Shift inspection: before each shift the equipment is used, a competent person begins a visual inspection, completed before or during the shift, of running and standing ropes likely to be used, looking for apparent deficiencies without opening the rope or booming down. Category I deficiencies: significant structural distortion (kinking, crushing, unstranding, birdcaging, core failure or core protrusion), significant corrosion, heat or non-power-line arc damage, and end connections that are wrongly applied or that show significant corrosion, cracks, bending or wear. Category II: visible broken wires beyond set counts (running ropes: six randomly distributed in one rope lay or three in one strand in one lay; rotation resistant ropes: two randomly distributed in six rope diameters or four in 30 diameters; pendants or standing ropes: more than two in one lay away from end connections or more than one in a lay at an end connection) and diameter loss above 5% from nominal. Category III: core protrusion or distortion showing core failure in rotation resistant rope, prior power line contact, or a broken strand. Particular attention goes to rotation resistant rope, boom and luffing hoist ropes at reverse bends, flange, crossover and repetitive pickup points on drums, terminal ends, and rope on saddles or limited-travel sheaves. Removal: Category I found hazardous by the competent person stops use until the rope is replaced or a localized defect is cut out. Category II stops use until the rope maker's removal criterion (or one it approved in writing for that rope) is met, the rope is replaced, or the localized defect is cut out. Category III stops use until replaced, or a localized defect other than power line contact is cut out; ropes that touched an energized line may not be repaired. Splicing lengths together is forbidden, and a shortened rope must leave two wraps on the drum at the lowest load or boom position. The equipment or hoist is tagged out per 1926.1417(f)(1) until repair or replacement. Monthly: each month a shift-type inspection is done, including items the annual inspector flagged for monitoring, with no use until no corrective action is needed, documented as under 1926.1412(e)(3). Annual: at least every 12 months a qualified person does the shift inspection plus a thorough check of the whole rope surface, focusing on critical items, normally hidden sections, reverse bends and rope over sheaves; if infeasible because of set-up or site conditions, it must be done as soon as feasible and within an extra 6 months for running ropes, and at disassembly for standing ropes. Hazards are handled as above, watch items are added to monthly checks, and documentation follows 1926.1412(f)(7). Lubricants that hinder inspection are banned, and records must be available to all inspectors during retention.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.