Code of Federal Regulations (Last Updated: November 8, 2024) |
Title 30 - Mineral Resources |
Chapter I - Mine Safety and Health Administration, Department of Labor |
SubChapter O - Coal Mine Safety and Health |
Part 77 - Mandatory Safety Standards, Surface Coal Mines and Surface Work Areas of Underground Coal Mines |
Subpart O - Personnel Hoisting |
Wire Ropes |
§ 77.1436 - Drum end attachment.
Latest version.
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§ 77.1436 Drum end attachment.
(a) For drum end attachment, wire rope shall be attached -
(1) Securely by clips after making one full turn around the drum spoke;
(2) Securely by clips after making one full turn around the shaft, if the drum is fixed to the shaft; or
(3) By properly assembled anchor bolts, clamps, or wedges, provided that the attachment is a design feature of the hoist drum. Design feature means either the manufacturer's original design or a design approved by a registered professional engineer.
(b) A minimum of three full turns of wire rope shall be on the drum when the rope is extended to its maximum working length.