Idaho Admin. Code r. 24.39.80.702 - TETHERED LINE SAFETY REQUIREMENTS

01. Inspection of Tethered Lines. Tether lines shall be new wire rope and have a rated breaking load according to the cable-assisted logging system manufacturer's recommendations and specifications. At a minimum, a competent person shall inspect the entire length of each tether line and drum connection prior to the startup of each cable-assisted logging operation, and thereafter on a monthly basis. A competent person shall also inspect the first fifty (50) feet of each tether line daily prior to use. These inspections shall be documented in writing. Tether lines must not be spliced and shall be replaced if there is evidence of chafing, sawing, crushing, kinking, crystallization, bird-caging, significant corrosion, heat damage, other damage that has weakened the tether line. (3-31-22)

02. Line Tension. The tether line tension and machine travel shall be synchronized or automatically held constant to ensure tether line tension is continuously provided and does not exceed thirty-three percent (33%) of the rope's rated breaking load. The operator shall have an immediate and self-reliant or automated method to identify tether line tension, winch rotation and speed, amount of line on and off the drum, and anchor movement. (3-31-22)

03. Tether Line Components. All tether line assembly components shall be rated with a greater safe working load than the wire rope. Tether line attachment points and hitches shall be engineered and certified to maintain a safety factor equal to or greater than the recommendations and specifications of the cable-assisted logging system manufacturer. Inspections of tether line assembly components (except drum connection as specified in Subsection 011.01 of these rules), hitches, winches, machines, and anchors shall be performed daily by a competent person prior to use. (3-31-22)

Notes

Idaho Admin. Code r. 24.39.80.702