Ala. Admin. Code r. 480-3-3-.07

Current through Register Vol. 43, No. 1, October 31, 2024

Section 480-3-3-.07 - Hoisting Engines

(1)Hoist Capacity - All hoisting equipment used in shafts and slopes shall be of ample capacity and of standard design commercially recognized as safe, for its particular duty.

(a) The drums or cable reels of hoists used in shafts and slopes shall be provided with flanges that extend not less than two inches (2") radially beyond the outer layer of rope when the rope is fully wound on the drum or reel.

(2)Hoist Brakes - All such hoists shall have sufficient power to hoist the unloaded unbalanced cage or skip and shall be equipped with brakes adequate to stop and hold the fully loaded unbalanced cage or skip, (or trip of cars), at any point in the shaft or slope.

(a) All hoists used for handling mantraps shall be provided with indicators that plainly show the engineer or hoistman the true position of the cages, skips, or cars in the shaft or slope at all times.

(3)Safety Devices on Hoists - All electrical hoists used for handling mantrips in vertical shafts shall be equipped with protective devices which will promptly bring the hoist to rest upon failure of power and will permit the lowering of the cage, skip or cars by brakes after it has been brought to rest through failure of power.

(a) All electrical hoists used for handling man trips in vertical shafts shall be equipped with a device to prevent overwinding and to prevent the cage or skip from falling back down the shaft or incline if overwound. It shall also be provided with an overspeed device which shall be connected whenever men are being hoisted or lowered and which shall be so adjusted as to prevent the men from being hoisted or lowered in excess of the speed stipulated in these rules.

(b) Hoisting cable shall be firmly clamped to the drum or reel and at least three (3) turns of the cable shall remain on the drum or reel at all times when the cable is extended to the lowest landing.

Author: Marcus Davis, Workers' Compensation Examiner.

Ala. Admin. Code r. 480-3-3-.07

Statutory Authority:Code of Ala. 1975, § 25-2-13(2)