R 408.10582 Suspension wire rope maintenance; inspection and replacement.

Rule 582. (1) Any of the following conditions or combination of conditions are because for removal of the wire rope: (a) In any length of 8 diameters, the total number of visible broken wires is more than 6 in 1 rope lay or 3 wires in 1 strand. (b) The wire rope has been kinked, crushed, or bird-caged or has sustained any other damage that distorts the wire rope structure. (c) The wire rope shows heat or corrosive damage. (d) The wire rope contains a broken wire within 18 inches (460.8 mm) of the end attachment. (2) Wire rope that is bent to form an eye over a bolt or rod that has a diameter that is less than 4 times the rope diameter shall be equipped with a metal thimble. (3) End fittings should be swagged or zinc-poured sockets. (4) Where wire clips are used, the provisions of table 8 shall be followed and the u-bolts shall be installed on the dead end or short end of the wire rope. (5) Wire rope shall be stored in a manner to prevent damage or deterioration. (6) Before cutting wire rope, a seizing shall be placed on each side of the cut on preformed wire rope, 2 seizings shall be placed on each side of 7/8 inch size or smaller nonpreformed wire rope, and 3 seizings shall be placed on each side of 1 inch or larger size nonpreformed wire rope. (7) Wire rope shall be maintained in a lubricated condition over its entire length with the same type of lubricant that is used by the manufacturer. (8) Suspension wire ropes shall be maintained and used in accordance with the procedures recommended by the wire rope manufacturer. (9) Suspension wire rope shall be inspected by a competent person for visible defects and gross damage to the rope before every use and after each occurrence that might affect the wire rope's integrity. (10) A thorough inspection of suspension wire ropes in service shall be made once a month. Suspension wire ropes that have been inactive for 30 days or more shall have a thorough inspection before they are placed into service. These thorough inspections of suspension wire ropes shall be performed by a competent person. (11) The need for replacement of suspension wire rope shall be based on its condition. A wire rope shall be removed for any of the following conditions: (a) Evidence of core failure. A lengthening of rope lay, protrusion of the rope core, and a reduction in rope diameter suggests core failure. (b) Outer wire wear is more than 1/3 of the original outer wire diameter. (c) Any other condition that the competent person determines has significantly affected the integrity of the rope. (12) The owner shall keep a certification record of each monthly inspection of a suspension wire rope which shall be verified by the employer. The record shall include the date of the inspection and a number or other identifier of the wire rope that was inspected. The record of inspection shall be made available for review by the director of the Michigan Department of Licensing and Regulatory Affairs or his or her designated representative and by the employer.