Section 408.17701d. Definitions.

d. (1) "Choked leg" means a condition of material buildup in the bucket elevator that results in the stoppage of material flow and bucket movement. A bucket elevator is not considered choked if it has the up leg partially or fully loaded and has the boot and discharge cleared allowing bucket movement.

(2)   "Flat storage structure" means a grain storage building or structure that will not empty completely by gravity, has an unrestricted ground level opening for entry, and must be entered to reclaim the residual grain using powered equipment or manual means.

(3)   "Fugitive grain dust" means combustible dust particles that are emitted from the stock handling system and that are a size that will pass through a United States standard 40-mesh sieve (425 microns or less).

(4)     "Grain elevator" means a facility that is engaged in the receipt, handling, storage, and shipment of bulk raw agricultural commodities, such as corn, wheat, oats, barley, sunflower seeds, and soybeans.

(5)   "Hot work" means work that involves electric or gas welding, cutting, or brazing or similar flame-producing operations.

(6)   "Inside bucket elevator" means a bucket elevator that has the boot and more than 20% of the total leg height, which is above grade or ground level, inside the grain elevator structure. Bucket elevators with leg casings that are inside of and pass through the roofs of, rail or truck dump sheds with the remainder of the leg outside of the grain elevator structure are not considered inside bucket elevators.

(7)     "Jogging" means the repeated starting and stopping of drive motors in an attempt to clear choked legs.

(8)   "Lagging" means a covering on drive pulleys used to increase the coefficient of friction between the pulley and the belt.

(9)      "Permit" means the written certification of the employer that authorizes employees to perform identified work operations subject to specified precautions.

History: 2014 AACS.