multilimb Coordination -- The ability to coordinate two or more limbs (for example, two arms, two legs, or one leg and one arm) while sitting, standing, or lying down. It does not involve performing the activities while the whole body is in motion. Perceptual Speed -- The ability to quickly and accurately compare similarities and differences among sets of letters, numbers, objects, pictures, or patterns. The things to be compared may be presented at the same time or one after the other. This ability also includes comparing a presented object with a remembered object. Number Facility -- The ability to add, subtract, multiply, or divide quickly and correctly.

Controlling Machines and Processes -- Using either control mechanisms or direct physical activity to operate machines or processes (not including computers or vehicles). Handling and Moving Objects -- Using hands and arms in handling, installing, positioning, and moving materials, and manipulating things. Performing General Physical Activities -- Performing physical activities that require considerable use of your arms and legs and moving your whole body, such as climbing, lifting, balancing, walking, stooping, and handling of materials. Repairing and Maintaining Mechanical Equipment -- Servicing, repairing, adjusting, and testing machines, devices, moving parts, and equipment that operate primarily on the basis of mechanical (not electronic) principles. Monitor Processes, Materials, or Surroundings -- Monitoring and reviewing information from materials, events, or the environment, to detect or assess problems. Documenting/Recording Information -- Entering, transcribing, recording, storing, or maintaining information in written or electronic/magnetic form. Inspecting Equipment, Structures, or Material -- Inspecting equipment, structures, or materials to identify the cause of errors or other problems or defects. Evaluating Information to Determine Compliance with Standards -- Using relevant information and individual judgment to determine whether events or processes comply with laws, regulations, or standards. Identifying Objects, Actions, and Events -- Identifying information by categorizing, estimating, recognizing differences or similarities, and detecting changes in circumstances or events.