OSHA Safety and Health Regulations for Construction (29 CFR Part 1926)
Subpart CC: Cranes and Derricks in Construction – OSHA Safety and Health Regulations for Construction (29 CFR Part 1926)

OSHA Safety and Health Regulations for Construction (29 CFR Part 1926) 1926.1433: 1926.1433 Design, construction and testing

Applies to equipment with a manufacturer-rated hoisting capacity above 2,000 pounds. Crawler, truck and locomotive cranes built before November 8, 2010 must meet ANSI B30.5-1968, PCSA Std. No. 2 (1968), paragraph (b), or the DIN standards in force when built. Mobile cranes (crawler and truck included) and locomotive cranes built from November 8, 2010 onward must satisfy listed portions of ASME B30.5-2004 covering load ratings where stability or structural competence governs, backward and forward stability, boom and load hoist mechanisms, telescoping booms, swing, travel, controls, sheaves and sheave sizes, booms, outriggers, locomotive equipment, clutch and brake protection and miscellaneous equipment. Those cranes need prototype testing under Test Option A (SAE J1063 (Nov. 1993) tests and strength margins for cantilevered booms, SAE J987 (Jun. 2003) for pendant supported lattice booms) or Test Option B (BS EN 13000:2004 plus computer analysis against the SAE load cases and margins, with physical tests unless the modelling has a documented strain gauge verification history); tower cranes built on or after that date must meet BS EN 14439:2006. For all covered equipment, the cab information must include the full range of rated capacities at all approved radii, boom angles, work areas, boom and jib lengths and configurations, alternate ratings for optional equipment such as outriggers and extra counterweight, a work area chart, no-load areas, recommended reeving and rope size and type, boom hoist reeving diagram, tyre pressure, cautions including the least stable direction, gantry and intermediate suspension position, boom erection instructions, hoist holding and free fall capability, telescopic travel lengths, manual or powered telescoping, extension sequence, loads allowed while extending, and hydraulic relief settings. Hooks, balls and blocks must overhaul the line and be marked with rated capacity and weight. Hooks need latches that close the throat, unless a qualified person decides unlatched hoisting is safer and load routes are pre-planned so only hooking and unhooking workers are in the fall zone. Posted warnings must stay legible, and a fire extinguisher must be carried on the equipment where it can be reached. Cabs need adjustable ventilation and windshield clearing, doors that cannot open or close unintentionally (swinging doors next to the operator open outward, sliding doors rearward), front and side safety-glass windows giving a view of the boom point, a clear passage to an exit on the operator's side, and roof workstation areas holding 250 pounds without permanent distortion. Moving parts and hot exhaust components must be guarded where employees (other than maintenance staff) could contact them, hydraulic lines protected where feasible, exhaust discharged away from the cab, friction brakes and clutches sized and adjustable, and hydraulic load hoist drums fitted with holding devices. Manufacturer documentation of compliance satisfies (a) to (c) and (d)(7) to (13) for unmodified equipment.

Maintained by Gerard Blokdyk

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